Hi Guys, I had a ntg4.7 menu,some moths ago my Becker module stopped working, and some days ago suddenly my ntg4.7 menu changed, now have only audio, telephone and system. Navi menu is gone plus my reverse camera doesn't work anymore, I connect my mobile Bluetooth only can receive the calls but not the music. Anyone know how to solve this issue will be a big help.
Note: the engineering mode in my car is different than the other car which I saw in YouTube.


Note: the engineering mode in my car is different than the other car which I saw in YouTube.


