[Q] Moto 360 not updating to 5.01, Metallica-userdebug 4.4W topic

Hello,
Purchased the Moto 360 from craiglist. (bad idea) but firmware will not update to 5.01 via OTA.
Build number is Metallica-userdebug 4.4WKGW18B.M194745 test-keys
I heard that this maybe in factory debug mode which will not update.
Is there way to update it besides custom ROM. (USB cable)?

With current firmware, Facer and Watchmaker does not work. (one of th emain reason that I purchase the Moto 360)

Any insights will be helpful and appreciated.


Thanks