jmp187
Junior Member
Hey everyone! I just did the upgrade from U4 8.4 inch screen to a used U4 12 inch screen. When I plugged everything in my phone connects to android auto and all the AC/hazard controls work fine but the screen is black. I repined the plug that goes to the back of the screen and didn't buy a conversion cable. I'm pretty sure everything is right since everything but the screen itself works but I attached pics just in case. The dash says LOCKED RADIO but from everything I've found the screen should still turn on and request the code?
