There are a few instances in which it is necessary to perform a full reset on a Montana 700 series, including the following:
Not receiving a satellite signal
Restoring the factory default settings
Not functioning properly
The information and steps below will walk you through backing up your data and resetting.
Before Resetting
Performing a full reset can cause user data loss. User data is waypoints, routes, tracks, activities and geocaches.
It is recommended to back up important data with BaseCamp before resetting. For steps, see Related.
Performing a Full Reset
Power off the Montana
Press and hold Power until the LED becomes red (Top left front of screen), then release
Double-tap Power to start the reset
The screen will indicate it is resetting and display the progress, then shut off
Power the Montana back on normally
Select your language
The Montana 700i and 750i will display the option to Activate or Skip, select Skip. You will then need to re-pair and sync with the Explore app
The Montana is now reset and ready for use.