I know is's been some time since the last post but I have to revive this post since I have a problem with the python script presented on this thread.
I followed the steps and tried two different original .img files from Allwinner, but I get the same error. I run the python script (Windows 8.1) everything looks good and it creates a "tmp.img". When I try to mount or do anything with this new .img file, I get the same error that it is corrupted. What could be the problem? am I doing something wrong?
Thank you guys! I really need to fix this cause I have a tablet with no touchscreen