update.img.Important: Erasing
IDB(Initial Data Block) before flashing is highly recommended in v2.3.9 – use the “EraseIDB” button first.
Rockchip maintains an open-source repository for flashing tools. Look under the tools directory of rockchip-linux/rkdeveloptool or community mirrors. The Windows binary is often mirrored in the rkbin repository. rk android tool 239 download updated