rkdeveloptool gives you a simple way to read/write rockusb device.let's start. compile and install 1 install libusb and libudev sudo apt-get install libudev-dev libusb-1.0-0-dev dh-autoreconf 2 go into root of rkdeveloptool 3 autoreconf -i 4 ./configure 5 make rkdeveloptool usage,input "rkdeveloptool -h" to see example: 1.download kernel.img sudo ./rkdeveloptool db RKXXLoader.bin //download usbplug to device sudo ./rkdeveloptool wl 0x8000 kernel.img //0x8000 is base of kernel partition,unit is sector. sudo ./rkdeveloptool rd //reset device