It will gently shut down the Raspberry Pi's Linux operating system when pressed. This guarantees that caches and data are correctly flushed to prevent SD card corruptiongeometry dash lite. It thus starts a software shutdown process rather than a real power outage.

I inserted a line to the target / linux / rockchip / patches-5.4 / 001-rockchip-rk3328-Add-support-for-FriendlyARM-NanoPi-R.patch file that reads: soccer random
"Okay" is the state of the UART1; +;
UART1 is operational at the moment.