a bit of background, i went full retard and factory reset my android head unit, then when the white screen with the crosshair popped up i had no idea what it was, so i started touching the screen randomly. turns out the white screen was the touchscreen calibration, so i ended up ruining my touchscreen completely because now there are giant dead spots on the screen or i tap somewhere and the screen thinks ive tapped a completely different place. my first question, how do i even find out which headunit i have? (i bought the car used and it alreaddy had the radio installed in it.) and is this fixable without going into the device settings, because i cant navigate there. second is there a way to factory reset the device using just the hardware keys?
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