Work was started on a reference file for the NS-DV earlier this year, but LJ scrapped the project because of the aforementioned checksum problem. The NS-DV simply won't load modified firmware.
Originally Posted by origami
I was actually wanting to ask two things though...
1) how did you get the firmware off the X20
2) do you know if the X20 uses a checksum (ie, would the NS-DV version of H3mod work on the x20?)
The firmware was obtained though the iriver website.
The X20 is just like the NS-DV. If it's running anything above version 1.104, it has a checksum.