Edge 520 is about 1 year old, now I cannot connect to PC anymore. Device turns on when connected to PC, loads the battery but does not connect, does not show up on the PC. Already tried to force into mass storage mode following https://support.garmin.com/faqSearch/en-US/faq/content/PsxSBlFqTL57tN38aI6m29. This does not do anything different: I hold the LAP button, plug in the usb cable, but the Edge 520 turns itself on just like it always does!
Last time I connected about 2 months ago, where I upgraded to Version 12.10, have three different usb cables, which I used previously successfully.
????