[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
Battery drains / Over dischargeTroubleshooting - Power percentage display is abnormal
How to enable 'Detect battery-draining apps' function?
Adapter Function ErrorTroubleshooting - Abnormal charging
Phone dialingSIM cardTroubleshooting - Fail to detect and read SIM card
Phone dialingTroubleshooting - Issues of making or receiving calls
Wi-Fi connectingWhat to do if my phone won't connect to a Wi-Fi network?
3G/4G/5G data transmissionCan't use 3G/4G/5G mobile networks
Firmware/BIOS/FOTAUpdate firmware(FOTA)How to update firmware on my phone?
Why I don't get notification of system update (FOTA)?
Software - Firmware update fail
Troubleshooting- Phone device cannot detect the system updates or fails to download the update