My apologies if this is the wrong forum for this, it was no other ones seemed appropriate for these issues.
I have a Garmin Colorado 400i. Over the last year or so, it's had a couple issues. The basemap no longer appears, although my topo map on the SD card does. I also can not change profiles. I've tried doing a factory reset with no effect. I also have tried Garmin Express in the hopes that an update/rewrite of the firmware may help, but Express does not detect the device. Windows does, but says I should format the drive. I tried doing the diagnostic which shows that the ROM fails the test. I also tried this http://garmincolorado.wikispaces.com/Miscellaneous#toc12 but it says there's no usb device available.
Any suggestions? It may be a hardware issue, but, I wonder if the firmware is corrupted. If I can reinstall it, that may help. However, I cannot find any other ways of doing so manually.
Thanks for any help!
--Mike Simmons-