Re: Garmin GPS Units Freezing or Turning Off?
My Montana turns off routinely. Seems that there is only so many operations it can handle in a row. About 200 is my guess. When you hit this limit it switches off and a turn on resets what ever memory limit has been smashed. On a big day of caching this can happen enough times to be annoying.
You can check the last error logs with the instructions from this page http://garminmontanagpsr.wikispaces.com/Diagnostic
Enter the Trip Computer application (Portrait screen orientation)
Press and hold the lower right corner of the screen (over the Menu Bar) > 5 seconds
A diagnostic screen will appear displaying a list of recently logged exceptions
The lower section of the page will display current memory usage and stats
Select an exception from the list to view register dumps for that exception
Use the back arrow to return to the list of exceptions and to exit this diagnostic mode
Let me know if this is helpful