The top of oppoa93 mobile phone will turn black when touched.

If the distance sensor at the receiver is blocked during the mobile phone call (such as answering near the ear), the screen will be black at this time, which is a normal situation designed to prevent accidental touch;

If the distance sensor is not blocked during the call and the screen of the mobile phone is black, I suggest you try the following operation methods:

1. Check whether the film covers the distance sensor and tear it off for observation.

2. If the mobile phone system version is not the latest, it is recommended to upgrade to the latest version.

3. Back up the important information of the mobile phone (contacts, text messages, etc.). ), restore the phone to the factory settings and see if the phone can return to normal.

None of the above methods can solve it. Please back up your mobile phone data and bring your mobile phone, invoice and warranty card to the nearest OPPO customer service center for testing and processing.

This answer applies to all OPPO models.