: Set the screen to turn off completely if a music pause button is pressed twice within two seconds. 3. Hidden "Factory" Settings
Once finished (Green checkmark), unplug the USB cable and plug in the HDMI and power. The first boot on an RK3188 with Android 10 can take up to 10 minutes (it is rebuilding the Dalvik cache). Be patient. rk3188 android 10
The RK3188 launched around 2013, primarily running Android 4.2 Jelly Bean. While it was a "beast" for its time, Android 10 brings significantly higher system requirements, including more demanding memory management and updated kernel needs. Official Support: : Set the screen to turn off completely