Thanks!
I did solve the problem of the black screens, but without flashing older firmware.
I bought an X3 screen (latest partNo.) Which is APIX2 and I modified it a little bit to fit in my e8x housing.
Problem solved an having better screen quality now
Still having two problems with the EVO, which both have to do with coding.
1. EVO forgets what was saved under the favorite buttons every time after coding.
2. Every time after coding the unit reboots, but I'm not able to connect again until I wait until the car goes to sleep. DHCP problem?