With unlocked PCM had a heck of time getting the calibration update to load. Took 3 times but did get it to go thru. Installed 93 tune with a few changes. Works great. Sending you guys my original PCM to get back online.

I did not try to tune it per say. I wanted to have original back up on my PC. I backed it up to Trinity. Transferred to PC? Plugged back into car. Would not communicate or start. Went back to PC and downloaded back to tool. Hooked up to car would not communicate nor start.

So I put the unlocked PCM in and car started right up. I am not going to hook up the Trinity until I get original fixed. There must be a lock out of original when someon tries to access it. ? News to me if the case.

2015 SRT Challenger. I was checking out new Trinity and had it write a backup. Went to restore and now will not communicate or start. Any suggestions.

I just had mine crash. Did a backup to see how things worked with Trinity. Now will not turn over or communicate. I guess I should have put unlocked PCM in first. Can I send you factory one to see if recoverable. Only had Trinity a few days. Car has lees then 3000 miles. Ugh.

Excellent

I am getting an unlocked PCM for my 2015 Dodge Challenger. Where are all the ongoing updates from Fiat/Chyrsler currently in the car stored and will they be lost with swap? To date since buying the car I have had three software updates.

Doesn't give one a whole lot of faith in the code when you see spelling errors like that on the first screen.