Free UK Delivery on orders over £99*
Product Specifications
Product Details
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
Package contains:
- 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

Payment & Security
3DXR does not store or process credit card information.
All payments are handled securely by PCI DSS compliant payment providers.
Our systems are regularly monitored and screened for fraudulent activity.
Delivery & Returns
UK Delivery Options
Free UK Standard Delivery on orders over £99* (excluding certain items such as batteries).
(Typically delivered next working day, subject to courier collection cut-off times.)
- Royal Mail Tracked 24 – Next working day delivery for orders placed by 16:00 (4pm). Fully tracked.
- DHL Express Next Day – Next working day delivery for orders placed by 13:30 (1:30pm). Fully tracked.
- *Free delivery excludes batteries, oversized items, and remote UK areas such as the Highlands due to courier surcharges.
International Delivery Options
- DHL Express (Air) – Fast delivery to most European countries (often next day). Same-day dispatch for orders placed by 13:30 (1:30pm) UK time. Fully tracked.
- DHL Economy (Road) – Cost-effective alternative to Express, suitable for non-urgent orders. Fully tracked.
UK Returns
Unused items in original condition can be returned within 14 days for refund or 30 days credit refund.
Please refer to the full Returns Policy for further details Returns Policy – 3DXR
International and B2B Returns
Please refer to the full Returns Policy for further details Returns Policy – 3DXR
All returns must be authorised by 3DXR before being sent back. Please email info@3dxr.co.uk to request confirmation.
FAQs
Contact us by email at info@3dxr.co.uk with any questions you have about this product.
Recently Viewed