How to update radio firmwareHere, we will introduce how to upgrade the firmware, multi-protocol module (transmitter), and boot loader of OpenTX/EdgeTX radio.
The same operation is possible with any radio that uses OpenTX / EdgeTX, such as Jumper T-Pro, T-Lite, T12, T16, RadioMaster Zorro, TX series and FrSky Taranis series. However, keyswitch assignments / functions differ depending on model, and screen / menu configuration differs depending on installed version of OpenTX / EdgeTX.
Table of contents
- About update method of radio
- Install OpenTX/EdgeTX Companion
- Checking and backing up the current firmware
- OpenTX/EdgeTX Companion Settings
- Download the latest version of OpenTX/EdgeTX firmware
- Download the latest multi-protocol module firmware
- Installation of the latest version of OpenTX/EdgeTX firmware
- Installation of the latest boot loader
- Installation of the latest multi-protocol module firmware
- How to update radio firmware directly from OpenTX/EdgeTX Companion
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About update method of radioThere are two ways to update OpenTX/EdgeTX-equipped radio:
- Connect PC and radio with USB cable, and update from OpenTX/EdgeTX Companion
- Save firmware to microSD card, insert it into radio, and update with radio itself
And at the end of this page, we will show you How to update radio firmware directly from OpenTX/EdgeTX Companion .
How to update radio firmware directly from OpenTX/EdgeTX CompanionIf you update radio, it may be regarded as a new device when you connect radio to your computer afterwards. If you want to use drone simulator on your computer , you need to reset stick settings.
Install OpenTX/EdgeTX CompanionDownload the latest firmware for the radio equipped with OpenTX/EdgeTX from the latest version of its companion software, OpenTX/EdgeTX Companion. First, install OpenTX/EdgeTX Companion on your PC. If you already have it installed, please update it to the latest version. See below for detailed instructions.
Checking and backing up the current firmwareYou can check the current firmware version on VERSION screen of RADIO(SYSTEM) menu. First, back up the factory-installed firmware in case the firmware update fails. For backup instructions, see the How to install OpenTX Companion, How to install EdgeTX Companion page shown above.
OpenTX/EdgeTX Companion SettingsBefore downloading the firmware, set OpenTX/EdgeTX Companion once.
In "Radio Type" drop-down list, select your radio model.
In the "Build Options" field, you can select whether to enable or disable various functions of the radio. This list of features will change depending on selected radio model. Hover your mouse cursor over each item name to see details of the function.
I think you should select "lua (enable Lua custom script screen)" and "internalmulti (support for internal 4IN1 MULTI-Module)". Select "internalELRS" for radios with a built-in ExpressLRS(ELRS) transmitter.
If you specify "SD Structure path" field, you can generate SD card image here when you upgrade the radio. It is convenient to create a folder such as "[Radio name]/sdimage" under any folder, copy the contents of Radio's SD card, and specify that folder here.
In "Default Int. Module", specify the type of transmitter (communication protocol between transmitter and radio) built into your radio. Select "MULTI" if you have a built-in 4in1 multi-protocol module, or select "CRSF" if you have a built-in Express LRS (ELRS).
Select "Default Stick Mode" and "Default Channel Order" according to your radio settings.
If you check "Append version number to FW file name", it will be easier to distinguish the version of the downloaded file.
Finally, click "OK". You may then be advised to download and install the latest firmware. Since the installation is not performed from the computer here, close this dialog box with "Cancel".
If your radio's name isn't in "Radio Type" drop-down list, it's probably not yet supported by OpenTX/EdgeTX Companion. Recently released radios may not yet be compatible with OpenTX/EdgeTX Companion. In that case, please wait for the version upgrade of OpenTX/EdgeTX Companion.
EdgeTX, which has a faster development pace than OpenTX, may already support even radios that OpenTX does not support. If you are using OpenTX, you may consider migrating to EdgeTX.
List of radios currently supported by OpenTX Companion (OpenTX)
How to install EdgeTX on the radio
How to install EdgeTX Companion
For EdgeTX, in addition to the above settings, also configure the following. Open the [Settings]-[Settings] screen from the menu, select the [Update Settings] tab, and enter each item on the screen.
For [Folders]-[Download], specify the folder to store the downloaded firmware.
For [Folders]-[Update], specify the folder to save the microSD card image, and store contents of current SD card of radio in that folder. The contents of [SD Structure path] on the [Radio Profile] screen will be copied here.
In [Components] column, check the category of the firmware you want to download.
The firmware will be downloaded to the folder specified in [Download]. Then, a microSD card image is generated in the folder specified in [Update]. The downloaded firmware will be copied to the appropriate location under the generated microSD card image.
Do not specify the same folder for [Download] and [Update]. Otherwise there will be extra copies of individual components in the microSD card image.
Download the latest version of OpenTX/EdgeTX firmwareFirmware can be downloaded using the OpenTX/EdgeTX Companion. Please click one of the options below.
Download the latest multi-protocol module firmwareIf you have a radio with a 4-in-1 multi-protocol module, update its firmware at the same time.
For OpenTX, follow the instructions below to download.
For EdgeTX, follow the instructions below, or check "Multiprotocol" in the [Components] column of the Companion's [Settings]-[Settings]-[Update Settings] screen described above "download procedure". Then when the EdgeTX firmware is downloaded, the multi-protocol module firmware is also downloaded. And it is stored in the "FIRMWARE" folder of the SD card image.
A screen like this will open, so select the model from the drop-down list at the bottom left. Please select each item at the bottom right of the screen as you like. I don't think there is any need to change anything other than Channel Order.
MULTI-Module Firmware Downloads
However, the channel map can be changed for each drone on the radio, so you don't have to worry too much.
Installation of the latest version of OpenTX/EdgeTX firmwareThe following steps are the same for monochrome models and color models, the only difference is the screen design.
Boot the radio in DFU/Bootloader Mode. Hold down left and right horizontal trim buttons inward and press power button. When screen becomes bright, release trim buttons and you will see a screen like this. Select "Write Firmware".
Installation of the latest boot loader
With the latest version of OpenTX/EdgeTX firmware stored in "FIRMWARE" folder of radio's microSD card, open "SD-HC CARD" or "SD CARD" screen of RADIO(SYSTEM) menu and move to "FIRMWARE" folder. Then select the latest OpenTX/EdgeTX firmware file and press and hold [ENTER] key.
Installation of the latest multi-protocol module firmware
How to update radio firmware directly from OpenTX/EdgeTX CompanionHere, we will show you how to use OpenTX / EdgeTX Companion to directly update radio firmware connected to your computer. However, this method does not update bootloader or multi-protocol modules. This method can be used when you want to rewrite only the radio firmware in a hurry.
Install the driver : STM32 BOOTLOADER
To access the firmware of FPV drones and OpenTX/EdgeTX radios using STM32 processors on Windows PC, it is necessary to install a driver called "STM32 BOOTLOADER". Normally this driver is not installed automatically and must be installed manually. See below for details.
Next, download the firmware to your computer. See Download the latest version of OpenTX/EdgeTX firmware above for instructions on how to do this.
Boot the radio in DFU/Bootloader Mode. Hold down left and right horizontal trim buttons inward and press power button. When screen becomes bright, release trim buttons and you will see a screen like this. Connect the radio to your computer with a USB cable.
There are two types of USB cables: "For data communication" where all terminals are connected, and "For charging" where only power supply terminals are connected. You need to use "For data communication" to communicate with OpenTX/EdgeTX Companion. Please note that some cables attached to bonus of mobile phone or charger, battery are "For charging".
If you click "Load" button here, you can specify the firmware file saved on your computer.
If you select "Use another start screen" on this screen, you can change Splash Screen of the radio. For how to create an image file for the startup screen, see HHow to set or change Splash Screen / Background Image / Model Image .
After that, turn off / on the radio to restart, and it's done.