the TX (Transmit) wire of your USB-to-TTL adapter to the RX (Receive) pin of the device.
Click Load Image and select your full firmware file OR a standalone bootloader.img if you only need to fix the boot partition. gxdownloaderbootv1032 hot
This version is known for its reliability when communicating with older or corrupted bootloaders. the TX (Transmit) wire of your USB-to-TTL adapter