t87a - 2019 camaro 10speed

Sent a tcm to get unlocked.

Installed it, now I don't have PRDL and have some codes.
Dash keeps prompting to put in park, but there is no indicator - like when you install a new 6l80e and the tcm needs programming, a fresh/blank tcm.

I haven't tried to flash it, read it again, etc, just installed it and wanted to see if it worked. It doesn't.

Any suggestions?
Any procedure I'm not aware of maybe?

I have an mdi and stuff, so i can perform a procedure if needed.

thanks,
Allen

Did you follow the TCM rewrite procedure using the scanner?