{"id":9859,"date":"2024-01-11T22:15:30","date_gmt":"2024-01-11T20:15:30","guid":{"rendered":"http:\/\/originhobbies.com\/?post_type=product&#038;p=9859"},"modified":"2026-04-09T05:49:45","modified_gmt":"2026-04-09T03:49:45","slug":"radiomaster-expresslrs-usb-uart-flasher","status":"publish","type":"product","link":"https:\/\/originhobbies.com\/de\/shop\/radio-control\/radio-receivers\/elrs-protocol\/radiomaster-expresslrs-usb-uart-flasher\/","title":{"rendered":"RadioMaster ExpressLRS USB UART Flasher v2"},"content":{"rendered":"<p>RadioMaster ExpressLRS USB UART Flasher v2 provides a reliable alternative for flashing your ELRS receiver.<\/p>\n<p>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!<\/p>\n<p>When it comes to updating your ELRS receivers, you&#8217;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&#8217;s where the V2 ExpressLRS USB UART Flasher comes in, offering a reliable and easy solution for your firmware upgrade needs.<\/p>\n<p>With the RadioMaster V2 ExpressLRS USB UART Flasher, your wireless connection won&#8217;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.<\/p>\n<p>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.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-11984 size-full\" src=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-1.jpg\" alt=\"\" width=\"1024\" height=\"573\" srcset=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-1.jpg 1024w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-1-300x168.jpg 300w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-1-768x430.jpg 768w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-1-50x28.jpg 50w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-1-18x10.jpg 18w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-1-416x233.jpg 416w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<h4>Features<\/h4>\n<ul>\n<li>Upgraded USB-C interface<\/li>\n<li>Power button for easy ON\/OFF power cycling<\/li>\n<li>Reverse polarity protection<\/li>\n<li>Over-voltage protection<\/li>\n<li>Switchable power supply between 3.3V and 5V<\/li>\n<li>Standard 2.54mm pins<\/li>\n<li>RM-CRSF JST-GH port for simple plug-n-play connection with RadioMaster ER series receivers<\/li>\n<li>Pin sockets included<\/li>\n<li>Dupont cables for convenient testing<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11990\" src=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-7.jpg\" alt=\"\" width=\"1024\" height=\"575\" srcset=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-7.jpg 1024w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-7-300x168.jpg 300w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-7-768x431.jpg 768w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-7-50x28.jpg 50w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-7-18x10.jpg 18w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-7-416x234.jpg 416w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-11985 size-full\" src=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-2.jpg\" alt=\"\" width=\"1024\" height=\"578\" srcset=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-2.jpg 1024w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-2-300x169.jpg 300w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-2-768x434.jpg 768w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-2-50x28.jpg 50w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-2-18x10.jpg 18w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-2-416x235.jpg 416w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-11986 size-full\" src=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-3.jpg\" alt=\"\" width=\"1024\" height=\"569\" srcset=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-3.jpg 1024w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-3-300x167.jpg 300w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-3-768x427.jpg 768w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-3-50x28.jpg 50w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-3-18x10.jpg 18w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-3-416x231.jpg 416w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-11987 size-full\" src=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-4.jpg\" alt=\"\" width=\"1024\" height=\"580\" srcset=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-4.jpg 1024w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-4-300x170.jpg 300w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-4-768x435.jpg 768w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-4-50x28.jpg 50w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-4-18x10.jpg 18w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-4-416x236.jpg 416w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11988\" src=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-5.jpg\" alt=\"\" width=\"1024\" height=\"576\" srcset=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-5.jpg 1024w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-5-300x169.jpg 300w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-5-768x432.jpg 768w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-5-50x28.jpg 50w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-5-18x10.jpg 18w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-5-416x234.jpg 416w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11989\" src=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-6.jpg\" alt=\"\" width=\"1024\" height=\"574\" srcset=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-6.jpg 1024w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-6-300x168.jpg 300w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-6-768x431.jpg 768w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-6-50x28.jpg 50w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-6-18x10.jpg 18w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-detail-6-416x233.jpg 416w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h4>Compatible Receivers<\/h4>\n<p><strong>Using 2.54mm pin output and spring-loaded pin adapter or Test hook adapters:<\/strong><\/p>\n<ul>\n<li>All RP SERIES ELRS RECEIVERS<\/li>\n<\/ul>\n<p><strong>Using regular 2.54mm pin output (Servo plugs):<\/strong><\/p>\n<ul>\n<li>ER3C-i 2.4GHz ELRS PWM Receiver<\/li>\n<li>ER5C-i 2.4GHz ELRS PWM Receiver<\/li>\n<li>ER4 2.4GHz ELRS PWM Receiver<\/li>\n<li>ER5A 2.4GHz PWM Receiver<\/li>\n<li>ER5A V2 2.4GHz PWM Receiver<\/li>\n<li>ER5C 2.4GHz PWM Receiver<\/li>\n<li>ER5C V2 2.4GHz PWM Receiver<\/li>\n<li>ER6G &amp; ER6GV ELRS PWM Receiver<\/li>\n<\/ul>\n<p><em>Please note: The second channel is repurposed as a TX for the serial port tool&#8217;s RX port, while the third channel is repurposed as an RX connected to the serial port tool&#8217;s TX port.<\/em><\/p>\n<p><strong>Firmware upgraded by RM-CRSF interface output:<\/strong><\/p>\n<ul>\n<li>ER6 2.4GHz ELRS PWM Receiver<\/li>\n<li>ER8 2.4GHz ELRS PWM Receiver<\/li>\n<li>ER8G &amp; ER8GV ELRS PWM Receiver<\/li>\n<\/ul>\n<p><em>Please note: The above receivers can be connected to the receiver&#8217;s CRSF port using a 4-wire CRSF cable.<\/em><\/p>\n<h4>How to upgrade firmware<\/h4>\n<p>NOTE: You may have to install necessary device drivers for your Operating system so the USB-UART dongle is detected by your computer.<\/p>\n<p>1. Connect the Serial Port Cable to receiver<br \/>\n2. Press the receiver&#8217;s BOOT button, and insert the serial port tool into your computer<br \/>\n3. Follow the ELRS upgrade tool&#8217;s instructions to complete the upgrade<\/p>\n<h4>Download<\/h4>\n<ul>\n<li><a href=\"https:\/\/drive.google.com\/file\/d\/1vosZCXgcBaKEXBofYgjDC5Yz5UL_BIn1\/view?usp=sharing\" rel=\"nofollow noopener\" target=\"_blank\">USB to UART driver<\/a><\/li>\n<li><a href=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/USB_UART_Tool_Connection_Guide.pdf\">USB UART Flasher V2 Connection Guide<\/a><\/li>\n<\/ul>\n<h4>Size<\/h4>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-11992 size-full\" src=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-size.jpg\" alt=\"\" width=\"480\" height=\"220\" srcset=\"https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-size.jpg 480w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-size-300x138.jpg 300w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-size-50x23.jpg 50w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-size-18x8.jpg 18w, https:\/\/originhobbies.com\/wp-content\/uploads\/2024\/01\/flasher-v2-size-416x191.jpg 416w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/p>\n<h4>Package Includes<\/h4>\n<ul>\n<li>1 * RadioMaster ExpressLRS USB UART Flasher V2<\/li>\n<li>1 * Pogo Probe<\/li>\n<li>1 * CRSF Wire<\/li>\n<li>1 * 2.54mm Serial Port Cable &#8211; Type B<\/li>\n<li>1 * Serial Port Test Hook &#8211; White<\/li>\n<li>1 * Serial Port Test Hook &#8211; Green<\/li>\n<li>1 * Serial Port Test Hook &#8211; Red<\/li>\n<li>1 * Serial Port Test Hook &#8211; Black<\/li>\n<li>1 * User Card<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/8324\/7079\/files\/ExpressLRS-UART-Details-PC_05_1024x1024.jpg?v=1699327732\" alt=\"RadioMaster ExpressLRS USB UART Flasher\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>RadioMaster ExpressLRS USB UART Flasher v2 provides a reliable alternative for flashing your ELRS receiver. 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 [&hellip;]<\/p>\n","protected":false},"featured_media":11978,"comment_status":"open","ping_status":"closed","template":"","meta":{"_eb_attr":""},"product_brand":[],"product_cat":[232,239],"product_tag":[],"class_list":{"0":"post-9859","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-elrs-protocol","7":"product_cat-radiomaster-accessories","9":"first","10":"instock","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/originhobbies.com\/de\/wp-json\/wp\/v2\/product\/9859","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/originhobbies.com\/de\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/originhobbies.com\/de\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/originhobbies.com\/de\/wp-json\/wp\/v2\/comments?post=9859"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/originhobbies.com\/de\/wp-json\/wp\/v2\/media\/11978"}],"wp:attachment":[{"href":"https:\/\/originhobbies.com\/de\/wp-json\/wp\/v2\/media?parent=9859"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/originhobbies.com\/de\/wp-json\/wp\/v2\/product_brand?post=9859"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/originhobbies.com\/de\/wp-json\/wp\/v2\/product_cat?post=9859"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/originhobbies.com\/de\/wp-json\/wp\/v2\/product_tag?post=9859"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}