I have a Kingbox K3 (S912) 2/16GB Wi-Fi HS2734A
I have tried several slimbox and M96X ATV plus 4chip ram, when using USB tool to install successfully,
When i plug it in, i cannot display the image.
Light source on, optical port indicator on, but not outputting HDMI and AV signals.
Please give me advice or ask for some ROM for this box.
Thanks