Hello, after trying to update my Helix Floor carefully reading the instructions, I 'm stuck at the Factory Reset step. I restart my Helix Floor while holding footswitches 9 and 10, I see a message "Will reset global, UMD, ..." but after a few second I see the message "Boot Failure, Entered Update Mode !"   HW edit don't see my Helix now.   So I'm totally stuck at this step. I need some help to restore my system or to finish the update.