: For direct USB flashing without an SD card, Windows users typically use RKDevTool (formerly AndroidTool), while Linux users use the command-line upgrade_tool .
You can find various versions of this tool as .rar or .zip archives from these community-archived and developer sources: : Available as a direct archive on Archive.org . Download rockchip create upgrade disk tool rar
: Often bundled within specific device SDKs or developer wikis like the Firefly Wiki . How to Use the Tool : For direct USB flashing without an SD
: Click Restore (or "Create") to format the card and write the bootloader and firmware images. How to Use the Tool : Click Restore
: Click the path button to select your device's specific .img firmware file.
: Insert your SD card into your PC and run SD_Firmware_Tool.exe as an Administrator .
: Choose the correct drive letter for your SD card from the program menu. Mode : Select the SD Boot or Firmware Upgrade option.