Superchip 1855 problems!!

[Valvejob]

Long story short......I had a 6.0L in 2003, bought a Superchip 1855 tuner, worked great for a cheap mod. I sold the truck....but kept the tuner. Bought a 7.3L for a few years, sold that, And now I have a 6.0L agian.

Ok so my Superchip 1855 wont work in my newer 6.0L. It gives me the message T-2A. Has anyone had this issue?

The truck I bought it for originally was: 2003, 4 door, short bed, 4x4, 5 speed automatic, 6.0L.
What I have now is: 2004, 4 door, 4x4, long bed, 6 speed manual, 6.0L.

So it should work cause the chip covers that range of trucks.... the difference is the transmission and minor engine changes throught-out the years...hmm.

I've updated the chip through superchip.com as well...hmmm

One last thing....My 2003 had the newest FICM flash, my 2004 has the second to newest flash(the buzz /winter flash, it buzzes for one minute after truck is turned off). That could maybe be the issue, but doesnt the superchip tune the PCM not the FICM????

Any guidance would be awesome!! Thanks!!!