Built with the latest Rockchip Android 13 SDK
Kernel 5.10.157
Gapps
HDMI
Fixed Audio switching HDMI, HP, SPKs
Fixed controls in skyline, retroarch
Fixed inverted colors in videos/streaming.


Instructions: Download, extract update.img, flash with rkdevtools with the x55 in Maskrom mode. You can enter recovery by holding the left analog to the left or Maskrom mode doing that with a usb cable inserted.

https://4pda.to/forum/index.php?showtopic=1080306&view=findpost&p=127457348