Friday, 5 August 2016

[SM-T530] Screen "frozen" after flashing stock 5.0 Lolipop

So I've been having this strange issue for a year now, where I want to upgrade my SM-T530 (Tab4 10.1 wifi) to the stock Lolipop (5.0.whatever) ROM in order to get the damn kernel updated so I can access all these wonderful custom ROMs (Stuck on CM 12 atm...).

But whenever I flash a stock ROM for my model, it seems to freeze the screen after the boatloader. As in, everything seems to be working, sound and touchscreen, it just doesn't update/refresh the screen. Basically, the same behaviour as described in this post.

So here's the steps I took, in the hope that anyone can point me in the right direction:
  1. Boot tablet in recovery (TWRP 3.0.1, in this case) and wipe Dalvik, /data, /cache, /system, basically everything)

  2. Reboot tablet into bootloader/download mode

  3. Using Odin 3.11.1, flash T530XXU1BOL2_T530PHN1BOE1_HOME.tar.md5 (Found here, which should be the correct ROM for my model (Bought in the Netherlands, but I have no idea where you folks are pulling this T530XX stuff from, it's nowhere to be found on the back))

  4. Reboot tablet

After the 4th step, the tablet will be unresponsive for ~10 minutes (I think it's doing the whole "upgrading apps" thing that follows a new installation). After that, when I hit a certain area of the screen, I can hear the regular Android touchresponse, raising the volume also give the normal beeps and pushing the power button plays the "turning off screen" sound, but the screen stays active, showing the Samsung Galaxy Tab4 boot logo.

Soooo... Anyone care to take a guess what I'm doing wrong?

Personally, I think it might have to do with flashing the incorrect stock ROM, but for the life of me, I can't find out which T530-code I have. I've been flashing different ROMs, but no luck so far...

As for troubleshooting I've already tried:
  • The above procedure, afterwards flashed TWRP via Odin and flashed a custom ROM via TWRP. Same effect.

  • Variations of the above procedure, where I keep wiping the tablet after each step

  • Different custom ROMs

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