Updated firmware in June 2018.
No issues with update. Two years old and still best bike I have ever owned.
Updated July
after update odometer frozen at last firmware update. everyday range gets worse. Uses 40% more battery charge to do same trip as before. I didn't notice this right away but after a few rides noticed it was

worse after update.
Update end of July 2018 again:
Dealer had wrong type of motorcycle selected in firmware update. Fixed the update and now bike is better than ever. Total cost was two trips to the dealer to fix it. Lesson learned for me was make sure that your odometer works before you leave the dealer after the update.
Still love this bike.