I'm new to this forum. I need some assistance.
I have a 2001 BMW 740i. The navigation display is blank and has white lines flickering on it. The back light works on it. I have been reading this forum and I tried to troubleshoot what is wrong. I believe I have a bad navi computer. I believe I have a MK2 system. The weird thing is that, sometimes it random works for a few minutes and goes back to the blank screen. I have tried to update the OS but no luck. When I put in the disk, the on light just keeps blinking and and the cd in light does not light up. Also, the disk ejects. I'm not very knowledgeable about BMW as this is my first one. I'm trying to fix this myself and at the lowest cost. If anyone out there have any suggestion or advice, I will greatly appreciate it. Thank so much for talking your time reading my situation and thank you in advance for your help.