Click the browse button and select your patched .bin firmware file.

Back up the existing flash memory and channel configurations from a working receiver. Why Do You Need the "Patched" V1 040 Version?

Run the software inside a Virtual Machine (like VirtualBox) or a dedicated "offline" PC that contains no personal data.

Open gxloader.exe from the extracted folder. Configure the following parameters based on your chip variant (most commonly GX6605S):

The target device must be connected to a computer. This is typically done using an RS232 serial cable, a 3-pin mini-jack serial connection, or a USB-to-TTL serial adapter (such as the CH340 or PL2303 chipsets) connected directly to the motherboard's TX/RX pins.