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How to solve the problem of gray screen even though the screen is sensing

It is recommended to try the following methods:

1. Confirm whether the distance sensor above the screen is blocked or has dust or foreign objects.

2. Check whether third-party software is installed on the phone (such as mobile phone manager and other management software), please delete such software.

3. Back up mobile phone data (phone book, text messages, pictures, etc.) and restore the phone to factory settings

If the above method still cannot solve the problem, please send the machine to the service center. The machine will be inspected and processed by engineers.