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 ELRSF 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.
![Radiomaster ExpressLRS USB UART Flasher V2](https://cdn.shopify.com/s/files/1/1349/4827/files/01_8603b37c-39b9-42f4-bbfe-9e858253abe5.webp?v=1717721161)
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
![Radiomaster ExpressLRS USB UART Flasher V2](https://cdn.shopify.com/s/files/1/1349/4827/files/ELRS_Flasher_V2.jpg?v=1717721287)
Compatible Receivers:
Using 2.54mm pin output and spring-loaded pin adapter or Test hook adapters:
All Radiomaster 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
Dimensions:
![Radiomaster ExpressLRS USB UART Flasher V2](https://cdn.shopify.com/s/files/1/1349/4827/files/09_480x480_61463505-ab95-4190-96ab-a430fd9b9457.webp?v=1717721565)
![Radiomaster ExpressLRS USB UART Flasher V2](https://cdn.shopify.com/s/files/1/1349/4827/files/08_34a0b314-67b6-412b-97c1-d7d911622276.webp?v=1717721595)
Includes:
1x Radiomaster ExpressLRS USB UART Flasher V2
1x Pogo Probe
1x CRSF Wire
1x 2.54mm Serial Port Cable - Type B
1x Serial Port Test Hook - White
1x Serial Port Test Hook - Green
1x Serial Port Test Hook - Red
1x Serial Port Test Hook - Black
1x User Card