Blu F91 5G User manual

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F91 5G
User Guide

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Contents
I. CAUTIONS ON MOBILE PHONE USE............................................................................................................... 4
1.1 INTERFERENCE......................................................................................................................................... 4
1.2 REASONABLE USE.................................................................................................................................... 4
1.3 QUALIFIED MAINTENANCE SERVICE .......................................................................................................... 4
1.4 WATER-RESISTANCE................................................................................................................................. 4
1.5 EMERGENCY CALLS.................................................................................................................................. 4
2PRECAUTIONS FOR USE OF BATTERY........................................................................................................... 4
3CAUTIONS FOR CHILDREN............................................................................................................................ 4
II. KEYS AND PARTS........................................................................................................................................ 5
III. START TO USE ........................................................................................................................................... 6
3.1 TO INSERT SIM CARD(S): ........................................................................................................................ 6
3.2 CHARGE THE BATTERY ............................................................................................................................. 8
IV. BASIC FUNCTIONS..................................................................................................................................... 9
1. LOCK AND UNLOCK THE SCREEN ................................................................................................................ 9
2. MAKE IT YOURS .........................................................................................................................................10
3. SWITCH TO RECENTLY USED APPLICATION ...............................................................................................16
4. MAKE A CALL ............................................................................................................................................17
5. CALL LOG..................................................................................................................................................18

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6. ANSWERING PHONE CALLS AND REJECTION ..............................................................................................19
7. ADD A CONTACT ........................................................................................................................................20
8. SEND AND RECEIVE MESSAGE(S)..............................................................................................................21
9. BROWSER THE WEB..................................................................................................................................23
10. DOWNLOAD APPLICATIONS FROM PLAY STORE .......................................................................................24
11. MANAGE APPLICATIONS ..........................................................................................................................25
12. APPLICATIONS &UTILITIES .............................................................................................................26
13. SETTINGS................................................................................................................................................26
V. TECHNICAL INFORMATION .........................................................................................................................31

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I. Cautions on mobile phone use
1.1 Interference
All phones may be interfered, which affect phone calls.
1.2 Reasonable use
Use only in the normal position. Do not touch the antenna area unnecessarily.
1.3 Qualified maintenance service
Only qualified personnel may install or repair this product.
1.4 Water-resistance
Your device is non water-resistant. Keep it dry.
1.5 Emergency calls
Ensure the phone is switched on and in service. Enter the emergency number and press the
Dialer icon.
2 Precautions for use of battery
2.1 Do not dispose of batteries near or in a fire to avoid dangers.
2.2 Do not dispose of batteries in the garbage. Dispose of batteries to assigned battery recycling
center.
3 Cautions for children
Keep your device out the reach of children in case of accidental injury caused by incorrect use of
the device as toys.

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II. Keys and parts

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1. Receiver
2. Light sensor / Proximity sensor
3. Front Camera
4. Power key/ fingerprint
5. Audio jack
6. Mic
7. USB Connector
8. Speaker
9. Adjust volume key
10. Rear Camera
11. Flashlight
III. Start to use
3.1 To insert SIM card(S):
Insert the SIM card correctly in the card slot(s) (See figure below), suggest switch off the phone
when you insert SIM card.
Insert the Micro SD card into the slot with the correct direction (See figure below), suggest switch
off the phone when you insert Micro SD.
Note: Use only compatible memory cards with this device. Incompatible memory cards may
damage the card or the device and corrupt the data stored in the card.

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3.2 Charge the battery
During charging, the battery indicator on the phone is a thunder icon. If the device is switched off
during charging, there will still be a charging indication on the screen that shows the phone is
being charged. If the device is overused when the battery is low, the charging icon might take
some time to appear.
When the battery indicator on the screen display 'Battery is full', thunder icon will disappear,
which means the completion of charging. If the phone is switched off during charging, the screen
will display ' Battery is full '. It generally takes 4 hours to charge the battery. During charging, the
battery, the device and the charger will get hot. This is normal.
Unplug the charger from theAC electrical outlet and disconnect the wiring between the phone and
the charger after charging. .
Cautions: Charge the phone in a well ventilated place in which the temperature isbetween -10℃
to +55℃. Use the charger provided by the manufacturer only. The use of unconfirmed charger
may lead to dangers and violate the manufacturer's warranty clause. If the temperature is too
high or too low during charging, the device will automatically send a warning and stop charging to
avoid damage to the battery or any danger.

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IV. Basic functions
1. Lock and unlock the screen
Press power button to enter Sleep mode and meanwhile the screen will be locked; press power
button again to wake up and then swipe up for unlock.

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2. Make it yours
2.1 Home screen: It is your starting point to access all the features on your phone. It displays
application icons, widgets, shortcuts, and other features.