You do need to do some searching for yourself. All this basic info and help is available on Noeman. To fully expand on what has been said before including dasil's patient reply above:

The Garmin link for the current fw of the non-mtk chip [HWID 0972] was posted by lolypop000 above. Here it is again, along with the MTK [hwid 1104] version:
Code:
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Code:
Please Login or Register to see the links
All firmware current and recent is available here on Noeman: [Only registered and activated users can see links. ], as well as the perry site linked before by dasilvarsa.

And yes, to flash an rgn file made with [Only registered and activated users can see links. ], it is updater.exe that you can use, also available here: [Only registered and activated users can see links. ]. As stated above, you can also easily make the .rgn file from the .gcd file and flash it using Cure3. Look again at post #1 here. Just ensure that you press the radio button marked 'Original' this time using Cure3. If the non-MTK fw named 097201000620.rgn won't flash, it probably means you have the MTK chip. Make it again using the mtk version of the fw named 110401000620.rgn, or just check your HWID using [Only registered and activated users can see links. ] with the nuvi in pre-boot mode before you flash anything.