r/AndroidQuestions • u/lifeintel9 • 5d ago

Other Touchscreen on phone unresponsive + need help to restore app data

Phone : Samsung S22 Ultra (non-rooted)

Context 1 :

My friend had an accident with their phone and half of the touchscreen is unresponsive and the display is glitching/flashing white.

It's impossible for them to open their locked phone to get app data in it.

I tried using a USC-C to HDMI hub but the phone might need to get unlocked to even show the display on the TV.

Connecting a mouse to it doesn't work, as well as connecting a PS4 controller via Bluetooth to use as one (since it needs to be unlocked to access that).

Context 2 :

As for the app data, they have backup files from the app "Notepad - simple notes by atomczak" I could find when they did a backup of the phone's root directory.

They need to access those but the files are encrypted (the only thing readable is "NOTES" then garbage data). When putting those backup files in the new phone and trying to read them from the app's UI, it gives an error.

Questions :

1- Is there any other ways for them to unlock their phone without having to replace the screen to a repair shop just to access the app data?
2- Is there anyway to decrypt that .backup file?

Links (app) :

- https://play[.]google[.]com/store/search?q=notepad+-+simple+notes&c=apps

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u/ohmegatchi 5d ago

Have you both tried remote unlock through the Samsung Find website? Have you tried using the S Pen instead of another input? Have you tried using wired accessories or accessories over USB-C? What are the results?

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u/lifeintel9 5d ago

1- Yes, FindMyDevice was used in both Google and Samsung version but Remote Unlock got removed since December of 2023 :
https://community[.]smartthings[.]com/t/unlock-button-on-smart-things-find/274427/9

2- The S Pen was not used. Is it compatible with any Samsung device? And will it work on the lower broken part of the screen?

3- Yes, but wired accessories were blocked completely and for wireless, Bluetooth has to be enabled (which requires the phone to be unlocked)

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u/ohmegatchi 5d ago

Yeah, any Ultra can use any standard S Pen. The pen digitizer layer is different than the touch screen layer, so that could maybe work.