after a failed upgrade with CCA 2.2.5 CUE is not comming up. It say's Wating xyz... where xyz is counting up (aprox. 30 min's) until a watchdog interrupt comes and reboots CUE. I'm able to get into the bootloader, but I dont now what to do. Searched a litttle bit but did not found any document on this. What can I do? How can I restore to factory defaults?