Your Garmin help, please

Copy any activities off the Edge that you want to save and then try.

Non-prompted Non-Vol Clear – Clears NV and deletes all FIT files including Activities, Courses, Workouts.

1. Make sure device is off
   
2. Hold Lap/Reset and Start/Stop
   
3. Press and release the power button
   
4. Continue to hold only Lap/Reset and Start/Stop
   
5. Release Lap/Reset and Start/Stop when the Garmin Logo is cleared
   
6. The unit will restart and clear nonvol
   
   

This got my Garmin 800 out of its boot loop. I'd already copied the Garmin folder so just replaced all the files to get back my settings and it works. Edge 1000 or etrex 30 for me next failure device?