Hi Wojpen.
I have a Huawei G750 U10 working on Android 4.2.2 and i've catched all items from your 1st post of this thread including of course sys.txt file in there.

The problem is that screen becomes black, but program is working on background, because touching screen there's sound beeps from touch. Even i could not complete initial Igo settings, because after to choose language became black.

Sometimes i can recover image if i recall igo again, but nevertheless on navigation way (seted up an address) becomes black screen.

What can be done to solve this issue? Any idea?

Thanks

Begui Prime