[Phone] Phone Frequently Asked Question (FAQ)

The following is the collection of Frequently Asked Question (FAQ) for Phone products and you may find a troubleshooting solution to resolve the problem you met.

 

Problem CategoryProblem itemFAQ link
System boot/shutdown abnormallyCannot power on/offTroubleshooting - Phone can not boot up
System Unstable (Hang)/OS ErrorTroubleshooting - When the application you installed unexpectedly quits, stops responding, or cannot be activated
Phone system crashed or system is unstable
Display/Touch panelAbnormal displayTroubleshooting for screen flickering or abnormal display
Touch screen ErrorTroubleshooting for Touchscreen response issues
Adapter/Battery/Charge     
 		Battery drains / Over dischargeTroubleshooting - Power percentage display is abnormal
Adapter Function ErrorHow to enable "Detect battery-draining apps" function?
Phone dialingSIM cardTroubleshooting - Abnormal charging
Phone dialingTroubleshooting - Fail to detect and read SIM card
Wi-Fi connectingTroubleshooting - Issues of making or receiving calls
3G/4G/5G data transmissionWhat to do if my phone won't connect to a Wi-Fi network?
Firmware/BIOS/FOTAUpdate firmware(FOTA)Can't use 3G/4G/5G mobile networks
How to update firmware on my phone?
Why I don't get notification of system update (FOTA)?
Software - Firmware update fail