Screen dark at huawei?

Hello the phone of my neighbor, the screen is dark you hardly recognize what although the brightness is set correctly. At first, a hand symbol came from Settings and then it got dark. It is a Huawei. Any tips

Hafe you try to turn it on and off agan?

Otherwise it would be interesting how bright the display will be when starting up. There, it should briefly take the maximum brightness, at the beginning of the Huawei logo namely.

Thanks, yes, that fits again

Cool.