Hi everybody ,
my Usb-bricked mtd0.img generator is online here : http://ks33673.kimsufi.com/misc/
you have to provide your cid and your rom version.
it's a quick and dirty generator written in php, but it should work I did some diffs with a good mtd0.img and files generated and it's ok...
it's lite, so you can access it thru your device.
have nice unbricking...
source code included