Nexus 7 - Android 4.3 - bootloader problem

Nexus 7 - Android 4.3 - bootloader problem

Posted on September, 04 2013 by milosz 

Recently I decided to upgrade my Nexus 7 to the Android 4.3 Jelly Bean, but quickly encountered InvalidState error when tried to update bootloader.

I downloaded Android 4.3 Jelly Bean nakasi - JWR66Y factory image (after using Paranoid Android  for a long period of time) and tried to update bootloader:

milosz@debian:~/nakasi-jwr66y# sudo fastboot flash bootloader bootloader-grouper-4.23.img 
sending 'bootloader' (2100 KB)...
OKAY [  0.271s]
writing 'bootloader'...
FAILED (remote: (InvalidState))
finished. total time: 0.407s

It is obvious that something is wrong with the bootloader image but do not worry as this check is only for safety reasons and device will work just fine.

Problematic bootloader 4.23 from nakasi - JWR66Y  factory image:

milosz@debian:~/nakasi-jwr66y$ md5sum bootloader-grouper-4.23.img 
5bdb2e87370cdb1a7ea14bb0c3e21390  bootloader-grouper-4.23.img
milosz@debian:~/nakasi-jwr66y$ sha1sum bootloader-grouper-4.23.img 
ce2951e59da64fa57d281f47031364050c83f49c  bootloader-grouper-4.23.img

Working bootloader 4.23 from nakasi - JWR66V  factory image:

milosz@debian:~/nakasi-jwr66v$ md5sum bootloader-grouper-4.23.img 
df53028033c9eccf4fe5ba7bc198ce24  bootloader-grouper-4.23.img
milosz@debian:~/nakasi-jwr66v$ sha1sum bootloader-grouper-4.23.img 
7b28b45a035efb9aad9e61ad09b1906eb5508721  bootloader-grouper-4.23.img

milosz@debian:~/nakasi-jwr66v$ sudo fastboot flash bootloader bootloader-grouper-4.23.img 
sending 'bootloader' (2100 KB)...
OKAY [  0.269s]
writing 'bootloader'...
OKAY [  1.969s]
finished. total time: 2.238s

Android 4.3 Jelly Bean is extremely fast on the Nexus 7. I experienced minor problems when tried to encrypt my Nexus 7 device (it will start to encrypt whole device only in the portrait mode(?)).