Some exclusive features of the RK3188 Android 5.1 firmware include:
Go to Settings > Developer Options > Force GPU Rendering . Enable it. Also, turn off "HW Overlays" to fix UI flickering common in cheap RK3188 displays. rk3188 android 51 firmware exclusive
: Users report that the 5.1.1 firmware provides a noticeably smoother and more reliable UI compared to older versions. Some exclusive features of the RK3188 Android 5
: Features a low-latency audio input design and support for multi-channel audio mixing (5.1 and 7.1). Developer Options >