g20 key not recognized after flash

[dee91]

Hi
Ive got a g20 that is currently having a few issues with the gearbox(will be posting for help on that separately). Ive flashed the gearbox as well as the dme and a few other modules today just to see incase it was a software error and now the key wont start the car even though when i read the key using ista it matches the vin of the car and is showing as enabled.
Ista has 2 errors ive never seen before and was wondering if anyone has come across anything like this before.

8040F1 Crypto data in a key
8040F2 Ring aerial: Fault in reserve remote key teach-in


for now i have disconnected the battery and will try again in the morning but thought id ask just incase

thanks