2. Loader Mode

In Loader mode, the bootloader will waiting for host commands for firmware upgrades. To enter this mode, the USB is connected and the bootloader must detect a Recovery key press at startup.

1.1 Hardware to Loader

❶ Connect PC and development board with Micro USB cable.

❷ Keep pressing the Recovery key.

❸ Power the board until the windows PC shows Found One LOADER Device then release the Recovery key .

1.2 Software to Loader

❶ Connect PC and development board with Micro USB cable.

❷ Execute command in the serial debug terminal or adb shell.

reboot loader