Master reset for a GPSMAP 192c/198c

Warning - Performing a master reset will erase all saved user data such as waypoints, routes and tracks that have been saved in the device. For instructions on how to backup user data, please see Related Content.

To perform the master reset, please follow these instructions:

1. With the device powered OFF, press and hold the Quit button
2. While holding the Quit button, press and hold the Power button
3. Continue to hold both buttons until the message "Do you really want to erase all user settings?" appears, then release both buttons
4. Highlight Yes and press the Enter button

The device will now restart. When it fully boots, the device will be set back to factory default settings.