Thread: How to unbrick a nüvi - step by step guide

Thanks for the reply. In my backup GarminDevice.xml, I see "<PartNumber>006-B0972-00<PartNumber>" and "<Description nuvi 1390" so the HWID for my device is 0972. Now the rgn file created by GarminCure3 is 11041000630.rgn. As you said, both 0972 and 1104 could be 1390. I rechecked the instruction and found there are two difference 13xx gcd files. I downloaded the correct one for 0972 and it went through the update OK and now my Garmin Express and my PC recognizes it. Thanks for the help!