@ kunix

That is what I meant - flash filesystem with filesystem header. (Alexander's method) Very cleaver way!!! 99% is fixing rebooting/freezing if the problem is coming from the memory - problematic files, corrupted FTL (I am calling the filesystem - FTL , bad formatting etc. Think it is much better than patching and playing with the main firmware. I see that you also know the method. That's nice.

Have a feeling everything is located in the memory - x-loader, bb, nvm etc in nuvi 265w. What other place can be located?

@ SiamMarine

Don't know never seen an asian unit. But you can experiment.