In short: I used SecondScreen app and changed the screen resolution to a bad one. The app autostarts and changes my resolution automatically. This causes a boot loop. What can I do?
In detail: This is what I did on my non-rooted Poco F1:
- installed Second Screen
- I gave it the permissions it needed, using ADB via my PC, and other permissions it asked via UI .
- I chose some big resolution.
- I shut down the PC, before disconnecting the phone from PC.
- The phone was stuck in the weird resolution, so I restarted it.
- it is now in an infinite boot loop. :(
It starts booting normally, but than the screen resolution becomes bad (see the photo), and, before finishing the booting, it restarts again :(
At last, the recovery menu is reached and it gives me 3 options.
- Reboot (this is the restarting loop that brings me back to the same menu)
- Access via MI PC Suite: I cannot access the device this way; the device is not detected. It never sees the device, except in Fastboot it says: "Try connect in normal mode first then switch", but I cannot enter "normal" mode.
- Wipe the data (if at all possible, I would prefer to avoid losing the data).
What I know:
Codename: beryllium Bootloader: locked Anti version: 1
I can get my phone into
adb sideload modes, but unfortunately not in the "normal" adb mode. Can I uninstall the app somehow, stop it from autostart, undo its damage, or anything to fix the phone without losing the data?
A non boot-loop fix was done by typing:
From adb shell, type: wm size reset wm density reset
but I cannot find out how to do that from FASTBOOT or sideload....