Black screen on Mate 20X

[Wag]

For no reason the screen turn black when dialing a number. By pressing the on/off button it turns back on again. Must be a setting somewhere but cannot find it. Help please

 

[Kiemo]

Weird

 

[Wag]

....and irritating

 

[///MoH]

Perhaps a proximity sensor issue ?

 

[ArmatageShanks]

Perhaps a proximity sensor issue ?

Thos

Had the same issue on a previous device, the call app inverted the sensoe value creating a false positive turning tje screen off.

Solved it by just downloading another random app to make calls with

 

[Wag]

Thanks for help. Tried a few call apps but no go. If I insert a earphone jack into phone then it is working perfectly.

 

[Wag]

After installing emui 10.1 the problem's gone.