Thread: Transform a Nuvi 37xx in a Nuvi 34xx for dummies

Originally Posted by x-trail

@ webalf
From what I've seen on original 3490LMT, if you just copy only some of the attachment files, some of the already enabled features maybe disabled. So copy ALL of the files at the same time and then restart Nuvi.

Not all features are compatible with each other. For example if you enable Video player you will probably lose Blue tooth.
What features are enabled you can check by reading .System\Diag\html .