Installation ------------------ Unpack the IMAGE file and copy the image an SD card: (assuming SD card at /dev/mmcblk0): # zstd -d slarm64-current-*-core-*-build-*.img.zst # dd if=slarm64-current-*-core-*-build-*.img of=/dev/mmcblk0 bs=1M or unpack directly to the card # zstdcat slarm64-current-*-core-*-build-*.img.zst > /dev/mmcblk0 Instalation eMMC/NAND/USB-HDD ------------------ download all files download rkdeveloptool place the board in Loader Mode. it can be done level the command in loaded system firefly: # dd=/dev/zero of=/dev/mmcblk1 bs=32767 count=1 restart the board, it automatically goes into MaskRom execute: # sudo ./rkdeveloptool db rk3399_loader_v1.08.106.bin # sudo ./rkdeveloptool wl 0x40 idbloader.img # sudo ./rkdeveloptool wl 0x4000 uboot.img # sudo ./rkdeveloptool wl 0x6000 trust.img to transfer a system with the SD to eMMC, you need to boot from the start and run the script: # transfer-to-disk Default Login ------------------ login: root Multimedia ---------- The video is played by the MPV player, which is configured with the default profile x11 (for playing divx/xvid) and the profile rkmpp (for playing h264/h265/VP9 720p,1080p) example: mpv --profile=rkmpp videofile.{mkv,mp4}