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• If there is a screen protector on the screen, see if the touchscreen works after
removing it.
• Make sure there are no stains such as water or sweat on the touchscreen. If
there are, wipe the screen and try again.
• If it still doesn't work, reset the phone or update software
Cannot turn on camera flash mode
• Charge your device until the battery level is at least 30%. Camera flash cannot
be used when the battery is running low.
• Clear the cache of the 'Camera' app.
• To clear an app's cache: go to the main menu -> select "Settings" -> "Apps"
-> select "App info" -> select "Camera" -> select "Storage & cache" -> select
"CLEAR DATA" and "OK".
• Drag down the quick settings bar in any interface, touch the flashlight icon to
check whether the flash on your device works.
• Check whether the camera is set to the special shooting mode. In order to
achieve a certain effect, the program will prohibit the use of the flash. Please
revert to normal camera shooting mode.
How to back up my device data
• Go to Settings > System > Backup (refer to “4.21 System” > “Reset”)
• You can also back up your data to another phone via the Switch Phone app.
Swipe up the home screen to find the search bar and enter Switch Phone,
transfer data by following the instructions.
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