Hello all,

this is my first post on this forum. I'am French and i explain my problem.
I have E39. In last year y update my navigation computer.
Old computer are MKI with 4/3 display (color) with TV tuner (old version) and new system are MKIII with 16/9 display without TV (y unplugd TV modul).

I purchase this new computer on Ebay, after installation, i upgrade software in lastest version and all works fine, but, GPS speaking English on German. AND display (small display in pannel with check control) are in English.

In last month, i went to bmw dealer for inspection for my car, and i ask to change English speaking for French speaking with DIS. No problem for BMW dealer.

BIG problem after, BMW break my MKIII computer, display are black screen. All works fine (radio CD) but display in black.

I downgrad with v24, V21, V17, downgrad are ok (cd in mode 2), but display are black...

I build interface for navcoder, Navcoder works fine (i plug it to CD charger) i see all parameters, and MKIII configuration, but display is black....

I test for me all possibility, i read a lot of post on this forum, i test unplug batterie and fuse, but, display is Black....

I deseperate to repair it.... If you have any solution....

Many thanks for your help....