Docomo F-42A User manual

Rakurakusmartphone
QUICKINSTRUCTIONMANUAL F-42A
ISSUE DATE:
NAME:
PHONE NUMBER:
MAIL ADDRESS:

Introduction
Thank you for purchasing "F-42A" mobile terminal.
Before using your terminal, or when necessary, read
this manual to ensure safe use and handling.
Manuals
Viewing this manual
･ "F-42A" mobile terminal is usually referred to as "the
terminal".
･ The images or illustration used in this manual are
examples. They may differ from the actual displays.
"Authenticate" indicates the operating procedure for
entering security code or password depending on
functions.
･ In some step descriptions, pressing button is shown
by illustration ( → p.13).
･ Main operations are provided. Apart ofoperation
steps is simplified in the descriptions.
･ Unauthorized copying of parts of or this entire manual
is prohibited.
･ The contents in this manual, URL and contents are
subject to change without prior notice.
" かんたん操作ガイド (Kantan operation guide)" (booklet)
This manual provides main functions and operations for
the terminal. Operate according to the explanation to use
basic function of F-42A.
" らくらくスマートフォン me を
お使いになる前に (Before using Raku raku smartphone me)"
(booklet)
This manual provides important information for using the
terminal. For attaching docomo nano UIM card, microSD
card or charging, refer to this booklet.
" 使いかたガイド (User's guide)" (installed in the terminal)
This manual provides detailed information and operations
of the functions.
<Operation Steps>
From the Home screen, [ 使いかたガイド (User's guide)] e
Search method
"Instruction manual" (PDF file)
This manual provides detailed information and operations
of the functions.
<From PC>
https://www.nttdocomo.co.jp/support/trouble/manual/
download/index.html
*You can download the latest information.
On the Home screen, touch and push .
Describes operation result and complemental explanation.
1
From the Home screen, [ メール (Mail)]
Touch and push .
[ 送受信履歴 (Sent and received logs)]
2
Touch and push [ 送信した人 (Sender)] or [ 受信した人
(Recipient)] according to your purpose.
[ 受信した人 (Recipient)]/[ 送信した人 (Sender)]
A log list appears.
･ To delete all logs, touch and push [ 受信履歴を削
除する
(Delete received log)]/[ 送信履歴を削除す
る
(Delete Sent log)].
･ Select alog to create mail, register/add to
phonebook or delete.
・

Contents/Precautions
1
Contents
■ Before using the terminal ................................2
■ Precautions (Always follow these directions)
.................................................................................. 3
■ Handling precautions .......................................7
■ Waterproofness/Dustproofness ....................11
Before using the terminal ............13
Part names and functions.......................................13
docomo nano UIM card..........................................14
microSD card...........................................................14
Charging ..................................................................15
Turning power ON/OFF ..........................................16
Basic operation........................................................17
Initial settings ..........................................................18
Home screen............................................................19
Home screen/Icons..................................................20
Calling ..........................................22
Making a call/video call ..........................................22
Receiving a call/video call ......................................23
One-touch dial .........................................................23
Phonebook...............................................................24
Appendix ......................................25
Specific Absorption Rate (SAR) of Mobile Phones
..................................................................................25
Export Administration Regulations .......................28
Intellectual Property Right......................................28
SIM unlock ...............................................................30

Contents/Precautions
2
･ This terminal supports LTE, W-CDMA, GSM/GPRS,
Wireless LAN System.
･ Because your terminal uses wireless transmission, it
may not function in locations where it is difficult for
radio waves to penetrate, such as tunnels,
underground passages and some buildings, in areas
where radio waves are weak, or out of Xi and FOMA
service area. Even when you are high up in a tall
building or condominium and nothing blocks your
view outside, your terminal may not be able to receive
or transmit signals. Also, communication may be
interrupted even when there are strong radio waves
with 4 signal status icons on the terminal and you are
not moving (traveling).
･ Because your terminal uses radio waves to
communicate, it is possible that a third party may
attempt to tap your calls. However, the LTE, W-CDMA,
GSM/GPRS automatically applies a confidential
communication function to all calls, so even if a third
party could somehow tap a call, they only hear noise.
･ Your terminal encodes voice communication as
digital data. When you are operating your terminal
while moving to a location subject to weaker radio
wave conditions, the transmitted digital data may not
be correctly decoded and as a result the decoded
voice may differ somewhat from the actual voice.
･ Maintain a separate record of the data you saved in
the terminal. Note that DOCOMO assumes no
responsibility for any loss of saved contents of data
resulting from malfunction, repair, changing of the
model or other handling of the terminal.
･ In the terminal, as it is for a PC, some applications that
you install may give instability of the operation, or
may send your location information or personal
information registered to the terminal to outside via
the Internet and the information may be used
improperly. Please thoroughly check a provider and
operation status of the application etc. which you
want to use beforehand and then use it.
･ You are recommended to save important data to
microSD card. or a PC.
･ This terminal supports FOMA Plus-Area and FOMA
HIGH-SPEED Area.
･ The terminal does not support i-mode sites
(programs) or i- α ppli.
･ You can use the terminal only with docomo nano UIM
card. If you have a UIM or FOMA card, bring it to a
docomo Shop to replace.
･ Even in Manner mode, shutter sound, auto focus lock
sound for camera shooting, and count down sound for
self timer are emitted.
･ To check your own phone number, touch and push
[ 自分の電話番号 (My own phone number)] on the
Home screen.
･ The terminal automatically performs communication
for some functions, for example, to synchronize data,
check the latest software or maintain connection with
the server. If you transmit a large amount of data such
as downloading applications or watching video, a
packet communication charge becomes high.
Subscription of packet flat-rate service is highly
recommended.
･ Depending on the applications or service you use,
packet communication charge may be applied even in
Wi-Fi communication.
･ The software on the terminal can be updated with the
latest information.
･ Improving the terminals quality may be included in
the software update.
･ Display is manufactured by taking advantage of highly
advanced technology but some dots may be always or
never lit. Note that, this shows characteristics of liquid
crystal displays and not defects in the terminals.
･ When the memory of the microSD card or the terminal
is almost full, running application may not operate
normally. In this case, delete saved data.
･ In the terminal, only specified applications such as sp-
mode mail, i-channel, etc. are available. Downloading
applications from Google Play and using them are not
available.
･ If your terminal is lost, change your password or
disable your PC mail accounts using a PC to prevent
other persons from using them.
･ Set the screen lock to ensure the security of your
terminal for its loss.
･ The terminal supports only sp-mode, mopera U and
Business mopera Internet. Other providers are not
supported.
･ For details on usage fee, refer to https://
www.nttdocomo.co.jp/english/.
Before using the terminal

Contents/Precautions
3
・ Before using your terminal, or when necessary, read
the precautions below to ensure safe use and
handling. After reading this manual, keep it carefully.
・ These precautions are intended to protect you and
others around you. Read and follow them carefully to
avoid injury, damage to the product or damage to
property.
・ The signs below differentiate between the levels of
danger that can occur if the product is not used within
the specified guidelines.
・ The symbols below show specific directions.
◆ Handling the terminal, adapter,
desktop holder and docomo nano
UIM card (common)
DANGER
Do not use, store or leave the terminal in hot
places (e.g. by the fire, near a heater, under a
kotatsu, in direct sunlight, in a car in the hot
sun).
May cause fire, burns or injuries.
Do not put the terminal into heating cooking
device such as microwave oven or high-pressure
container.
May cause fire, burns, injuries, electric shock.
Do not disassemble or remodel the equipment.
May cause fire, burns, injuries, electric shock.
Do not let the terminal get wet with water,
drinking water, urine of pet animals, etc.
May cause fire, burns, injuries, electric shock.
For waterproofness, refer to "Waterproofness/
Dustproofness"
Use the adapter specified by NTT DOCOMO for
your terminal.
May cause fire, burns, injuries, electric shock.
WARNING
Do not throw the equipment or give a strong
force or hard shock to it.
May cause fire, burns, injuries, electric shock.
Keep conductive materials (metal pieces, pencil
lead, etc.) from coming in contact with the
charging jack or stereo earphone jack. Do not put
those materials inside the terminal.
May cause fire, burns, injuries, electric shock.
Do not cover or wrap the terminal with a
blanket, etc while using or charging.
May cause fire or burns.
Turn the terminal OFF and stop charging before
entering a place such as a gas station where
flammable gases are generated.
The gas may catch fire.
When using Osaifu-Keitai in a place as a gas station,
turn OFF the terminal before using it.
(When Osaifu-Keitai lock is activated, deactivate it
before turning OFF the terminal.)
Precautions (Always follow
these directions)
DANGER
This sign denotes that death or
serious injury may directly result
from improper use.
WARNING
This sign denotes that death or
serious injury may result from
improper use.
CAUTION
This sign denotes that minor injury
or damage to property may result
from improper use.
This symbol denotes that the action is
prohibited.
This symbol denotes that disassembling the
phone or its components is not allowed.
This symbol denotes that using the phone or
its components in a bathroom or other highly
humid area is not allowed.
This symbol denotes that using the phone or
its components with wet hands is not allowed.
This symbol denotes that an instruction must
be obeyed at all times.
This symbol denotes that the equipment
should be unplugged.
Don’t
No disassembly
No liquids
No wet hands
Do
Unplug
Don’t
Don’t
No disassembly
No liquids
Do
Don’t
Don’t
Don’t
Do

Contents/Precautions
4
If the equipment starts giving off a strange smell,
overheats, becomes discolored or deformed
during use, charging or in storage, immediately
perform the following operations.
･ Remove the power plug from the wall outlet or
cigarette lighter socket.
･ Turn the terminal OFF.
May cause fire, burns, injuries, electric shock.
CAUTION
Do not leave the equipment on unstable or
sloping surfaces.
May cause injuries.
Do not store the equipment in extremely humid,
dusty or hot areas.
May cause fire, burns, electric shock.
Children using the equipment should be
instructed in proper operation by an adult. Do
not allow them to use the equipment without
adult supervision.
May cause injuries.
Store the equipment out of reach of small
children.
May be accidentally swallowed or cause injuries.
Be careful especially when using the terminal
connected to the adapter continuously for a long
time.
If you use applications, call or watch 1Seg while
charging the battery for a long time, the terminal and
adapter may be heated.
Directly touching a hot part for a long time, you may
have redness, itching or rash on your skin, or it may
result in low-temperature burns depending on your
constitution and/or health condition.
◆ Handling the terminal
WARNING
Do not turn on the light by getting the lighting
part closer to other person's eyes. When
shooting infants, keep at least 1 m away from the
object.
May impair eyesight. And may cause accidents like
injury etc., by dazzling or astounding other people.
Do not put foreign objects such as liquid like
water, metal pieces or burnable things into
docomo nano UIM card slot or microSD card slot.
May cause fire, burns, injuries, electric shock.
Do not turn on the light aiming directly at the
driver of the car etc.
May disturb driving and cause an accident.
Turn the terminal OFF in areas where use is
prohibited, such as in airplanes and hospitals.
May cause electronic equipment or electronic
medical equipment to fail or malfunction.
When using the phone in a medical facility, be sure
to observe the regulations of the facility.
If you do prohibited act such as using the phone in
an airplane, you will be punished according to law.
If usage of the terminal in an aircraft is admitted by
setting airplane mode, etc., use the terminal under
the direction of the airline.
When you talk by setting handsfree or ring alert
is sounding, keep the terminal away from your
ear.
And, when connecting the earphone/
microphone etc. to the terminal and play a game
or music, adjust the volume moderately.
Too loud volume may cause a hearing loss.
And, if you cannot hear the sound around you
clearly, it may cause an accident.
If you have weak heart, be careful when setting
the Vibrate alert (vibration) or alert volume
setting.
May cause harmful effect on heart.
When you use electronic medical equipment,
check with the equipment manufacturer to
determine how the device is affected by radio
waves before using.
May cause harmful effect on electronic medical
equipment etc.
Turn the terminal OFF near high-precision
electronic control equipment or electronic
equipment using low-power signals.
May cause the equipment to fail or malfunction.
* Examples of electronic equipment to avoid.
Hearing aids, implanted pacemakers or defibrillators,
other electronic medical equipment, fire alarms,
automatic doors and other automatic control
equipment.
Users wearing implanted pacemakers or defibrillators
or other electronic medical equipment should check
with the manufacturer or sales outlet about the effect
of radio frequencies on the equipment.
When the display or camera lens is accidentally
broken, be careful of fragments of broken glass
or exposed internal parts of the terminal.
Surface of display and camera lens are made of
plastic panel so as not to be shattered, however, if
you mistakenly touch broken or exposed parts, you
may be injured.
Do
Don’t
Don’t
Do
Do
Do
Don’t
Don’t
Don’t
Do
Do
Do
Do
Do
Do

Contents/Precautions
5
CAUTION
Do not swing the terminal by the antenna, strap,
etc.
May cause accident such as injury to yourself or
others by hitting.
Do not use the damaged terminal.
May cause fire, burns, injuries, electric shock.
When using the motion sensor, check the safety
around you, hold the terminal firmly, and do not
shake it unnecessarily.
May cause accident such as injuries.
If the display part is accidentally broken and the
liquid crystal leaks out, do not make the
substance contact with your skin of face or
hands.
May cause loss of sight or skin problems.
If the liquid crystal gets into your eyes or mouth,
rinse it with clean water and see a doctor
immediately.
And, if the liquid adheres to skin or clothing, use
alcohol etc. to wipe it off, then wash with soap.
To use the terminal in car, check with
automobile manufacturer or dealer to determine
how the device is affected by radio waves before
using.
In rare cases, using the phone in some vehicle
models can cause the vehicle's electronic equipment
to malfunction. In that case, stop using the terminal
immediately.
The use of the terminal may cause itching,
rashes, eczema, or other symptoms depending
on the user's physical condition. If you develop
skin problems, immediately stop using the
phone, and see a doctor.
When watching the display, take a certain
distance from the display in a fully bright place.
May reduce visual acuity.
◆ Handling adapter and desktop
holder
WARNING
Do not use the adapter cord if it gets damaged.
May cause fire, burns, electric shock.
Do not use the AC adapter or desktop holder in
a bathroom or other highly humid area.
May cause fire, burns, electric shock.
Always use the DC adapter with a negative-
ground vehicle. Do not plug it into a positive-
ground vehicle.
May cause fire, burns, electric shock.
When it starts to thunder, do not touch adapter.
May cause electric shock.
Do not short the charging jack while it is
connected to the outlet or cigarette lighter
socket. Do not touch the charging jack with a
part of your body such as your hand or finger.
May cause fire, burns, electric shock.
Do not place heavy objects on the adapter cord.
May cause fire, burns, electric shock.
When you insert and remove the AC adapter
from power outlet, do not contact a metal strap
or other metal objects with the jack.
May cause fire, burns, electric shock.
Do not touch the adapter cord, desktop holder or
outlet with wet hands.
May cause fire, burns, electric shock.
Always use with the specified power source and
voltage.
When charging the terminal overseas, use AC
adapter for global use.
If incorrect voltage is used, this may cause fire, burns
or electric shock.
AC adapter : AC100V
DC adapter : 12 or 24V DC (specific for negative
ground vehicle)
AC adapter for global use : Between 100V and 240V
AC (Connect to the AC outlet for internal
household use)
If the DC adapter's fuse blows, replace it only
with the specified fuse.
May cause fire, burns, electric shock. For the
specified fuse, see the instructions that come with
the DC adapter.
Wipe off any dust that accumulates on the
power plug.
May cause fire, burns, electric shock.
Don’t
Don’t
Don’t
Don’t
Do
Do
Do
Don’t
Don’t
Don’t
Don’t
Don’t
Don’t
Don’t
No wet hands
Do
Do
Do

Contents/Precautions
6
When you connect the AC adapter to an outlet,
firmly connect to the outlet.
May cause fire, burns, electric shock.
When you disconnect the power plug from the
outlet or cigarette lighter socket, do not pull the
adapter cord with excessive force. Instead, hold
the adapter to disconnect.
May cause fire, burns, electric shock.
Always remove the power plug from the outlet
or cigarette lighter when not using the adapter
for an extended period.
May cause fire, burns, electric shock.
Immediately remove the power plug from the
outlet or cigarette lighter socket if water or other
fluids get into the adapter.
May cause fire, burns, electric shock.
Always remove the power plug from the
cigarette lighter socket when cleaning the
equipment.
May cause fire, burns, electric shock.
◆ Handling docomo nano UIM card
CAUTION
Be careful of the cut surface when removing
docomo nano UIM card.
May cause injuries.
◆ Handling mobile phones near
electronic medical equipment
WARNING
Wearers of medical equipment such as
implanted pacemakers or defibrillators must
carry and use the terminal at least 15 cm away
from the implanted device.
The terminal's signals may affect the performance of
electronic medical equipment.
When electronic medical equipment other than
implanted pacemakers or defibrillators are in use
outside of medical facilities (such as in home care
settings), check with the device manufacturer to
determine how the device is affected by
electrical signals.
The terminal's signals may affect the performance of
electronic medical equipment.
When you are in a crowd etc. and you have
difficulties to keep a distance of 15 cm or more
from others, turn the airplane mode on or power
off the terminal not to transmit signals.
There may be wearers of medical equipment such as
implanted pacemakers or defibrillators around you.
The terminal's signals may affect the performance of
electronic medical equipment.
When using the terminal in a medical facility, be
sure to observe the regulations of the facility.
Do
Do
Unplug
Unplug
Unplug
Do
Do
Do
Do
Do

Contents/Precautions
7
◆ Material list
◆ General
・ F-42A is waterproof/dustproof, however, do not allow
water or dust to seepinto the terminal and do not
allow accessories or optional devices to get wet or
attached with dust.
- Adapter, desktop holder, docomo nano UIM card are
not waterproof/dustproof. Do not useina bathroom
or other highly humid area or do not let rain touch.
Or putting the terminal onyour body, humidity of
sweat may cause internal corrosion and malfunction.
Note thatmalfunctions, which are determined to be
caused by water as result ofinspections, are not
covered by the warranty. Since these conditions are
outside the scope of the warranty, a repair, if at all
possible, is charged.
・ Clean the terminal with a dry soft cloth (such as a
cloth for eyeglasses).
- Rubbing it roughly with a dry cloth may scratch the
display.
-Drops of water or dirt left on the display may cause
stains.
-If the terminal is wiped with alcohol, paint thinner,
benzine or detergent, the printing may disappear or
color may fade.
・ Clean the jack occasionally with a dry cotton swab
etc.
- If the jack is soiled, connection gets worse and it may
cause power to be turned off or insufficient battery
charge, so clean the jack with a dry cotton swab etc.
Also, be careful never to damage the jack when
cleaning it.
・ Do not place the terminal near an air-conditioner
outlet.
- The rapid change in temperature may cause
condensation, causing internal corrosion and
malfunction.
・ When using,be careful not to subject excessive force
to the terminal or the battery.
- If the terminal is crammed into a brimming bag or
placed in apocket and sat on, display or internal
PCBs may be damaged or malfunction. And, if
external devices are plugged into the stereo
earphone jack, the breakage of the connector or
malfunction may result.
・ Do not rub or scrape the display with a metal piece
etc.
- May scratch the display, causing malfunction or
damage.
・ Carefully read the separate instructions thatcome
with optional devices.
Part Material/Surface
treatment
Display panel Hardened glass/AF
coating
Exterior case Front case PA-GF resin/Acrylic
UV curable coating
Back case PC+ABS-GF resin/
Acrylic UV curable
coating
Back cover PC-GF resin/Acrylic UV
curable coating
Home key PC resin/Transparent
UV
1Seg antenna Top section PC+ABS resin/Acrylic
UV curable coating
Pipe section Stainless steel
Root flexure
section
Nickel titanium alloy
Root rotating
section (Top
side)
Stainless steel/Nickel
plating
Root rotating
section (Bottom
side)
Brass/Nickel plating
Power key, Volume key, Camera
key
PC resin/Acrylic UV
curable coating
USB Type-C jack, Stereo earphone
jack
PA resin
Handling precautions

Contents/Precautions
8
◆ The terminal
・ Do not press the surface of the touch panel strongly or
operate it with sharp objects such as a nail, a
ballpoint pen and a pin.
- It may damage the touch panel.
・ Avoid extreme temperature.
- Use the terminal where the temperature ranges are
between 5 and 40 ℃ (limited to the temporary use in
a bathroom etc. when temperature is above 36 ℃ )
and humidity ranges between 45 and 85%.
・ The terminal may affect land-line phones, TVs or
radios in use nearby, so use it as far as possible from
these appliances.
・ Maintain a separate record of the data you saved in
the terminal.
- If the data is deleted, DOCOMO assumes no
responsibility for the loss of any data.
・ Do not drop the terminal or subject it to shocks.
- May cause malfunction or damage.
・ Do not plug external devices into the stereo earphone
jack at a slant, or do not pull it forcibly while it is
plugged.
- May cause malfunction or damage.
・ It is normal for the terminal to become warm during
use or charging. Continue to use it.
・ Do not leave the terminal with the camera in areas
under strong direct sunlight.
- May cause discoloring or burn-in of elements.
・ Use the terminal with the slot cap closed.
- Dust and/or water brought into the terminal cause
troubles.
・ While microSD card is being used, do not take the card
out and do not turn off the terminal.
- May cause data loss or malfunction.
・ Do not bring magnetic cards etc. close to the terminal.
- Magnetic data in cash cards, credit cards, telephone
cards, floppy disks, etc. may be erased.
・ Do not bring magnetized objects close to the terminal.
- Bringing strong magnetism close may cause a
malfunction.
◆ Adapter
・ Charge the battery in an area within the proper
ambient temperature range (5-35
℃ ).
・ Do not charge the battery in the areas below.
- In areas of excessive humidity, dust or vibrations
- Near land-line phones or TVs/radios
・ It is normal for the adapter to become hot while
charging. Continue to use it.
・ When using the DC adapter for charging, keep the
vehicle engine running.
- The vehicle's battery could become flat.
・ When using an outlet with a mechanism preventing
unplugging, follow the handling instructions for that
outlet.
・ Do not give strong shock. Do not deform the charging
jack.
- May cause malfunction.
◆ docomo nano UIM card
・ Do not use excessive force to install/remove docomo
nano UIM card.
・ Note that DOCOMO assumes no responsibility for
malfunctions occurring as the result of inserting and
using docomo nano UIM card with another IC card
reader/writer.
・ Always keep UIM ICs clean.
・ Clean UIM with a soft, dry cloth (such as a cloth for
eyeglasses).
・ Maintain a separate record of the data you saved in
docomo nano UIM card.
- If the data is deleted, DOCOMO assumes no
responsibility for the loss of any data.
・ To preserve the environment, bring the old docomo
nano UIM card to a sales outlet such as docomo Shop.
・ Take care not to scratch, touch accidentally or short
IC.
- May cause data loss or malfunction.
・ Do not drop docomo nano UIM card or subject it to
shocks.
- May cause malfunction.
・ Do not bend docomo nano UIM card or place heavy
objects on it.
- May cause malfunction.
・ Do not install docomo nano UIM card into the
terminal with a label or sticker put on.
- May cause malfunction.

Contents/Precautions
9
◆ Using Bluetooth function
・ This terminal is equipped with the security features
that are compliant with Bluetooth standards for
communication via Bluetooth. However, depending
on the settings, there may not be enough security. Be
aware of security risks when using Bluetooth.
・ DOCOMO assumes no responsibility for any
information which may be leaked during
communication via Bluetooth.
・ Frequency bands
Frequency bands used by the terminal Bluetooth
function are as below.
a 2.4 : Radio equipment that uses the 2400 MHz
band.
b FH : The modulation is the FH-SS method.
c 1 : The expected interference distance is 10 m or
shorter.
d : All bandwidths between 2400
MHz and 2483.5 MHz are used, and the bandwidth
used by mobile object identification devices
cannot be avoided.
Cautions on using Bluetooth devices
In the bandwidth used by this terminal, in addition to
home electric appliances such as a microwave oven
and industrial/scientific/medical devices, in-plant
radio stations used to identify mobile objects used in
production lines of a factory that require a license,
specified low power radio stations, or amateur radio
stations that do not require a license (hereafter
"other radio stations") can be in operation.
1. Before using this terminal, check whether other
radio stations are in operation in your
neighborhood.
2. If radio wave interference occurs between the
terminal and "other radio stations", use the
terminal in a different location or "Turn the power
OFF" to avoid the radio wave interference.
3. For details, contact "General Inquiries" on the last
page of this manual.
◆ Wireless LAN (WLAN)
・ Wireless LAN (WLAN) exchanges information using
radio waves, and allows you to freely establish LAN
connection if you are within an area where radio
wave reaches. On the other side, if you communicate
without appropriate security settings,
communications may be intercepted or hacked by
malicious parties. It is recommended to make
necessary security settings on your judgement and
responsibility.
・ Wireless LAN
Do not use Wireless LAN in a place where magnetized
by electric products, AV, OA equipment, etc. or where
electromagnetic wave is generated.
- If magnetism or electrostatic noise affects the
terminal, noise may be increased or communication
may not be available (especially when using
microwave oven, it may affect the terminal).
- Using near TV or radio may cause poor reception or
TV screen may be blurred.
- When multiple wireless LAN access points exist near
the terminal and they use the same channel, search
may not be performed correctly.
・ Frequency bands
The frequency band used by the terminal's wireless
LAN function is written as follows:
a 2.4 : Radio equipment that uses the 2400 MHz
band.
b DS : The modulation is the DS-SS method.
c OF : The modulation is the OFDM method.
d 4 : The expected interference distance is 40 m or
shorter.
e : All bandwidths between 2400 MHz
and 2483.5 MHz are used, and the bandwidth used
by mobile object identification devices can be
avoided.
Using wireless LAN built-into the terminal in 5.2/5.3
GHz outside is prohibited by the Radio Law.
Available channels vary by countries. To use WLAN
overseas, check the conditions such as available
frequency, regulation, etc. for the country.
To use in airplane, confirm with airline company in
advance.
When docomo nano UIM card is not inserted or when
you are out of service area, channels 12, 13 of 2.4 GHz
band and 5 GHz band are not available regardless of
whether you are in Japan or abroad.
ab
d
c
2.4FH1
2.4DS/OF4
abc
e
d

Contents/Precautions
10
Cautions on using 2.4 GHz devices
In the frequency band used by WLAN devices, in
addition to home electric appliances such as a
microwave oven and industrial/scientific/medical
devices, in-plant radio stations for identification of
mobile objects used in production lines of a factory
(a license is required), specified low power radio
stations (a license is not required), or amateur radio
stations (a license is required) can be in operation.
1. Before using this device, confirm that in-plant
radio stations for identification of mobile objects,
specified low power radio stations or amateur
radio stations are not in operation in your
neighborhood.
2. If this device generates harmful radio wave
interference against in-plant radio stations for
identification of mobile objects, change the using
frequency promptly or stop using wireless LAN
function, and contact "General Inquiries" on the
last page of this manual, then consult about
treatment for prevention of the interference (for
example, installation of partitions etc.).
3. If this device generates harmful radio wave
interference against in-plant radio stations for
identification of mobile objects or amateur radio
stations, or if any trouble, contact "General
Inquiries" on the last page of this manual.
Cautions on using 5 GHz devices
Channel numbers and frequency bands available in
Japan are as follows.
･ 5.2 GHz band : 5,180 to 5,240 MHz (36, 38, 40, 42
*
,
44, 46, 48 Ch)
･ 5.3 GHz band : 5,260 to 5,320 MHz (52, 54, 56, 58
*
,
60, 62, 64 Ch)
･ 5.6 GHz band : 5,500 to 5,700 MHz (100, 102, 104,
106
*
, 108, 110, 112, 116, 118, 120, 122
*
, 124, 126,
128, 132, 134, 136, 140 Ch)
* Compatible with IEEE802.11ac draft version. The
terminal may not be able to communicate with
official-version-compatible devices to be launched in
future or draft-version-compatible devices from other
companies. For compatible products, refer to the
following website.
http://www.fmworld.net/product/phone/wifi/
◆ FeliCa reader/writer
・ FeliCa reader/writer function of the terminal uses
weak waves requiring no licenses for radio stations.
・ It uses 13.56 MHz frequency band. When using other
reader/writers in your surroundings, keep the
terminal away sufficiently from them. Before using
the FeliCa reader/writer, confirm that there are no
radio stations using the same frequency band nearby.
◆ CAUTION
・ Do not use a remodeled terminal. Using a remodeled
terminal violates the Radio Law/Telecommunications
Business Act.
The terminal is certified according to technical
standard conformance of specified wireless
equipment based on the Radio Law/
Telecommunications Business Act, and as a proof of
it, the "Technical Compliance Mark " is depicted on
the electronic nameplate of the terminal.
If you remodel the terminal by removing its screws,
your certification of technical standard conformance
becomes invalid.
Do not use the terminal with its certification of
technical standard conformance invalid as it violates
the Radio Law/Telecommunications Business Act.
・ Be careful when you use the terminal while driving a
car etc.
Using a mobile phone while driving is subject to penal
regulations.
However, absolutely necessary cases such as rescue
of a sick person or maintaining public's safety are
exempted.
・ Use the Bluetooth function only in Japan.
The Bluetooth function of the terminal is compliant
with wireless standards and is authorized for use only
in Japan.
If you use this function overseas, you may be
punished.
・ Use FeliCa reader/writer function only in Japan.
FeliCa reader/writer function of the terminal conforms
to Japanese radio standards.
If you use this function overseas, you may be
punished.
・ Do not alter the basic software.
Repairs may be refused as a modification of software.

Contents/Precautions
11
F-42A provides waterproofness of IPX5
*1
, IPX8
*2
and
dustproofness of IP6X
*3
on the condition thatthe slot
cap is securely attached.
*1 IPX5 means that a phone keeps functioning after
applying a jet flow of 12.5 L/min. from every direction
from a distance of approximately 3 m for at least 3
minutes using water nozzle in 6.3 mm inner diameter.
*2 For F-42A, IPX8 means that a phone keeps functioning
after F-42A is slowly submerged to depth of 1.5 m in
static tap water at room temperature, left there for
30minutes and then taken out. (Camera function
cannot be used under water.)
*3 IP6X means a protection degree that a phone keeps
functioning and safety after it is placed in a device
with dust in diameter 75
μ or less for 8 hours, agitated
and then taken out.
❖ What you can do with waterproofness
of F-42A
・ You can talk and watch 1Seg without an umbrella in
the rain (for rainfall of 20 mm or less per hour).
- When your hands or the terminal are wet, avoid
opening/closing the slot cap.
・ The terminal can be washed with tap water at room
temperature.
- With pressing and holding the slot cap not to open,
wash the terminal with tap water without rubbing
hard.
- Do not apply water flow stronger than allowed.
- Do not use brush, sponge, soap, detergent, etc.
- If mud or soil is adhered to the terminal, eliminate
the dirt first by shaking several times in tap water of
wash-basin and then wash the terminal with running
water.
- Drain water in the specified steps after washing.
・ You can use the terminal in a bathroom.
- Do not immerse the terminal into a bathtub. Also, do
not use the terminal in hot water. May cause
malfunction. If you should fall the terminal into the
bathtub, immediately pick it up to drain water in
specified procedure.
- Never put the terminal in hot spring water or water
containing soap, detergent or bath powder. In case
the terminal gets wet with water other than tap
water, wash it in the procedure above.
- You can use the terminal within 2 hours in a
bathroom where the temperature ranges between 5
and 45 ℃ and humidity ranges between 45 and 99%.
- Rapid temperature change may cause condensation.
If you bring the terminal from a cold place to warm
place such as a bathroom, wait until the terminal
reaches the room temperature.
- Do not put hot water from a faucet or shower.
◆ To ensure waterproofness/
dustproofness
To avoid water/dust ingress, be sure to observe the
following points.
・ For installing/removing docomo nano UIM card or
microSD card, put your fingertip into the groove to
open the slot cap and then draw the slot cap.
・ Make sure to firmly close the slot cap. Even a fine
obstacle (one hair, one grain of sand, tiny fiber, etc.)
put between contact surfaces may allow water to
enter.
・ Do not poke the stereo earphone jack, microphone,
earpiece, speaker or rear microphone with a sharp
object.
・ Do not let the terminal fall. It may become scratched
causing the waterproof/dustproof performance to
degrade.
・ The rubber seal in the slot cap play important roles for
keeping waterproof/dustproof performance. Do not
damage or remove the rubber seals. Also, prevent
dust from adhering to it.
To keep the terminal waterproofness/dustproofness,
replacement of parts is required every 2 years
regardless of whether the terminal appears normal
or abnormal. DOCOMO takes the terminal to replace
the parts as a chargeable service. Bring the terminal
to a sales outlet such as a DOCOMO-specified repair
office.
Waterproofness/
Dustproofness

Contents/Precautions
12
◆ Important precautions
Do not perform actions shown in the illustrations below.
Observe the following precautions to use the terminal
properly.
・ Accessories and optional devices are not waterproof/
dustproof. When watching 1Seg, etc. with the
terminal installed in the included desktop holder, do
not use itin a bathroom, shower room, kitchen or
lavatory even if it is not connected tothe AC adapter.
・ Do not apply water flow stronger than allowed. Even
if the F-42A is waterproof in IPX5 waterproof, water
may enter inside from a damaged section and cause
troubles such as electric shocks or corrosion of the
battery.
・ If the terminal gets wet with salt water, sea water,
refreshing beverage or mud or soil adhered, wash it
immediately. If theydry out, it is hard toremove the
dirt and it may cause damage or malfunction.
・ Do not put the terminal in hot water, use it in asauna
or apply hot airflow (from a hair dryer etc.) to it.
・ Do not move the terminal in water or slam the
terminal against the surface of water.
・ When you use the terminal in swimming pool, obey
rules of the facility.
・ The terminal does not floatonwater.
・ Do not leave water on the terminal. May short-circuit
the power jacks, orina cold region, water may freeze
causing malfunction.
・ Do not leave water on the stereo earphone jack,
microphone, earpiece or speaker. Such water may
interfere with talking.
・ If the terminal gets wet with water or other liquids
with the slot cap open, the liquid may getinside the
terminal causing electric shocks or malfunction. Stop
using the terminal, turn the power OFFand contact a
DOCOMO-specified repair office.
・ If the rubber seal ofslot cap isdamaged or deformed,
replace it at DOCOMO-specified repair office.
DOCOMO does not guarantee actual operations
under all states. Malfunctions deemed to be caused
by inappropriate operation by the customer are not
covered by the warranty.
◆ Charging
Check the following before and after charging.
・ Never try to charge the battery when the terminal is
wet.
・ When charging the battery after the terminal gets wet,
adequately drain the terminal and then wipe off the
remaining water with a dry, clean cloth or something
similar.
・ Do not use the AC adapter or desktop holder in a
bathroom, shower room, kitchen, lavatory or other
highly humid area. May cause fire or electric shock.
・ Do not touch the AC adapter or desktop holder with
wet hands. May cause electric shock.
<Example>
Using Soap/
Detergent/Bath powder
Soaking in
ocean water
Using in
hot spring
Applying strong
water flow
Washing with
brush/sponge
Machine-washing

Before using the terminal
13
Before using the
terminal
a Stereo earphone jack (waterproof)
b 1Seg antenna
Extend when watching TV.
c Volume key ( +- key)
Adjust volume for functions. Press and hold - for 1
second or more to activate/deactivate manner mode.
d Power key ( P key)
Turn display on/off (switch sleep mode). Press and
hold to turn power ON/OFF, restart and activate/
deactivate Manner mode, Public mode and Airplane
mode.
e Slot cap
f Strap hole
g Proximity sensor/RGB sensor
Proximity sensor prevents the erroneous operation of
the touch panel during a call. RGB sensor senses
ambient light and brightness and automatically
adjusts the display backlight. Putting a protective
sheet or seal on the sensors or covering the sensors
with your finger may cause erroneous operation or
erroneous detection.
h Indicator light
i Display (Touch panel)
j Home key ( H key)
Exit from the application and return to the Home
screen.
Some applications such as Media Player and radio
can be kept active in the background.
k In-camera
l Receiver/Speaker
m Camera key ( C key)
Touch and hold on the Home screen to activate the
camera.
n Bluetooth/Wi-Fi antenna
*
o Back microphone
Use to reduce noise during a call. Do not cover it.
p Out-camera
q Flash/Light
r Xi/FOMA antenna
*
s Xi antenna
*
t GPS antenna
*
u Speaker
v mark
You can use the terminal by holding mark over
the card reader as an Osaifu-Keitai.
w Pulse wave sensor
x USB Type-C jack
y Microphone
* The antennas are built into the terminal. Covering around
the antenna by the hand may affect the quality.
Part names and functions
a
b
c
d
e
h
i
j
o
m
t
y
x
gk
l
u
v
w
f
q
n
p
s
r
42A

Before using the terminal
14
The docomo nano UIM card is an IC card in which user
information such as your phone number etc. is saved.
･ You can use the terminal only with docomo nano UIM
card. If you have a UIM or FOMA card, bring it to a
docomo Shop to replace.
･ When docomo nano UIM card is not inserted to the
terminal, some functions such as making/receiving
calls and sending/receiving SMS are not available.
･ For details on docomo nano UIM card, refer to the
docomo nano UIM card manual.
◆ Installing/Removing docomo nano
UIM card
･ Turn the terminal OFF before installing/removing.
■ Installing
a Face the display side of the terminal down, put your
fingertip into the groove and then open the slot cap
b Put your fingertip on the dent of the tray and pull it
straight out
c With the IC side facing up, fit the docomo nano UIM
card into the tray
･ Check the orientation of docomo nano UIM card
corner cut.
d Check that the display side of the terminal faces
down and then horizontally insert the tray to docomo
nano UIM card slot
e Firmly press the slot cap to close
■ Removing
a Face the display side of the terminal down, put your
fingertip into the groove and then open the slot cap
b Put your fingertip on the dent of the tray and pull
docomo nano UIM card straight out
c Check that the display side of the terminal faces
down and then horizontally insert the tray to docomo
nano UIM card slot
d Firmly press the slot cap to close
✔ INFORMATION
･ When handling docomo nano UIM card, take care not to
touch or scratch the IC part. Note that inserting docomo
nano UIM card forcibly into the terminal may damage
docomo nano UIM card.
◆ Security codes of docomo nano
UIM card
Security code called PIN code can be set for docomo
nano UIM card. "0000" is set at the subscription but it can
be changed yourself.
◆ microSD card
･ The terminal supports microSD card of up to 2 GB,
microSDHC card and microSDHC UHS-I cardof up to
32 GB, and microSDXC card and microSDXC UHS-I
card up to 400 GB(as of June, 2020).
･ DOCOMO does not guarantee actual operations of all
microSD cards. For information on compatible
microSD cards, contact manufacturers of microSD
cards.
･ Do not turn the power OFF or give shock while
accessing data on the microSD card. The data may be
corrupted.
･ Class 10 is supported as speed class rate of microSD
card.
docomo nano UIM card
microSD card

Before using the terminal
15
❖ Precautions on charging
･ If you use applications while charging, it may take time
to complete charging or charging may not complete
because applications use battery power. It is not a
defect of the terminal.
･ It is normal for the terminal or AC adapter to become
warm while charging. When the terminal becomes
warm, charging may stop temporarily for the safety.
When the terminal becomes extremely hot, stop using
immediately.
･ The following conditions will lead to a charging error
and the indicator light turns off. Charging restarts
when the charging becomes possible.
- When the power voltage of the battery becomes out
of chargeable range
- When temperature of the battery or the terminal
becomes out of chargeable range
･ If charging takes for very long time, a charging error is
notified and the indicator light turns off. Remove the
terminal from the charger and then recharge it.
･ When power voltage of the battery is abnormal,
charging error occurs and the indicator light flashes.
Remove the terminal from the charger and then
recharge it.
･ When charging starts with the battery empty, the
terminal may not be immediately activated after
turning the power ON. In this case, charge the terminal
while keeping it turned OFF, and turn it on after a
while.
･ For charging time., see "Main specification".
❖ Battery life
･ The battery is a consumable part. Each time it is
charged, time available with each charging reduces.
Talking on the phone for a long time while charging
may reduce the battery lifetime.
･ When a time available with each charging is reduced
to about a half from that of a new battery, replacement
of the battery is recommended because it is near the
end of life. The battery may swell out as it comes to
near the end of its lifetime depending on the usage
conditions, but it is not a problem.
❖ Available charging adapter
For details, refer to the manual of AC adapter, DC
adapter, or USB cable.
AC Adapter 06/07 (optional) : Supports 100V to 240V AC.
The shape of AC adapter plug is for 100V AC (Japanese
specification). A conversion plug adapter for the
destination country is required when using an AC
adapter compatible from 100V to 240V AC. Do not use
an electrical transformer for overseas use to charge
the terminal.
DC Adapter 05 (optional) : Used to charge in a car. For
using, USB cable A to C 01 (optional) is required.
◆ Charging with AC adapter
Follow the procedure below to use AC Adapter 07
(optional) for charging.
a Insert the Type-C plug of the AC adapter horizontally
into the USB Type-C jack of the terminal
b Insert the AC adapter power plug into an outlet
･ The indicator light on the terminal lights up red
while charging, and turns off when charging is
complete.
c When charging is complete, remove the AC adapter's
power plug from the outlet
d Remove the Type-C plug of the AC adapter
horizontally from the USB Type-C jack of the terminal
◆ Charging with a PC
You can charge the terminal via a PC using USB Cable A
to C 01 (optional) etc.
･ When a screen of new hardware detection or
operation selection appears on the PC, select " キャンセ
ル (Cancel)".
Charging

Before using the terminal
16
◆ Turning power ON
1
Press and hold P (2 sec. or more) until the
indication light lights in green
The top screen appears following the startup
screen.
2
On the Top screen, slide from bottom to top
･ When a confirmation screen for sending terminal
error information appears, touch and push [OK].
■ Turning power ON for the first time
Make initial setting for DOCOMO services after making
the initial setting for the terminal (setup the terminal).
Follow the onscreen instructions.
❖ Top screen
Top screen is a screen for preventing misoperation.
1
On the Top screen, slide from bottom to top
Home screen appears.
✔ INFORMATION
･ On the top screen, the display is automatically turned off
according to the screen time out setting and the terminal
goes into sleep mode.
❖ When the screen display is turned off
When no operation is performed in certain period of
time, the display is automatically turned off according to
the screen time out setting and the terminal turns into
sleep mode.
1
P key
Sleep mode is deactivated, and the top screen
appears.
Setting sleep mode manually : P key
✔ INFORMATION
･ When receiving a call while in sleep mode, sleep mode is
deactivated.
◆ Turning power OFF
1
Press and hold P until the phone options
menu appears
2
[ 電源を切る (Power off)] e [OK]
The terminal vibrates and turns OFF.
Restarting : [ 再起動 (Restart)] e [OK]
Turning power ON/OFF

Before using the terminal
17
◆ Using touch panel
You can operate the terminal by directly touching with
your finger.
❖ Notes for using the touch panel
Touch panel is designed to be operated with your
fingertip. Do not apply excessive force on the touch
panel or use sharp objects (nail, ball point pen, pin, etc.).
･ Touching the touch panel may not work in the
following cases. Note that it may cause malfunction.
- Operation with gloved hands
- Operation with tip of fingernail
- Operation with a foreign object on the display
- Operation with protective sheet or seal on the display
- Operation with the touch panel wet
- Operation with finger wet by sweat or water
- Operation under water
❖ Touch and push
Touch lightly and push, then release the finger.
Operation is performed at the instant of pushing.
･ For some applications, touch and long-push on the
screen.
･ Lightly touch the screen to change the color or frame
of available icons or menu options by default. When
you touch and push it, you can feel vibration on your
finger. You can change operations in Rakuraku touch
setting.
･ When Rakuraku touch setting is disabled, touch the
screen lightly and release the finger (touch). Operation
can be valid at the instant of releasing the finger from
the screen.
･ In some applications or when browsing web sites, etc.,
the following operations may take place in spite of
Rakuraku touch setting.
- Even if Rakuraku touch setting is enabled, touch and
push operation is not accepted
- Even if Rakuraku touch setting is enabled, the
terminal does not vibrate
- Touching and pushing does not change color and
frame
- When an icon or menu option is touched and pushed,
its color or frame does not change but the terminal
vibrates
･ Tapping free area other than displayed screen may be
cancel operation.
❖ Slide (Swipe)/Drag/Pan
Slide (Swipe) : Touch the screen with your finger and
drag to the desired position.
･ For some screens, keeping touching the same point for
0.5 seconds or more fixes the scroll operation by slide
operation. Release your finger from the screen to
cancel the fix status.
Drag : Touch an item etc. on the screen and move it to the
desired position.
Pan : Drag the screen in some direction to view the
desired part.
❖ Pinch
Touch the screen with two fingers and widen (pinch-out)
or narrow (pinch-in) the fingers' distance.
❖ Flick
Touch the screen and sweep the finger quickly.
Basic operation
Example : Drag

Before using the terminal
18
◆ Switching the portrait/landscape
view
The terminal supports a motion sensor that senses
orientation or motion of the terminal. You can switch
screen view by tilting the terminal vertically or
horizontally.
･ Even when you change the orientation of the terminal,
the screen may not change depending on the screen
displayed.
For the first time you turn the power ON, a screen for
preparation before using the terminal (initial settings)
appears.
･ The settings can be changed later.
･ If you turn the power OFF with some settings not made
in the initial settings, unset items appear again when
you turn the power ON next time.
･ If you turn on the power without docomo nano UIM
card inserted, " 日付と時刻 (Day & time)" setting
appears. The initial setting screen for DOCOMO
services does not appear.
1
On the ようこそ画面 (Welcome screen), [ 開始
(Start)]
2
Following the onscreen instructions, set
each item
･ Wi-Fi に接続 (Connect to Wi-Fi)
･ アプリとデータのコピー (Copy application and
data)
･ ログイン (Login)
･ スマートフォンの保護 (Protection of smart
phone)
･ Google アシスタント (Google assistant)
･ Google サービス (Google service)
3
In the initial settings screen for docomo
services, touch and push of [
すべてのリ
ンク先の内容に同意する
(Agree to all)] and
change to
4
[ 次へ (next]]
5
Following the onscreen instructions, set
each item
･ d アカウント (d ACCOUNT)
･ ドコモサービス一括設定 (Set all docomo services)
6
Following the onscreen instructions on the
"
その他の設定項目 (Other settings)" screen,
set each item
7
[ 設定完了 (Finish)]
Initial settings