Mine got stuck again at boot today. Wiped and installed, restored from backup. Happens once a week lately. I used the official instructions to take it back to .72 but it's not any more stable.
A3 Recovery: http://www.amiko-a3.us/wp-content/uploads/2014/08/A3-System-Partition-Restore-ROM-Instructions.pdf
A3 Recovery: http://www.amiko-a3.us/wp-content/uploads/2014/08/A3-System-Partition-Restore-ROM-Instructions.pdf