Rk Android Tool 2.3.9 Download Link -

: Use the "Firmware" button to select your .img file or "Load Config" to set up individual partitions. Flash : Click Upgrade or Run to begin the process.

You can find historical releases like v2.39 in repositories such as respeaker/rkbin or rockchip-android/RKTools . rk android tool 2.3.9 download

This is the specific mode Rockchip devices need to be in to accept a flash. : Use the "Firmware" button to select your