Device
- 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?
- Why is there no signal when a cell phone is taken out of its pocket? And the cell phone can be restarted normally?
- Why is the playing of music not automatically suspended when a mobile phone calls?