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Original Range Rover OS, Mode2Form1, contains Mk3 version 3-1/32

This is the last version ever released for the Rover nav system, and dates fro April 2003

NOTE: check your OS before updating. Look in the top right of the Settings screen
If you already have 3-1/32 then do not try an update because it won't change anything, and carries the risk that you will break the nav