Thanks for that. Have conifrmed in SERVICE MODE/VERSION that the deck is at v1.28 6/8/16. The MENU/ENTER + STOP command to get into SERVICE MODE is not documented in the User Manual which seems like a strange ommision to me.
I'm now in two minds about updating to v1.31 as they deck is performing with Windows 10 & USB which was my big unknown. The advantage of v1.31 is recording songs for up to 400mins as opposed to 99mins.
BTW, the update reads as a two-stage procedure:
1. Flashing the ROM via MENU/ENTER + REC then power off & back on to complete the software update
2. Enter SERVICE MODE again & select INIT MEMORY which sets all the system settings to the default values