@lancastergps,

What version of the Firmware do you have.
The latest is 7.20

Have you tried these things??

How do I reset all settings back to factory defaults?
Setup > Reset > Reset All Settings.

How do I Hard Reset my GPSMAP 62?
Power the GPSMAP 62 off.
Press and hold the (Page) and (Enter) buttons simultaneously.
Press and release the (Power) button.
The GPSMAP 62 will begin the boot process.
Release the (Page) and (Enter) buttons after backlight illuminates.
When prompted "Erase all user data?", select [Erase].



Hidden Test Pages

Hardware/Software ID and Display Test:
GPSMAP 62 Powered Off
Hold (Enter) + (Power) to boot into diagnostic screen
Press (Page) to Open next test screen
Press (Quit) to Open previous test screen
Press (Mark) to Cycle camera screen On/Off (62sc/62stc)
Press (Enter) to Activate test options
Hold (Power) to Exit Diagnostic Menu


Error Logs:
Open the Trip Computer page.
Press (Right) until final Trip Computer data page is displayed.
Press (Up) > (Right) > (Down) > (Left).
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.
Repeat (Up) > (Right) > (Down) > (Left) to enter the Logging Control screen.
Press the (Quit) button to exit each diagnostic mode.