Thread: Running programs from SD on nuvi

I certainly didn't understood perfectly what you were asking for, also i simply wanted to make it clear about 'patching' so that his thread doesn't end up as a 'de facto' place for users to get help with that because of their difficulty getting protected devices into preboot to load a patched RGN. If you wish to load a higher version ORIGINAL firmware you can do that quite easily with a GCD file even if your device has USB hardware problems, regardless of whether the lower version is patched or not: Simply name the downloaded file from "nuvi25x9_880.gcd" to "gupdate.gcd" and place it in a folder named Garmin in the root of the microSD card, insert the card and turn the nuvi on. However if that present version of fw loaded (original or patched) is already V8.80 you may as well just load individual BIN files via txt commands. If you're wanting to know specific commands, or how to obtain the BIN files from a GCD, how to use Ldr.bin (boot.bin) etc. then please ask precisely what you need to know.