that's odd. I used that one on my 4400 and it worked fine. Initially it didn't though, it was either my microsd card or the adapter that the radio didn't like.
I tried a new card and a new samsung adapter, went to disk manager and removed all partitions and created a new simple volume, formatted to ext3 (probably not necessary)
then ran the image with win32 disk imager.
put it in stereo, put everything back together and threw it in the truck, got the nex screen and then loading, and bam, software was up and running.
It was TONS faster with a better sd card. It took probably
