After success, disconnect, power off, remove any shorting wires, and reboot.
Ensure your RS232 cable matches the receiver's pinout (usually TX, RX, and GND). If the tool hangs at "Found Serial Port," try swapping the TX and RX wires. Port Settings:
Revives dead receivers that no longer boot up normally.
Typically, gxdownloader is associated with (e.g., S905, S912, S922X), which power many Android TV boxes, single-board computers (e.g., ODROID-N2), and embedded devices. This tool is used to flash bootloaders, recovery images, and full system partitions via USB (USB Burning Tool mode) or UART.