Collin actually i didnt check i just rollback... i had to use the internet so i didnt troubleshoot at all...
I can tell you that before that idid my backup like always. Then upgraded it didnt work...
I did clearos and also factory_reset
Then the AP came up again normally. I tried upgrading again with no config. And happened the same... so i just rolled back and uploaded the backup...
Sorry i didnt look at the logs.
What i was thinking was opening a case tomorrow and trry again with the tac.
Cheers
Carlos