Hi Malaysk, hi guys!
I think i have the same problem!
I installed latest rk3188 1024x600 ROM on my "Joying" unit, and everythin was fine.
Then i played with Xposed and modules, the first black screen i get when i changed the theme from "light" to "black" the screen immediately turns of, but the unit still works(play musik etc)
I cut the power and the Unit will boot, but the Malaysk bootlogo wont appear.
Then i noticed, when the unit is fully booted up, when i am pressing the "Media" hardware key the unit shows the bootanimation (Audi in my case) and nothing happen until i cut the power.
Then i deactivated all Xposed modules and the buttons works like normal.
But the most worst thing is, the recovery is also completly black scrren.
I think it will still work, because the buttonlights are flashing, and i tried a long press on powerbutton and the unit will reboot.
But i dont remember the the other entrys in recovery, so i cant install/reinstall ROM
Please can someone take a picture from recovery, so i will be able to try install ROM in blind mode?
thanks for help