Phone screen stays on for less than a second then turns off
My honor 8 started having screen issues today, but it feels like they are software more than hardware-based. When pressing the power/screenlock button the screen will flicker on for less than half a second (everything looks fine in this screen as far as I can tell) and then goes dark again. Pressing the lock button one more time doesn’t do anything, thus I guess this locks the screen again, but then after that further pressing the lock button repeats the above behavior.
I tried restarting the phone using the power button, power + volume up, power + volume down, power + both volume, but the result is always the same. Any ideas on what is happening here and what I could try to solve it? Should I just start looking for a new phone?