Thursday, 8 October 2015

Menu and back buttons keep repeatedly pressing ...even in recovery mode



I recently flashed my GT-i9506 and installed CyanogenMod. After finishing, the back and menu buttons (more often the menu button) kept getting pressed with the backlight on and vibrations too without me touching them. The weird thing is that while I was trying to fix it by going to various recovery modes after constantly switching the problem happened there too. The screen was recently replaced but I don't recall this happening at all on the stock ROM after the repairment.

Here's what happened:
  • I used Heimdall to flash TeamWin recovery but kept getting a common problem with PIT files while in download mode (can't post links because I'm a new user)

  • I compiled SaburoJiro's Heimdall fork as suggested and that seemed to fix the issue. TeamWin recovery was flashed succesfully.

  • I flashed the official CyanogenMod rom for gt-i9506 following the instructions on their wiki page. Everything seemed to work fine up until the point where the OS started up.


What I tried:
  • Tried various recovery images including TeamWin and ClockworkMod Recovery. The problem happens on both.

  • Used both Odin and Heimdall to flash.

  • Factory resets and cache clearing


A temporary solution is to enable the on screen navbar, which disabled the hardware keys which were causing the problem. The keys still keep lighting up while the screen is on but they don't do anything.

Is there any way to restore the phone beyond recovery mode (which this seems to happen in too)? I'm pretty sure this isn't a hardware issue.



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