sudo rkdeveloptool ld
sleep 10
sudo rkdeveloptool db rk3399_loader_v1.27.126.bin
sleep 20
sudo rkdeveloptool ef
sudo rkdeveloptool ef
sudo rkdeveloptool ef
sudo rkdeveloptool ef
sudo rkdeveloptool wl 0 .img/rock-pi-4b-plus_bookworm_kde_*.output_512.img
sleep 7
sudo rkdeveloptool rd