Quote:
Originally Posted by susmoka
Ookie, so I've successfully jailbroken my Kindle PW2 with Branch Delay's JB.
now I want to downgrade, but I still get the ERROR 11, ''The update was not successful'' when I try to install an earlier software version.
How do I get around this?
I put the .bin firmware file to the root of the Kindle, then try to restart to update, but it doesn't work. My Kindle is jailbroken now, so is there anything else I need to do to downgrade? Any help would be appreciated. Thanks!
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DO NOT DOWNGRADE TO A FW VERSION EARLIER THAN THE DEVICE WAS INTRODUCED WITH!
Clear?
And be careful about the PW-2, there are 2Gbyte and 4Gbyte models - it makes a difference.
The brief outline (not step-by-step) -
Use KindleTool to unpack the desired Amazon update_*.bin
Bring up Kindle in its 'other' operating system 'diags' (these Kindles are dual-boot systems)
Using ssh or telnet or over serial port - copy the rootfs.img file to /dev/mmcblk0p1
(there is now a special r/w/verify script for the purpose)
Delete the contents of /var/local
Note: you will lose your JB in the 'main' system once the above is done.
So you will have to manually JB the newly installed 'main' system while in the 'diags' system.
You might also want to read the thread about recovering a Kindle using fastboot -
and make sure you have that understood (you will need the serial port hook-up to use it).
OR
Test NiLuJe's factory initial firmware install package for him (do by PM please).
And you had better have ssh/telnet access to 'diags' system and/or serial port when you test it.