Bought Edge 830 in November from US Amazon. had to travel to India by December. did couple of rides was fine till Feb. fell ill for 2 weeks could not ride till march, previous week on my last ride on 14th of march ride, GPS did not start inspite of restart the device on the ride. time on the unit is different I also don't know what time time zone it is taking. did all issue fixing by connected to gaming express updated the software, reboot the unit, factor reset done, reinstall the gaming connect App on my iPhone 10XS. but my problem is not resolved.