I accidentally flashed Android 2.3.6 Blur_Version.5.8.25.XT861.ACG.en.US from sbf.droid-developers.org/phone.php?device=15 on my XT862. It boots up okay, but I cant get ROM Manager or Safestrap to work.
So i want to go back to 2.3.4. I tried 5.5.959, 5.6.890 and 5.7.906 from URL mentioned above with RSD Lite, but i get "6/21 flash cdt.bin -> Phone returned FAIL" error.
I also tried using "1-CLICK DROID 3 SBF BY OVELAYER" but i get error "Preflash validation failure" when writing boot and recovery. (Everything else gets "OKAY".) After that the Phone boots 2.3.4, but I'm not able to install Recovery via ROM Manager or even Safestrap.
Does anyone have an idea how to fix this? Or is it not revertible and do i have to live with Stock 2.3.6?