I just started using my Fairphone 4 yesterday. Finished the migration and today the screen will not turn on.
What happens is this:
After I reboot the phone (using the Power+Volume Down combination to force a reboot) the screen is fine. Until the screen turns off once. Now I cannot turn the screen back on.
I know the phone is running, since it vibrates when I touch the fingerprint scanner, and I can connect to it over adb. Using scrcpy I can even see and control the screen. With that I also confirmed, that the screen brightness is all the way up. Only the screen doesn’t turn on at all.
This is, obviously, a mayor show stopper for me. Has anyone had this before? Does anyone know how to fix it?
Download the App linked from playstore and if you then dont see the ambient display Funktion in this app, please come back here, I’m sorry but else I cant exolain this more slowly or detailed. Without having the App it might be difficult to understand what is meant.
Hi. I have just received my brand new FP4. When the screen locks and turns dark, It remains dark when I unlock it ! I hear the “unlock” sound when I put my finger on the fingerprint sensor. But the screen remains dark ! I have to reboot the phone to see something again. And each time it is locked, the same problem happens. What shall I do ? Thanks.
I have erased everything (nothing imported from my previous phone) and restored factory settings, it still does not work. After being locked, the screen does not light on again.
I refuse to do any hardware thing. I assume it must be sent back. So disappointing.
Just to be sure: You are actually pressing the button and not only touching it which might just trigger the feedback from the fingerprint reader depending on configuration?
What exactly is your process for restarting the phone when this problem happens? (long-press power button, remove battery, something else?)
I have tried both to press the button and to touch it. The screen remains fully dark. It seems that the phone is alive as it vibrates but it remains dark. If I maintain the button pressed, the phone switches off. Then I can switch it on. It works. But when the screen lock after some inactivity period, this happens again : it cannot be revived.