Here you are: [Only registered and activated users can see links. ]
How to use it:
1) Take a clean SD card, copy Garmin folder from the archive to the root of the SD card.
2) Insert the SD card into your Garmin device.
3) Flash RGN file from the archive. (You said you were able to flash firmwares so I don't explain it in detail).
4) Wait 5 minutes.
5) Extract the SD card and post SD:\Garmin\Updater\0943\update.log here (while erasing your UnitID here).