4L80E Stock file with 01250003 OS?

[Longslyde]

I've been searching for a 4L80E stock file on OS 01250003 for a while and so far no luck. I found a few old threads that had some info, but no 4L80E's. Trying to finish a transmission swap on a Firebird and thought I would ask if anyone has a file archived they could maybe share. Trying to avoid a whole OS swap if I can. Thought I'd give one last try in case someone had a file. Thanks for your help in advance!

[Longslyde]

Still looking for a stock tune file with OS 01250003 equipped with a 4L80E. Thanks in advance!

[ScarabEpic22]

You cannot segment swap a Custom OS in EFILive (at least last I checked, and I doubt this would change). Last update to the LS1 COS documentation was 2014.

Take your base OS (assuming 12202088), segment swap it to 4L80E, then do the upgrade to COS 01250003.

If you don't have the stock file or can't find an 80E segment for OS 12202088, it may be simpler to go to the 02 OS 12212156 (with COS 02020003 or 02020005) as manual/4L60E/4L80E transmission segments are readily available.

[Longslyde]

Thanks for the info ScarabEpic! Appreciate the help!

[joecar]

+1 on what Eric said.

[Longslyde]

I downloaded OS 12212156 and updated the calibrations and segment swap. I haven't loaded 02020003 COS to the vehicle yet, but plan to in the next week or so. Then I'll throw the calibrations at it and see if there's joy. Thanks again guys! ...and thanks for deleting that scammer post in this thread also. Hopefully that guy's banned!