I have an older unit that when I press the setup button doesnt show the secret menu. I took the unit out and it says the unit is 1 T0 035 680 B, SW 1120. Do you know which firmware updates I can use without bricking the unit? I have just updated the maps to version 9 and was hoping to get 7 digit postcode search but this isnt the case. I assume thats because its the original firmware?
Any help appreciated.
Thanks