Help! Cant go back to original tune!

[Naweed101]

So I had the mpg booster tune in my 2005 chrysler 300c 5.7 and my original backup saved. today I go to install the original backup and when I get to the point when it says turn key too off then on it messes up and says PCM:bootup string missing/VPP issue?? help plz!

[mikel]

this can be an issue on early 05 models, the tool will need to come in for a quick fix.

[Naweed101]

is there anyway I can get the original tune in without the tuner?

[mikel]

the dealer could...