CipherLab RK25 User manual

RK25 Mobile Computer
Android™ 11
Version 1.00

Copyright © 2022 CIPHERLAB CO., LTD.
All rights reserved
The software contains proprietary information of its owner; it is provided under a license
agreement containing restrictions on use and disclosure and is also protected by copyright
law. Reverse engineering of the software is prohibited.
Due to continued product development, this information may change without notice. The
information and intellectual property contained herein is confidential between the owner
and the client and remains the exclusive property of the owner. If having any problems in
the documentation, please report them to us in writing. The owner does not warrant that
this document is error-free.
No part of this publication may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, photocopying, recording or otherwise
without the prior written permission of the owner.
For product consultancy and technical support, please contact the local sales representative.
Also, visit our website for more information.
All brand, logo, product and service, and trademark names are the property of their
registered owners.
Google, Android, Google Play and other marks are trademarks of Google LLC.
The editorial use of these names is for identification as well as to the benefit of the owners,
with no intention of infringement.
CIPHERLAB logo is a registered trademark of CIPHERLAB CO., LTD. All other brands,
products and services, and trademark names are the property of their registered owners.
The editorial use of these names is for identification as well as to the benefit of the owners,
with no intention of infringement.
CIPHERLAB CO., LTD.
Website: http://www.CipherLab.com

- 1 -
Important Notices
IMPORTANT NOTICES
FOR USA
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio
communication. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired
operation.
FCC Caution:
Any changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate this equipment.
This transmitter must not be co-located or operating in conjunction with any other antenna
or transmitter.
Find the certificate information from:
Setup →About Phone →Regulatory information
Tested to Comply with FCC Standards
FOR HOME OR OFFICE USE

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RK25 Mobile Computer
FOR PRODUCT WITH LASER
This laser component emits FDA / IEC Class 2 laser light at the exit
port. Do NOT STARE INTO BEAM DIRECTLY.
Do not aim the beam at the eyes.
Any adjustments or performance excluding those specified herein
may result in hazardous laser light exposure.
ENVIRONMENT
Operate the mobile computer at ambient temperatures from -20 to 50 and with
humidity range from 10% to 90%.
Store the device at ambient temperatures from -30 to 70 and with humidity range
from 5% to 95%.
Charge the device at ambient temperatures from 0 to 45 .
This device is built with a dust-proof and splash-proof structure that conforms to
protection class IP65.
SPECIFIC ABSORPTION RATE (SAR) INFORMATION
The product complies with the FCC / Canada portable RF exposure limit set forth for an
uncontrolled environment and are safe for intended operation as described in this manual.
The further RF exposure reduction can be achieved if the products can be kept as far as
possible from the user body or set the device to lower output power if such function is
available.
For body-worn operating conditions please use belt-clips, holsters, and/or accessories that
have no metallic component in the assembly and must provide at least 10mm separation
between the device and the user's body.
FCC SAR Value (Standard limit is 1.6 W/Kg)
USA (1g): Max. 0.52 W/Kg
A minimum separation distance of 0.5 cm must be maintained between the user’s body and
the device, including the antenna during body-worn operation to comply with the RF
exposure requirements in Europe.
To compliance with RF Exposure requirements in Europe, third-party belt-clips, holsters or
similar accessories used by this device should not contain any metallic components. The use
of accessories that do not satisfy these requirements may not comply with RF exposure
requirements, and should be avoided.
CE SAR Value (Standard limit is 2 W/Kg)
EU (10g): Max. 1.03 W/Kg

- 3 -
Important Notices
NCC
SAR 2.0W/Kg 0.882W/Kg
IMPORTANT SAFETY INSTRUCTIONS AND WARNINGS FOR LI-ION/POLYMER BATTERY
It is important for users to be aware of the risks associated with lithium batteries.
Lithium Polymer and Li-ion batteries are volatile. Failure to read and follow the below
instructions may result personal injury and damage to device if charged or used
improperly.
Lithium Polymer/Li-ion batteries have limited life cycle for charging and discharging.
When life cycle has been reached, battery may swell.
Must keep Lithium Polymer and Li-ion battery away from children.
Never make wrong polarity connection when charging and discharging battery. Always
double check polarity of battery's connector.
If battery has not been using or staying in device for 2 months, please do battery
complete discharging and charging once before use. Always detach battery from device
if you will not use device for long period of time.
GENERAL GUIDELINE AND WARNING
Use specific Lithium Polymer/Li-ion charger from CipherLab only. Failure to do so may
cause fire, which may result in personal injury and property damage.
Never charge batteries unattended. When charging Lithium Polymer/Li-ion batteries,
you should always remain in constant observation to monitor the charging process and
react to potential problems that may occur.
Some Polymer/Li-ion chargers on the market may have technical deficiencies that may
cause it to charge the LiPo/Li-ion batteries incorrectly or at an improper rate. Assure the
charger you purchased works properly and always monitor charging process to ensure
batteries are being charged properly. Failure to do so may result in fire.
If at any time you witness a battery starting to balloon, swell up, smoke or hot; stop
using this battery at once and contact your dealer immediately.
If you accidentally short the battery polarity, the battery must be placed in a safe area
for observation for approximately 15 minutes. Additionally, if a short occurs and contact
is made with metal (such as rings on your hand), severe injuries may occur due to the
conductibility of electric current.

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RK25 Mobile Computer
In the event of a crash due to bad shipment or other reasons, you must remove damaged
battery for observation and place the damaged batteries from other good batteries.
Never drop the batteries.
Do NOT expose battery to water.
Do NOT attempt to dis-assemble battery.
Recommended to put the battery in an enclosure to protect it from damages by liquid or
dropping from height accidentally.
CHARGING PROCESS
Please ensure to charge battery indoor such as a well-ventilated room between 20 to
30 .
Do NOT charge battery under direct sunlight.
When selecting the cell count or voltage for charging purposes, select the cell count and
voltage as it appears on the battery label. As a safety precaution, please confirm the
information printed on the battery is correct.
Lithium Polymer/Li-ion batteries has limited life cycle for charging and discharging.
When life cycle has been reached, battery may swell.
The allowed charging temperature is from 0 to 45 .
During discharge and handling of batteries, do not exceed 50 .
STORAGE & TRANSPORTATION
CipherLab battery is charged in manufacturing to around 30% of its full capacity. It is a
good capacity for long-term storage & transportation.
Battery should NOT be stored in full-charged or full-discharge state; otherwise it will
damage battery permanently.
Battery subjects to discharge even when not installed in a device. For any stored &
un-used battery, it is highly recommended for every 3 months to charge battery to
40%~60% of its original capacity to prolonged storage.
Always detach battery from device if you will not use device for long period of time.
Store battery indoor temperature between 0 to 30 for the best performance.
Do NOT store battery in temperature exceeding 50 , and never expose battery pack to
high external pressure for extended periods, which can lead to an internal short circuit
and overheating.
When transporting or temporarily storing in a vehicle, temperature range should be
greater than 0 but no more than 45 .

- 5 -
Important Notices
Storing battery at temperatures greater than 50 for extended periods of time (more
than 2 hours) may cause damage to battery.
TO USE, HANDLE, AND DISPOSE BATTERY
For Li-ion / Li-polymer battery, it is normal to balloon, expand, or swell after one year or
500 cycles (full charge-discharge cycles). Although we guarantee it will NOT cause any
damage, it can’t be used again and must be disposed at once, therefore we strongly
recommend to replace battery every year or after 500 cycles, depend on which comes
first.
If a battery performance decreases more than 20%, it means the battery is at the end of
its life cycle. Please stop using this battery, dispose properly according to the location’s
safe battery disposal procedures, and replace with a new / healthy one.
The actual number of charge cycle will vary depending on usage conditions, patterns,
ambient temperature, and other variables.
Batteries may be subject to discharging even when the battery is not installed inside a
device, therefore, to prevent permanent deterioration, batteries should not be
discharged under 5%.
Use caution to avoid puncture of the battery. Puncture of battery may damage battery
cell.
Periodically and properly dispose used battery according to local regulations.
PRODUCT WARRANTY
Product warranty is limited to original manufacturing defects in material only. Warranty will
not apply to batteries with reduced capacity due to user scenario, unless determined to be
a manufacturing flaw.
Warranty does not cover collateral damage. Due Misuse, abuse, incorrect charging and
other inappropriate use of this product are not covered under warranty.

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RK25 Mobile Computer
SAFETY PRECAUTIONS
Warning statement:
A pleine puissance, l’écoute prolongée du baladeur peut endommager
l’oreille de l’utilisateur.
To prevent possible hearing damage, do not listen at high volume
levels for long periods.
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE
OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.
For people’s safety
Do not listen at high volume levels for long periods to prevent possible hearing damage.
Do not operate this device while walking, cycling or car driving.
For the equipment
Do not use any batteries or charging devices which are not originally sold or
manufactured by CIPHERLAB CO., LTD.
Do not replace the battery with an incorrect type, to avoid the risk of heat generation,
fire, or explosion.
Do not disassemble, incinerate or short circuit the battery.
Do not touch the contact pins of the battery pack.
Do not expose the mobile computer or battery to any flammable sources.
Do not expose the mobile computer to extreme temperatures or soak it in water.
Do not use any pointed or sharp objects against the screen surface.
Do not use the styluses which are not supplied or approved by CIPHERLAB CO., LTD., to
prevent possible scratches to the touch screen.
Water residue on the touch screen may cause abnormal behaviors or the fall of its
sensitivity levels.
On the surface of the terminal and the barcode reading window, the fog or water drops
caused by low temperatures may influence barcode reading.
Do not use bleaches or cleaners to clean the device. Use a clean, wet cloth instead.

- 7 -
Important Notices
BATTERY
The main battery may not be charged to full for shipment. Charge the main battery to full
before using the mobile computer for the first time.
Main battery: The main battery powers the mobile computer to work. It takes
approximately 4 hours to charge an empty main battery to full. For the first time
charging the main battery, please charge it for at least 8 to 12 hours. The charging LED
above the screen will light up in red while charging and will turn green when charging is
complete.
When the main battery is removed, RTC retention will be maintained for at least 30
minutes.
Backup battery: The backup battery is mounted on the main board. Its role is to
temporarily keep the mobile computer in suspension when the main battery is drained
out so data in DRAM will be retained. The backup battery takes approximately 3.5 hours
to charge to full by the main battery or power adapter.
To preserve battery life and avoid battery bulge:
1) Please do not use your device while continuously connected with a power supply or
cradle for charging. If you need to use your RK25 mobile computer with a power
supply or cradle continuously connected, be sure to turn on “Balance Mode”.
2) If the main battery is fully charged, do not keep connecting your RK25 mobile
computer with charging it a power supply or cradle for charging. If you need to
continuously connect your RK25 mobile computer with a power supply or cradle, be
sure to turn on “Balance Mode”.
The allowed battery charging ambient temperature is between 0 to 45 . It is
recommended to charge the battery at room temperature (18 to 25 ) for optimal
performance.
Please note that battery charging stops when ambient temperature drops below 0 or
exceeds 45 .
In order to prevent system from shutting down after the battery is drained out, keep a
fresh battery for replacement at all times, or connect the mobile computer to an external
power.
If there are drippings or dust on the device or battery pack, wipe them away with a soft
clean cloth before battery replacement.
Turn off the power before battery replacement.
If you want to put away the mobile computer for a period of time, remove the battery
pack from the mobile computer’s battery compartment. Store the mobile computer and
battery pack separately.
Recycle batteries in a proper way for the green-environment issue.

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RK25 Mobile Computer
SCANNER
Scan a 1D barcode
1) Open ReaderConfig and tap Scan Test on the menu bar.
2) Aim the scanning window at the barcode to read. Move the device, having the barcode
located in the center of the scanning area.
3) Press any of the two side triggers. The scanning light beams to read the printed
barcodes. The buzzer beeps after scanning. The scanning light goes off once the data is
decoded, or when the decode timeout period has passed.
Scan a 2D barcode
1) Open ReaderConfig and tap Scan Test on the menu bar.
2) Aim the scanning window at the barcode to read. Move the device, having the barcode
located in the center of the scanning area.
3) Press any of the two side triggers. The scanning light beams to read the printed
barcodes. The buzzer beeps after scanning. The scanning light goes off once the data is
decoded, or when the decode timeout period has passed.
CONNECTION
Via Bluetooth or WLAN
Connection may fail when the mobile computer is around other wireless machines or
power cables as the radio frequencies of those may cause interferences.
If communication fails, move the devices much closer to each other, and try to
communicate again
After turning on, Bluetooth power is sustained even when the mobile computer is
suspended. However, if the power mode is switched to Airplane Mode, Bluetooth power
will be turned off regardless of the settings.
To a Charging & Communication Cradle
Do not insert the mobile computer to a Charging & Communication Cradle if water or
drippings are staying on the device.
The LED indicator on a Charging & Communication Cradle shows the status of battery
charging only; the status of terminal charging is shown on the device itself.
Not Charging could be the result of battery damage, battery’s failure to touch the
connector or AC plug coming off.
Charging error could be due to high battery temperature.

- 9 -
Important Notices
CARE & MAINTENANCE
This mobile computer is intended for industrial use. The mobile computer is rated IP65,
however, damage may be done to the mobile computer if it is exposed to extreme
temperatures or soaked in water.
When the body of the mobile computer gets dirty, use a clean, wet cloth to wipe off dust
and debris. DO NOT use bleaches or cleaners.
Use a clean, non-abrasive, lint-free cloth to wipe dust off the LCD touch screen. DO NOT
use any pointed or sharp objects against the surface. Always keep the LCD dry.
If you want to put away the mobile computer for a period of time, download the collected
data to a host computer, and then remove the battery pack from the mobile computer’s
battery compartment. Store the mobile computer and battery pack separately.
If you encounter malfunction on the mobile computer, write down the specific scenario
and consult your local sales representative.

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RK25 Mobile Computer
E-LABEL

- 11 -
Important Notices
CE DECLARATION

- 12 -
RK25 Mobile Computer
THAILAND CAUTION

 (Specific Absorption Rate - SAR)
 0.95 W/kg
  


- 13 -
Release Notes
RELEASE NOTES
Version
Date
Notes
1.00
Jan. 13th, 2022
Initial release

14
CONTENTS
IMPORTANT NOTICES.....................................................................................................................- 1 -
For USA .......................................................................................................................................... - 1 -
For Product with Laser .................................................................................................................. - 2 -
Environment .................................................................................................................................. - 2 -
Specific Absorption Rate (SAR) information ................................................................................ - 2 -
Important Safety Instructions and Warnings for Li-ion/Polymer Battery................................... - 3 -
General Guideline and Warning .............................................................................................. - 3 -
Charging Process ..................................................................................................................... - 4 -
Storage & Transportation ........................................................................................................ - 4 -
To Use, Handle, and Dispose Battery ..................................................................................... - 5 -
Product Warranty ..................................................................................................................... - 5 -
Safety Precautions ........................................................................................................................ - 6 -
Battery....................................................................................................................................... - 7 -
Scanner..................................................................................................................................... - 8 -
Connection................................................................................................................................ - 8 -
Care & Maintenance ................................................................................................................ - 9 -
E-Label .........................................................................................................................................- 10 -
CE Declaration.............................................................................................................................- 11 -
Thailand Caution .........................................................................................................................- 12 -
RELEASE NOTES ......................................................................................................................... - 13 -
INTRODUCTION ............................................................................................................................... 19
Features...........................................................................................................................................20
Inside the Package..........................................................................................................................20
Accessories......................................................................................................................................20
Related Documentation..................................................................................................................21
QUICK START .................................................................................................................................. 22
1.1. Overview.................................................................................................................23
1.1.1. Install/ Remove Battery ........................................................................................26
1.1.2. Installing SIM Card, SAM Card and Memory Card ...............................................29
1.1.3. Power On/Off Mobile Computer ...........................................................................32
1.1.4. Homescreen Selection ..........................................................................................33
1.1.5. Using Hardware Buttons .......................................................................................34
1.1.6. Connecting Headset ..............................................................................................35

15
CONTENTS
1.2. Charging & Communication ..................................................................................36
1.2.1. Charge Mobile Computer ......................................................................................36
1.2.2. Wired Data Transmission......................................................................................44
1.2.3. Using Wireless Networks.......................................................................................45
USING RK25 MOBILE COMPUTER .................................................................................................. 46
2.1. Battery....................................................................................................................47
2.1.1. Battery Status Indicators.......................................................................................48
2.1.2. Monitor Battery Level ............................................................................................50
2.1.3. Replace Main Battery............................................................................................58
2.1.4. Power Management ..............................................................................................61
2.1.5. Battery Precautions ...............................................................................................63
2.1.6. Battery Sensor .......................................................................................................67
2.2. Memory ..................................................................................................................69
2.2.1. Check Memory Usage............................................................................................70
2.2.2. Manage Storage Space.........................................................................................72
2.3. Touch Screen .........................................................................................................81
2.3.1. Screen Brightness .................................................................................................81
2.3.2. Screen rotation ......................................................................................................82
2.3.3. Screen Timeout Settings.......................................................................................88
2.3.4. Text Size & Display Size ........................................................................................89
2.4. Notifications...........................................................................................................90
2.4.1. Status LED .............................................................................................................90
2.4.2. Audio.......................................................................................................................91
2.4.3. Sounds and Vibration............................................................................................91
2.5. Date and Time .......................................................................................................98
2.6. Language & Keyboard Input ...............................................................................101
2.6.1. Change Display Language...................................................................................101
2.6.2. On-screen Keyboard ............................................................................................104
2.7. Sound and Volume ..............................................................................................106
2.8. Data Capture........................................................................................................107
2.8.1. Barcode Reader...................................................................................................107
2.8.2. Digital Camera .....................................................................................................107
PHYSICAL KEYPAD ........................................................................................................................108
3.1. Overview...............................................................................................................109
3.2. Basic Key..............................................................................................................110
3.2.1. Basic Key of 28-key Model..................................................................................110
3.2.2. Basic Key of 25-key Model..................................................................................111
3.3. Alpha Key .............................................................................................................112

16
RK25 Mobile Computer
3.3.1. Alpha Key of 28-key Model .................................................................................112
3.3.2. Alpha Key of 25-key Model .................................................................................114
3.4. Function Key (only for 25-key Model).................................................................116
3.5. Shift Keys .............................................................................................................119
3.6. Key Functions in Different Modes ......................................................................121
3.6.1. For 28-key Model Keypad ...................................................................................121
3.6.2. For 25-key Model Keypad ...................................................................................122
3.7. Keypad Lock.........................................................................................................124
3.8. Enterprise Settings ..............................................................................................126
3.8.1. Disable Special KeyEvent ...................................................................................127
3.8.2. Change blue key Input Method...........................................................................128
3.8.3. Physical Keypad Sound.......................................................................................131
3.8.4. Doze Mode ...........................................................................................................131
3.8.5. Convert UHF EPC to ASCII ...................................................................................132
3.8.6. Version .................................................................................................................132
BASIC OPERATION ........................................................................................................................133
4.1. Home Screen .......................................................................................................134
4.1.1. Application & Widget on Home Screen ..............................................................135
4.1.2. Folder on Home Screen.......................................................................................137
4.1.3. Current Applications ............................................................................................138
4.2. Status Bar ............................................................................................................139
4.2.1. Icons on Status Bar .............................................................................................139
4.2.2. Open Quick Setting Menu ...................................................................................141
4.2.3. Open Notifications Drawer..................................................................................144
4.3. Suspend & Lock...................................................................................................147
4.3.1. Suspend Device...................................................................................................147
4.3.2. Lock Device..........................................................................................................148
4.4. OS Update ............................................................................................................151
4.4.1. Network Update...................................................................................................151
4.4.2. SD Card Update ...................................................................................................153
4.5. Back up Your Data...............................................................................................154
4.6. Reset to Factory Default......................................................................................156
4.6.1. Erase All Data (Factory Reset) ............................................................................156
4.6.2. Erase All Data (Factory Reset with enterprise) ..................................................157
4.6.3. Welcome Wizard ..................................................................................................158
WIRELESS RADIOS........................................................................................................................162
5.1 Use Wireless Local Area Network (Wi-Fi) ...........................................................163
5.1.1. Connect to Wi-Fi Network....................................................................................163

17
CONTENTS
5.1.2. Manually Add Wi-Fi Network ...............................................................................165
5.1.3. Wi-Fi Preferences.................................................................................................168
5.1.4. Modify Wi-Fi Network...........................................................................................172
5.1.5. Disconnect Wi-Fi Network ...................................................................................174
5.2 Use Bluetooth ......................................................................................................175
5.2.1. Bluetooth Profiles ................................................................................................175
5.2.2. Turn On Bluetooth ...............................................................................................176
5.2.3. Change Bluetooth Name.....................................................................................179
5.2.4. Pair Bluetooth Devices ........................................................................................180
5.2.5. Unpair Bluetooth Device .....................................................................................182
5.3 Use Near Field Communications ........................................................................183
5.3.1 Pair with NFC Enabled Bluetooth Devices .........................................................184
USING THE PHONE........................................................................................................................186
6.1. SIM Card Management .......................................................................................187
6.2. Phone Application................................................................................................190
6.2.1 Phone Interface ...................................................................................................191
6.2.2 Place Call..............................................................................................................193
6.2.3 During A Call.........................................................................................................194
6.2.4 Receive Incoming Call .........................................................................................195
6.2.5 Check Missed Calls .............................................................................................196
6.2.6 Call History ...........................................................................................................197
6.2.7 Call Settings .........................................................................................................198
6.2.8 Make Multi-Party Calls.........................................................................................199
6.3. Audio Modes ........................................................................................................200
6.4. In-call Volume ......................................................................................................201
CIPHERLAB UTILITIES ...................................................................................................................202
7.1. A-Demo.................................................................................................................203
7.2. AppLock................................................................................................................205
7.3. Barcode To Setting ..............................................................................................206
7.4. BT Printer Mate....................................................................................................211
7.5. Button Assignment ..............................................................................................211
7.6. Device Health Dashboard ...................................................................................212
7.7. Enterprise Settings ..............................................................................................213
7.8. HF RFID Configuration.........................................................................................214
7.9. Reader Config ......................................................................................................215
7.10. Signature Capture................................................................................................216
7.11. SIP Controller .......................................................................................................217
7.12. Software Trigger...................................................................................................221

18
RK25 Mobile Computer
7.13. Terminal Emulation .............................................................................................225
7.14. WMDS Agent & WMDS Installer..........................................................................225
SPECIFICATIONS ...........................................................................................................................226
Platform, Processor & Memory.....................................................................................................226
Communication & Data Capture ..................................................................................................227
Electrical Characteristics ..............................................................................................................228
Physical Characteristics................................................................................................................229
Environmental Characteristics .....................................................................................................230
Programming Support...................................................................................................................231
APPENDIX I....................................................................................................................................232
Application Menu...........................................................................................................................232
APPENDIX II...................................................................................................................................235
Open Source License ....................................................................................................................235