Significant battery drain since latest update to v5.2 (which is the first update I have done since purchase in April 2019). Battery went from 100% to 55% in 1hr ride (I'm not running turn x turn navigation, purely tracking route). Turned it off/on when back home and battery then showed 92%. Within 2hrs at home with it just being on, it drained to 0%.
Map also just shows a black triangle on my current location, but doesn't display route ridden on map.
First noticed issues the previous week just after updating software when the Garmin "lost" a course I had put on there the previous day. Synced with phone to reload course, opened it, froze device and had to turn Garmin off/turn to get device to work. Subsequently rode the course and halfway through when I went off route, the turn x turn navigation gave up, and route ridden so far stopped displaying on the screen, just got the black triangle showing my current location. Battery drained to 0% in 2hrs
No changes to existing settings. Brightness is low. Never had battery issues previously and I normally ride all day. The Garmin is unusable now.
Anyone know how to backdate software to the previous version (v5.1?)