RadioMaster ExpressLRS USB UART Flasher V2

Upgrade your ELRS firmware with ease using our simple and effective tool. The new V2 version features a USB-C interface, enabling you to connect the tool to your PC via cable. The new power button allows effortless power cycling with a single press, eliminating the need to struggle with cables while holding down buttons. Our streamlined design makes preparing your receiver for a firmware update faster, easier, and more efficient than ever!
When it comes to updating your ELRS receivers, you're faced with two options: Wi-Fi or Serial Port. While Wi-Fi upgrading may seem convenient, it can be unreliable due to network instability. This can result in a bad flash, requiring recovery with a UART tool. That's where the V2 ExpressLRS USB UART Flasher comes in, offering a reliable and easy solution for your firmware upgrade needs.
With the RadioMaster V2 ExpressLRS USB UART Flasher, your wireless connection won't be a concern. This dongle is specifically designed for ELRS receiver serial port upgrades, providing a reliable and easy solution for flashing or recovering receivers with a bad flash. 
Our USB flashing tool is a versatile solution, not limited to ELRS serial port upgrades. It comes with a range of connection options, allowing easy connection to our entire range of receivers. By switching between 3.3v and 5v, it can also be used for other devices requiring a UART interface. This versatility makes it a valuable addition to your toolkit, catering to all your firmware upgrade needs.
Features

Upgraded USB-C interface
Power button for easy ON/OFF power cycling
Reverse polarity protection
Over-voltage protection 
Switchable power supply between 3.3V and 5V
Standard 2.54mm pins
RM-CRSF JST-GH port for simple plug-n-play connection with RadioMaster ER series receivers
Pin sockets included
Dupont cables for convenient testing

Compatible Receivers
Using 2.54mm pin output and spring-loaded pin adapter or Test hook adapters:

All RP SERIES ELRS RECEIVERS

Using regular 2.54mm pin output (Servo plugs):

ER3C-i 2.4GHz ELRS PWM Receiver
ER5C-i 2.4GHz ELRS PWM Receiver
ER4 2.4GHz ELRS PWM Receiver
ER5A 2.4GHz PWM Receiver
ER5A V2 2.4GHz PWM Receiver
ER5C 2.4GHz PWM Receiver
ER5C V2 2.4GHz PWM Receiver
ER6G & ER6GV ELRS PWM Receiver

Please note: The second channel is repurposed as a TX for the serial port tool's RX port, while the third channel is repurposed as an RX connected to the serial port tool's TX port.
Firmware upgraded by RM-CRSF interface output:

ER6 2.4GHz ELRS PWM Receiver
ER8 2.4GHz ELRS PWM Receiver
ER8G & ER8GV ELRS PWM Receiver

Please note: The above receivers can be connected to the receiver's CRSF port using a 4-wire CRSF cable.
Firmware upgrade instructions

Connect the Serial Port Cable with the receiver
Connect to the computer with a USB extension cable, press the receiver's BOOT button, then press the POWER button on the serial tool
Follow the ELRS upgrade tool's instructions to complete the upgrade

Package Includes

1 * RadioMaster ExpressLRS USB UART Flasher V2
1 * Pogo Probe
1 * CRSF Wire 
1 * 2.54mm Serial Port Cable - Type B
1 * Serial Port Test Hook - White
1 * Serial Port Test Hook - Green
1 * Serial Port Test Hook - Red
1 * Serial Port Test Hook - Black
1 * User Card