Black screen on FP3/FP3+

• /e/ version: 0.17
• Device model(s): FP3/FP3+
• Device rooted: no

Summary

Sometimes (4 times since 2-3 days), I have a black screen and I have to remove the battery and replace it.

The problem

The 2 first times, when I want to power off the torch, the screen became black and I can't power on the phone. The 2 other times, the problem occured without any reason.