installed tune, can't read vehicle

[aber57]

I have a 2006 F450 6.0 Auto.
7165 Predator with 8r17.

Tunes have been in and working great for a while.
I restored original backup and then modded the 60 HP tune to remove speed limiter. I attempted install and truck will not crank over now. Turn key and get dash lamps but no starter operation. No PATS key on this truck, has the slender key heads.
Predator gives "can't read vehicle" message now.

The PCM/FICM program on this truck is not the latest inductive heat program, it is the injector buzz before and after run version.

Help please!

[mikel]

Please give us a call at the office with the tool powered up in the truck.

Thanks