Downgrading Firmware & Map Sets

On a Garmin device, the units operating software is in protected storage and is not backed up when you do a Mass Storage backup.

Firmware must be reinstalled into this protected storage via the gupdate.gcd file and the devices built in bootstrap software.

Ok thanks. I was afraid you may say that. In the old days, one could download the firmware file and use loader (I think) to re-install but now that it's done via these web update tools, there doesn't seem to be a place to download the firmware files and store them for future use (or is there a way?).

You can back up and save the Gupdate.gcd files for different firmware versions. That (usually) makes it possible to backlevel to an earlier version as long as your device is still bootable.

There's several previous firmwares that can be found here http://gawisp.com/perry/nuvi/

Cheers

Ok, so here's the noob question of the day then (since it's been awhile since I've done this). Which utility do I use again for the .gcd file to get it installed?

Thanks.

I didn't realize someone kept these archived. That's great!

Thanks.

See the post "Reverting back to older firmware" by Pillowcase about half way down in this thread: http://www.poi-factory.com/node/38782. Note that if your nuvi is an older model, you would copy the Gupdate.gcd file to the \Garmin folder instead of the \.system folder.

Good stuff that I did not know.

Now it's coming back to me. Thanks for the link. I couldn't remember how to do this until now.

Thanks again.