Thread: nuvi 2597 non-responsive after patch to use unlocked maps [wrong fw used]

Originally Posted by catymag

Flash official gupdate.gcd by Webupdater, clear non vol, backup your nuvi and restart from scratch, reading carefully starting post (and post n.2 if needed).

Thanks for the great attention and help .I'm a beginner in this business ;if I can get a detailed explanation I will be so grateful.
1.How to flash the gupdate.gcd
2.how to clear nonvol "I have no touch function" so can't do it from my device
3.How to restart from scratch

Again thanks for your attention to my problem