flipping frames bug and workaround

[Yaky]

Not sure if this helps, but I noticed that this bug happens most often when:
- PinePhone is charging, but slowly (~0.5W, I use a battery case from another smartphone)
- Terminal is open
- I am typing something

Seems to happen less if PinePhone is not charging at all, or is plugged into a decent charger (as opposed to a battery case)

This has happened on:
- Mobian+phosh - fairly often
- pmOS+phosh - occasionally, but interestingly, the terminal mode (vol- + power 3 times) worked, and I was able to restart phoc from there
- pmOS+sxmo - once