Device
- Why the SD card is not displayed or cannot be read after a mobile phone is connected to a computer?
- Why is the available RAM space smaller than the nominal RAM space?
- Why the SD card cannot be identified?
- Why Cannot Answer Calls Automatically
- Why is the first power-on (including the first power-on after upgrade) slow?
- Why do background programs always close?
- Why Data Services Cannot Be Used During Roaming?
- Why is the software always flashing back and exiting automatically?