I believe I discovered the USB mode failure cause.
Please tell us some basic information before asking for help:
- Model Name:
- Firmware Version:
- Rooted or not:
- Frequency of Occurrence:
- APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.