Thanks for the responses - it's sounds like it should be as easy as I thought then & something that I could easily sort myself if I had the dongle.
I would have pushed the dealer harder & maybe left the bike, but need/want to keep riding & they were not giving me a lot of confidence that it...
Hi & Happy New Year everyone,
I own a Trek Fuel eXE with the TQ HPR50 motor & have recently taken the bike into my nearest Trek dealer to have the firmware updated.
The dealer is unable (& does not know how) to update the TQ HPR range extender - they have updated the motor, display & battery...