Thread: Convert 3790/3760/3750 to 3490

Originally Posted by Kanopus

Missing model number means that NVM is damaged. I think writing backup of region 41 would be enough.

Sure. I know. Sadly, but I don't have. When I made a backup it was too late. Maybe will help clearing (filling with ff) the whole region 41?
Or maybe it's possible to fix it restoring HWID in NVRAM?
But looks like it's not the one issue. There is another problem. Each time Nuvi power ups each time it asks for region, language, EULA. I think it can't write settings in NVRAM.