I read the whole thread to help me with my problem. It's getting better but still not working.
I am on kindle 3, firmware 3.3 canadian wifi only. The install works ok, the device reboot and show the 2012 logo. Then the screen flickers a bit, there is a dotted line in the mid lower part of the screen after few flickers, the amazon logo comes back and finally it loads in the normal system.
I have remove all root prior to also reset the kindle. I am using the latest system. I would love to make it work as it seems to be a nice system. Thank you to let me know what else could I try!