M11.) How do I master reset my Colorado?
Warning: This procedure will delete information (waypoints, routes, tracks, etc) from your GPS and settings may be set back to factory defaults.
1. Power the unit OFF
2. Hold down the two Soft Keys for 2 seconds
3. While continuing to hold the 2 Soft Keys down, press and hold down the Power button for an additional 5 seconds
4. Release all buttons, and select YES to the prompt asking "if you want to clear all user data?"
This form of reset does not seem to reset all of the settings to factory defaults, just a few of the basics like Time Zone and Language, the remainder of the settings are still taken from your existing profile files.
Once you have completed a reset remember to place the Colorado outside in a stationary position for 20 minutes in plain view of the sky so that it can rebuild the almanac before using it again.
Note: Holding down both soft keys and the select button in a similar fashion seems to do a similar reset to the Colorado. This may be a master reset that will also reset the profiles back to the default -- needs further testing.
Här har jag hittat lösningar till GPS.
http://garminoregon.wikispaces.com/Miscellaneous