All (NOT ROOT INSTRUCTIONS)
I am in no way trying to steal anyone's thunder but I wanted to update HOW to get back to a working JB if you get errors or try to roll back to ICS (which we all know you shouldn't do). I have read many threads and tried so many variables to now have a perfect solution. This spawned from
d4vr0s --> Soft Bricked after reverting from Jelly Bean update
If this is a repeat in any way moderators, feel free to delete this or revise as necessary. I want to thank everyone who has done work on the JB project as I don't know them all...
Tested on Droid Razr XT912 US - Verizon. I used the following to update to JB -
[Leaked-Ota][Cdma][4.1.2] Jelly Bean 98.72.8 (12/27/12) - xda-developers
All hell broke loose when I tried to re-root (with methods that WERE WARNED) and blew up/bricked/softbricked my razr.
BEFORE DOING ANYTHING
1. Have a copy of Blur_Version.6.16.211.XT912.Verizon.en.US on your external hard drive. Make sure it is a fresh/clean copy.
Dev-Host - Blur_Version.6.16.211.XT912.Verizon.en.US.zip - The Ultimate Free File Hosting / File Sharing Service
2. Download MD5Checker here -
MD5 Checker - CNET Download.com and make sure the hash = "c8772dc305d0de94d6e977fb51f3eac5"
FIX TIME - Phone running on battery only, no USB cable plugged in!
1. With a lovely FUBARed razr/maxx boot into Recovery mode
2. Run "wipe data/factory reset"
3. Run "wipe cache partition"
4. Select "apply update from external storage" and select "Blur_Version.6.16.211.XT912.Verizon.en.US.zip " (should take about 5 minutes)
5. Select "reboot system now" and hold both volume buttons to get back into Boot Mode Selection Menu (0A.77)
Where mine kept failing
6. Select "Normal Powerup" (else it will get stuck in a failed AP Fastboot due to the boot.img not loading properly, AP Fastboot Flash Mode (S) (Flash Failure))
The only pain (since boot gets corrupted) is that if you reboot your phone you have to go into recovery and select "normal powerup" every time.
There you go, 18 hours testing to about 10 minutes of typing. If this helps one person that's all that matters. If anyone has issues regarding these steps AFTER TRYING, please let me know, and I will do my best to assist you.
Camo