Quote Originally Posted by VitusOld View Post
..... Tell me, please. What do I do?
One of 2 things:
1. Turn to Garmin for help, because you have damaged your NV memory as I'm sure you already know. If the unit's out of warrant that will be expensive; or:
2. Hope that someone with the knowledge is willing and able to give you that 'expert assistance' to help you regain your 'model number'. This should not be dealt with in open forum and you can only hope for a PM offering help.

BTW, my tirade in the post above yours was not directed at you personally, but the potential for misuse of nv backups both ways is real.