After the latest update my Forerunner 945 does simply shows Converting GPX files and never completes the boot. I can manage to pull up the menu to "Reset to default settings", but the pressing Start button on the "yes" option results in a beep but no reset follows. I can continue browsing this "menu".
I've tried every reset trick in the book, but the end result is the same. Connecting to the computer also does not reveal anything.
Fun sidenote - there were not GPX-s loaded on the device...
Ideas are welcome.