Thx, I do have the 9r28 CROM still around. But will it delete my original backup if I reinstall this a new CROM?

I am taking my Challenger in for service tomorrow, so I wanted to put the original back-up back on the car. When I plug the DS Predator in to the OBDII port, it boots and says: "The application is missing or corrupt"

Predator: U7135
Part#: 2005-20 DS LX &
Crom: 9r28
Car: Dodge Challenger SRT8

Help ...

OK, but I have an 09 Challenger, and tried to load the u7135-9r20.crom. That's when I got the unable to load error. I was able to go back to the 9r18boot that DS had sent me. But why can I not load the 9r20? It doesn't make sense.


Update: OK, after re-installing the 9r18boot crom I was able to ...

Thanks Mike. That worked perfectly. You ROCK!!

Do I need to try to load u7135-9r12 first, and then try 9r18? Or is there a known procedure to get this thing working again? It had 9r17 on it before I tried to load 9r18, and I thought I followed the procedure correctly. But it stopped loading at packet 7747 of 8587, and now when ever I try to boot ...

I just tried to install the 9r18 CROM into my new Predator U7135, and I get the same error. What do I need to do?