Magellan GPS How do i update my GPS (Magellan Maestro 4250 GPS)?

SOURCE: I tried to upgrade my

if you still have the original DVD that came with the device, i think you can use that to upload them maps and other info, but of course this will just be like having the device brand new.

SOURCE: International Maps for Magellan Maestro 4250 GPS

If I am correct you can put it on the sd card
There should be a slot for the card on the unit .
also you can check on their web page .

SOURCE: how do i open my magellan gps-maestro 4250-to get

there are 4 screws hidden under the little black rubber plugs on the back of the unit...remove those 4 screws, then slip something small and flat (i use my finger nail) around the area where the back and front of the case meet...there are several snaps that hold it together that youll have to break loose to seperate the back and front....slowly seprate then and disconnect the screen ribbon from the main board...
the screen is only held in by little clips on the sides...just gently pull the case away from the screen in those areas and the screen will pop out

let me know if you need further help