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

Originally Posted by lolypop000

Yesterday friend and i try different procedure of flashing and we found out this.
If you flash from 37xx to 34xx and you dont clear nonvol satellite accuracy is 3-5 mts.
If you clear non vol and then flash 37xx to 34xx you have satellite accuracy problem.

Usually I clear nonvol ram before and after flashing. After flashing I cleared nonvol ram several times, and gps accuracy is 5-3 meters.

My case is the same - 3-5 m