Strange Screen While Locked


Lappen

Members
Dec 30, 2017
16
15
on monday i had my phone xiaomi mi5 with xiaomi eu 8.1.4 weekly in my pocket and locked.
when i took it out and wanted to unlock it, for a short second there was a screen with the word benchmark on the side and then it went back to the normal lock screen, before you unlock it. couldnt see more of the screen because it vanished too fast and wasnt able to replicate it.

does someone know what that could be?