I spent about 4 hours trying to update my new Ampliti TT this morning.....I had absolutely no lock with PC, just kept saying error after attempting the update and leaving the Amplifi with all 4 tone lights lit.....tried all the instructions i was given and nothing...
I also spent a lot of time trying to update via iOS, still had no success.....UNTIL in the device selection screen from within the iOS app, even though the Amplifi is already selected I selected it again for Airplay...once I did this the update started downloading and installing.
Hope this helps save someone else all the frustration i have had this morning trying to update this product, I hope when playing it I soon forget the pain I have suffered to get this far.