How to enter service mode BMW Navigation MK3 MK4 (hidden menu GPS diagnostic Mini Range Rover)

Hidden menu (service mode) in BMW GPS Navigation MK3 & MK4. Access diagnostic features and check GPS antenna, video module, telephone settings, sensors, display settings and more.
This diagnostic mode will help you with troubleshooting electronic issues with car stereo and navigation.
This device can be found in:
BMW 3-Series E46
BMW 5-Series E39
BMW 7-Series E38
BMW X-Series X3 E83
BMW X-Series X5 E53
BMW Z-Series Z4 E85 & E86
BMW MK4 GPS navigation can be found also in Land Rover Range Rover MK3 (2002-2012) and Mini One/Cooper MK1.
More at mr-fix.info/hid...
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[@iNarcis923]

Which means that signal sign from the bottom of the screen

[@josephcivita1450]

Yes I have the same problem I'll take press the menu button it goes back to menu

[@plamen247]

Could you tell me how can I activate menu "code"?

[@MultiAdriansen]

is this working on range rover too?

[@mrfixpl]

MultiAdriansen I can see that Range Rover uses the same navigation unit. Hidden menu should work as well.

[@tarasonemillion7371]

I can not go , when you press the menu button , goes to the main menu

[@NUBBY39]

Don't work