I've got this working on a Kindle Paperwhite (1st gen, serial B024). Firmware is 5.3.5.
The problems are:
* When unplugged the screen flashes about 30-40 times. It's like it's stuck in some epaper refresh loop. After a bunch of this flickering it stops and shows my 758x1024 image.
* When plugged into a charging cable the flashing just never stops.
I've searched through all these forums but didn't find any clues or other posters with the same problem.
Anyone know how to fix this? Here's a copy of the image I'm using:
https://i.imgur.com/HaPAwuD.png