I don't take credit for this at all I just know it worked for me. Most of the info I got was from Robpol86's post on tdiclub.com so credit goes to him. There are bunch of discussions about the subject going on now on a couple of forums.
Obligatory warning: As with any electronics when you make firmware changes there is a chance of bricking your unit. If you don't accept that risk then stop reading now. Also playing DVDs while driving is dangerous and intended for passengers only. Just like texting/talking DON'T DO IT.
1. Download poweriso http://download.cnet.com/PowerISO/30...ml?tag=mncol;1 or any other CD/DVD image file processing tool. I used poweriso.
2. Download the Video In Motion file here. http://www.robpol86.com/index.php/Fi...IM_Berto89.zip There are 2 files in the zip.
VIM_berto.iso is the video in motion file.
RECODE_berto.iso is the file if you want to revert changes.
3. Open the file and burn a copy of the VIM file to a cd-r using poweriso.
4. Start the car eject any cd/dvd in the unit.
Press and hold Eject, Day/Night and Guide.
While holding buttons your screen will go black insert burned CD-R.
When it prompts you OK/Cancel on a white screen, hit OK.
It will reboot a few more times.
The head unit should auto-reboot when you remove the CD.
This worked for me on a CDN Spec RNS-510
Prt # 3C0 035 684 C