RadioMaster ExpressLRS USB UART Firmware Flashing Dongle V2

The RadioMaster ExpressLRS USB UART Firmware Flashing Dongle V2 is a top - notch tool for flashing and recovering ELRS receivers via the serial port. It's a stable substitute for Wi - Fi updates. Compatible with many ELRS receivers, it's essential for reliable firmware management. Assembly is required. **Features**: It has an RM - CRSF JST - GH interface output, multiple protective circuits including overcurrent and reverse polarity protection, standard 2.54mm pin compatibility, selectable 3.3V or 5V output voltage, a spring - loaded pin socket for convenience, and comes with DuPont wires for easy testing. **How to upgrade firmware**: First, connect the serial port cable to the receiver. Then, connect it to your computer using a USB extension cable. Press the receiver's BOOT button and then the POWER button on the serial tool. Finally, follow the instructions of the ELRS upgrade tool to finish the upgrade. **What's included**: 1 RadioMaster ExpressLRS USB UART Firmware Flashing Dongle V2, 1 1.25mm Serial Port Cable - Type A, 1 2.54mm Serial Port Cable - Type B, 4 different - colored serial port test hooks, 1 Pogo Probe, 1 CRSF Wire, and 1 User Card. Browse all Radiomaster and ELRS products.

Using the RadioMaster ExpressLRS USB UART Firmware Flashing Dongle V2 is easy. First, gather all the included parts and assemble them as required. To upgrade the firmware, connect the serial port cable to the receiver and then connect it to your computer with the USB extension cable. Remember to press the receiver's BOOT button and then the POWER button on the serial tool. Follow the instructions from the ELRS upgrade tool step - by - step. When using the dongle, handle it gently as it has delicate components. Keep it away from moisture and high - temperature areas. After each use, store it in a dry and safe place. The DuPont wires and other accessories should be neatly placed to avoid damage. If you have any problems during use, refer to the user card that comes with the product.