new firmware for old GPS ?
Is it possible to update the firmware of old device to show the screen layout of the new one.
Basically when you have a destination configured with a new one, you can see remaining distance at the bottom corner and still see actual speed on the top corner. With my old Nuvi 770 and my 255, you lose ''actual speed'' that is replaced by remaining distance at the bottom left when you set a specific destination. You can go to the speedo screen but you lose the map directions....I'm using the GPS as a ''head up'' metric speedo for my SAE car....
I want to confirm if it is something related to the GPS unit or to the firmware or something else ? If it isn't related to the specific GPS, is there a way to upgrade older unit to make it work like the new ones ?
I ask because when i installed the 2015 map, it also started showing speed limits at the same time....
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