Originally Posted by dsmid
Solaris81, you should be able to make the 4.1 backup the same way you flashed the demo unit, just use dd in the opposite direction - if=/dev/mmcblk0p1of=/mnt/us/mmcblk0p1.img, I'm not sure about the kernel offset though.
I've used this method to extract the 4.1.0 from my silver kindle, and then flashed it to the black kindle without the kernel. And.....
Fully working registered black kindle 4. Thanks for the advice and thanks anyone who posted in this topic. Now we all know the black kindles need to be at 4.1.0 to connect.
Happy New Year.