I am having a problem trying to unbrick a Nuvi 1450. I have generated a cure firmware with GarminCure3, and when updating get the following screen

[Only registered and activated users can see links. ]

Followed by:

[Only registered and activated users can see links. ]

Which appears for about 20 seconds or so, and then finally

[Only registered and activated users can see links. ]

When I tried flashing the quickcure .rgn file, the update was successful, however, the GPS did not show up as drive(s) on the computer. Under Eject Media,m there was an entry for Eject USB Storage, but no drive letters and nothing appeared in diskmgmt.msc either.

I called Garmin support and they said that there was nothing they could do

Hopefully someone here can help.
TIA