Monday, August 29, 2016

Can't get MM-based roms to work (LL-based roms run fine)

So I've been trying to update my Shield LTE ROW since this Friday from the stock based rom LL (version 3.1.1) to the MM-based rom (version 4.2) and spend a dozen of hours failing to update :crying:

When I install a MM-based rom the shield boots and the nvidia logo shows a few seconds and then the screen goes black. When the tablet is attached to my pc I noticed that the tablet is not turned off but booted in APX-mode.

These are the things I've tried:
  • Installing the recovery image 4.2 (fails)
  • Installing the recovery image 4.1 (fails)
  • Installing the recovery image 4.0.1 (fails)
  • Installing the recovery image 3.1.1 (works)
  • Installing several full and incremental OTA updates to 4.x (fails)
  • Installing CM 13.0 (fails)
  • Installing carbon 5.1.1 (works)
  • Followed the guides mentioned in topics: http://ift.tt/2c3fWNj and http://ift.tt/1R1rUpe (fails)

I've tried a lot of things, but now I'm out of ideas.

Has anyone a explanation why MM-based roms don't want to boot on my tablet? And has the knowledge to fix this?

All feedback is welcome and appreciated.


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