I have got a BT Vision DIT7421/05 from ebay, and open the box, connect the harddisk follwing is0-mick's HowTo PDF file, and found this BT vision box seems have a newer version.
it got NK.bin and etc.bin file, and when I use binmod -r BooterCE.exe, Error because file not found in the image
Could any one advcie, how could I reverse the firmware back to an older version?
and for some reason, I can not find any thing for J-tag the same palce in HowTo PDF.