Keeping EdgeTX up to date is the best way to get bug fixes, new radio support, performance improvements, and the latest UI features. EdgeTX’s official site says v2.12.0 is now live, and the project currently recommends either EdgeTX Buddy or the bootloader method for updating, with a separate note that STM32H7-based radios follow a somewhat different process. In this tutorial, I will show you how to update EdgeTX on your radio step by step.
This guide is for radios that are already running EdgeTX. If your radio is a few years old and still running OpenTX, here’s a guide on how to migrate to EdgeTX: https://oscarliang.com/migrate-from-opentx-to-edgetx/
Table of Contents
Do You Have to Update EdgeTX?
The short answer is no, you don’t.
If everything is working fine, it’s usually best to leave your radio firmware alone unless there’s a specific bug fix or new feature you want. That said, the process is straightforward, and if you follow the instructions carefully and make sure everything is backed up properly, it should be doable even for beginners.
Before You Begin
Before updating, confirm 3 things:
- your radio is already running EdgeTX
- you know what version of EdgeTX it is running
- you know your exact radio model, as every radio requires a different firmware target
To check these:
- Long press the SYS button.
- Scroll to the VERSION tab (7th tab) by pressing the Page button.
- After FW, it should mention “EdgeTX”, and what your radio model is. The version number is after VERS.
Back Up Your Radio
You normally won’t lose any models or settings after the firmware update. But it’s always good practice to back up your radio every time you flash firmware, just in case.
In the latest versions of EdgeTX, all configuration files are saved on the SD card. That means backing up is as simple as copying the SD card contents to your computer.
More specifically, models are saved in the MODELS folder, and radio settings are saved in the RADIO folder. These are the two folders you absolutely must back up. However, I recommend backing up the entire SD card, including all folders and files, so you don’t lose any custom sound packs, image files, or Lua scripts.
- Start by turning the radio on and plugging it into your computer via USB.
- When the radio asks for USB mode, choose USB Storage.
- Then copy the entire contents of the SD card to a safe folder on your computer.
Still not sure what to do? Here is a step-by-step guide on how to back up and restore EdgeTX models and radio settings: https://oscarliang.com/backup-restore-models-radio-settings-edgetx/
How to Flash EdgeTX
Depending on your radio, choose the appropriate flashing method:
- If your radio has an STM32 H7 processor, such as the RadioMaster TX16S MK3, TX15, or Jumper T15 Pro, you must use the bootloader/UF2 method.
- For all other radios, you can use EdgeTX Buddy.
1. Bootloader/UF2 Method
Use this method if your radio has an STM32 H7 processor, such as the TX16S MK3, TX15, or Jumper T15 Pro.
- Download the firmware using EdgeTX Buddy: https://buddy.edgetx.org/#/flash
- Put the radio into bootloader mode by holding the horizontal trim buttons (T1 and T4) inward while powering on the radio.
- Connect the radio to your computer. Avoid using a USB-C to USB-C cable; always use a USB-A to USB-C cable, ideally the one that came with your radio.
- Two external drives should appear on your computer, one of which is named UF2.
- Copy the firmware file (.uf2) to the UF2 drive.
- Once the file starts transferring to the radio, the radio screen should change to show the update progress.
- When the update is complete, you can safely eject the UF2 drive and disconnect the radio. It should restart automatically.
- At this point, both the radio firmware and the bootloader should be up to date.
Now go ahead and set up the SD card contents, and you’re done.
2. EdgeTX Buddy Method
Use this method if your radio has an STM32 F2 or F4 processor, such as the TX16S MK2, Boxer, or Jumper T20S.
Connect Radio in DFU Mode (Bootloader Mode)
- Unplug the radio and power it off.
- Put the radio into bootloader mode by holding the horizontal trim buttons (T1 and T4) inward while powering on the radio.
- Plug the USB cable back into the computer.
This puts the radio into DFU mode (bootloader mode) so EdgeTX Buddy can flash it. If holding the trim buttons doesn’t enter DFU Mode, following this guide: https://manual.edgetx.org/edgetx-how-to/access-dfu-and-bootloader-mode
You should see STM32 BOOTLOADER appear under Universal Serial Bus devices in Device Manager on your computer. Windows should automatically install the driver for you.
If there’s a yellow warning sign in the icon, running the ImpulseRC Driver Fixer (download here) should fix that.
Flash Firmware Using EdgeTX Buddy
Now open EdgeTX Buddy in your browser: https://buddy.edgetx.org/#/flash
It is a web-based firmware flasher, but like Betaflight Configurator, it only supports Chromium-based browsers such as Google Chrome, Microsoft Edge, and Opera.
Can’t use EdgeTX Buddy? You can download and install the EdgeTX Flasher program.
Choose the firmware version you want, preferably the latest stable version, and select the correct radio model.
Then choose Flash via USB.
Select Your Radio
In the new window, click on “Add new device”, select STM32 Bootloader and click Connect.
Under Available devices, click “STM32 BOOTLOADER” to highlight it and then click “Next”.
Start Flashing
Click “Start flashing”.
Flashing should only take a couple of minutes.
If you get any errors during the process, make sure the radio was switched off when you connected the USB cable, and that you selected the correct device in the previous steps. You can also try reinstalling the DFU driver using ImpulseRC Driver Fixer and then restarting your computer.
Once the firmware update is complete, EdgeTX Buddy might prompt you to set up the SD card contents. This step is strongly recommended, even if it is not strictly required, because mismatched firmware and SD card contents are one of the most common causes of warnings and odd behavior.
Setup SD Card Content
Once you have updated the firmware, you should update the SD card contents as well.
Unplug the radio, power it on, and reconnect it by USB. Choose USB Storage when prompted on the radio.
Two new external drives should appear on your computer. Find the one with lots of folders in it, such as FIRMWARE, MODELS, and RADIO. This is the drive for your SD card contents. Remember the drive letter.
Go to https://buddy.edgetx.org/#/sdcard.
Click on “Select SD Card” and select the drive for your SD card content. If prompted, click on “Let site view files”, then “Save changes”.
Confirm the firmware version and radio model, choose the desired sound pack language, and apply the changes (default is English).
Click on “Apply changes”, it will take a minute to download the required content, and a few more minutes to write them to your SD card.
After that finishes, the radio should be updated and ready to reboot into the new EdgeTX version.
That’s it. You have updated EdgeTX to the latest version.
Setup Radio After Flashing
If you haven’t done it already, the first thing to do is copy back all your custom sound files, images, and scripts. Simply copy the IMAGES and SCRIPTS folders to the SD card.
Make sure you have selected the correct Internal Module in the system settings. To do this, hold down the SYS key and go to the Hardware page. Scroll down to Internal Module and choose the correct option. For example, if you have a 4-in-1 multiprotocol module, select MULTI. For ExpressLRS, select CRSF. If you do not do this, you will not get the correct options under Internal RF in Model Setup.
You should also recalibrate the sticks and sliders. It is a good idea to recalibrate the battery reading too, ideally against a multimeter, although plugging the battery into a charger should also give you a reasonably accurate reading.
Next, choose a theme you like. If you do not want to create your own, you can find more themes here: https://giters.com/EdgeTX/themes#list-of-themes-available
After that, set up your widgets.
Usually, you will want to display telemetry data such as battery voltage, RSSI, and link quality. So the first thing to do is power up your quad and discover telemetry sensors to get a list of available telemetry data. If you already have sensors listed, you can try deleting them and discovering them again to make sure you have the most up-to-date list.
You can then customize the top bar widgets
… and assign telemetry values to them.
This is how I set up my widgets.
You can also set up the two knobs, or rotary switches, to adjust backlight level and volume, which is very handy. You can do this in Global Functions under radio settings.
If you do not like the touchscreen, you can disable it, or disable and enable it using a switch. Go to Global Functions, create a new function, assign a switch, and select the function No touch. It is popular to use the arm switch to disable the touchscreen, because we do not normally use it while flying.
Update Internal Multiprotocol Module
If your radio has an internal 4-in-1 multiprotocol module, you might get a Module Update Recommended message under Internal RF Module Status after flashing EdgeTX. This is just a reminder to update the multiprotocol module, and it is easy to do. If your radio has an ExpressLRS module instead, you will not see this message and you do not need to do anything.
Download the multi-protocol module firmware here: https://downloads.multi-module.org/?rmtx16s
There are two files you need to download:
- There are 3 “.bin” files, pick the one that matches your channel map order in your radio (you can find out in the Mixer page in your radio model setup). For example, AETR means Channel 1 = “Aileron” (roll), Ch2 = “Elevon” (pitch), Ch3 = “Throttle”, and Ch4 = “Rudder” (yaw).
- MultiLuaScripts.zip
Connect USB cable to the radio while it’s powered on, you will be prompted with 3 options, select “USB Storage (SD)”. Two external drive should appear on your computer, find the one with lots of folders, including a folder called “FIRMWARE”.
Copy the “.bin” file you just downloaded in the “FIRMWARE” folder.
The “MultiLuaScripts.zip” file contains LUA scripts you need to replace the old ones with on the Radio’s SD card. Simply unzip this file, and copy the “SCRIPT” folder, when prompted just select “overwrite everything”.
You can now disconnect the USB cable, and restart the radio.
Long press “SYS” key on your radio, scroll to the second page “SD-HC Card”. You should see the “FIRMWARE” folder there, click on that.
Look for the “.bin” file you just placed there. Click on it, and select the option “Flash internal multi”, and the update will start. It should only take a minute or so.
Once the update is complete, you can go to Model Setup, Internal RF, and check Module Status and see if the firmware version is the same as the one you just flashed, and the “Module Update Recommended” warning should be gone.
EdgeTX Companion
EdgeTX Companion is a handy tool/software that runs on your computer. It can be used for
- reading the settings on the radio and let you modify it more easily on your computer
- compiling and flashing firmware to your radio
You can download it here: https://github.com/EdgeTX/edgetx/releases/ (scroll all the way down on that page under “Assets”, and find the link for “edgetx-cpn-XXXX-vXXXX.zip“.
Unbrick Radio
If your radio is not turning on by pressing the power button, it might be bricked. This can happen when you turn the radio off during a firmware update.
To recover a bricked radio:
- Download STM32 Cube Programmer: https://www.st.com/en/development-tools/stm32cubeprog.html.
- Get a copy of the EdgeTX firmware for your radio (download from edgeTX github).
- Connect radio to your computer via USB cable, your computer should detect the radio
- Install and open STM32 Cube Programmer you just downloaded
- In the drop down next to the connect button, select USB, In Ports, if it says “no DFU, click the refresh button and select USB1 (and you should see a serial number under it, which means the programmer can see the radio), then connect
- Once connected, click on the 3 horizontal bars in the top left, click “Erasing & Programming”, then browser to the EdgeTX firmware .bin file
- Make sure “Verify Programming” is checked, then click Start Programming. This will flash a fresh copy of EdgeTX to the radio
- When it’s done, you can unplug USB cable, and the radio should power up when you press the power button
Conclusion
Keeping your EdgeTX radio firmware up to date is important if you want to take advantage of new features, bug fixes, and performance improvements. The update process is fairly straightforward, especially with tools like EdgeTX Buddy that simplify most of the steps.
Make sure to check for new firmware updates from time to time, and use this guide whenever you need to update your radio. Having the latest firmware helps you get the most out of your radio, whether you are flying FPV drones or RC planes.
Happy flying!
Edit History
- Feb 2022 – tutorial created
- Feb 2023 – updated for EdgeTX 2.8
- Apr 2026 – updated for EdgeTX 2.12
51 comments
At this point I get stuck:-
“Copy the “.bin” file you just downloaded in the “FIRMWARE” folder.
The “MultiLuaScripts.zip” file contains LUA scripts you need to replace the old ones with on the Radio’s SD card. Simply unzip this file, and copy the “SCRIPT” folder, when prompted just select “overwrite everything”.
You can now disconnect the USB cable, and restart the radio.
Long press “SYS” key on your radio, scroll to the second page “SD-HC Card”. You should see the “FIRMWARE” folder there, click on that.
Look for the “.bin” file you just placed there. Click on it, and select the option “Flash internal multi”, and the update will start. It should only take a minute or so.”
Firstly I see an SD card not the SD=-HC you refer to.
Secondly I cannot see the bin file in the Firmware folder so am unable to flash it.
Been through the process a couple of times and still stuck on no bin file being visible.
Any help much appreciated, Frank
Hola, es posible descargar el archivo para cambiar el idioma a español en la mk3 solo he podido cambiar las voces
Gracias
Bonjour,
je viens d’acquérir une RC Radiomaster Pocket ELRS.
le FW = Edgetx-pocket
Vers = RM Factory (1fdb58ba)
est il conseillé de mettre à à la dernière version EdgeTX”Jolly Mon” v2.11.6 ?
Si oui, je comprend qu’il faut mettre à jour le module ELRS ?
Désolé, je débute et je ne suis pas encore très à l’aise.
Merci pour tes réponses.
As usual Oscar, your articles are very precise and usefull, many thanks !!! 👍
I still have a little “frenchy” problem : everything seems ok : up to date, writing and speaking french, but still, the Model Wizard writes in English !!
I think it’s a only a detail and it doesn’t matter for me, but may be I forgot something ? 🧐
Do you think it’s correct ?
I wih you an excellent WE
Best regards, Marc
Thanks Oscar! I’d started on a project to update my old Open TX to Edge TX on my Radiomaeter TX16S. I was scouting around trying to find out how to do it and was beginning to despair because all the instructions I found were out of date, impossible to understand, wrong, links broken… ARGH!
Then I found your easy to understand, fully linked, fully illustrated with pics/screenshots instructions. BRILLIANT! Sorted my radio out in half an hour over supper! THANKS!
Bonjour Oscar,
merci pour toutes vos réalisations, j’ai obtenu la version “Jolly Mon”, v2.11.3 pour la jumper T lite qui est installée rapidement, le problème est une inversion dans l’accès depuis un modèle au module interne qui est ELRS et externe multiprotocol . Depuis la mise a jour je ne peux accéder au module interne ELRS car la mise a jour serai composée pour la version de base en multiprotocol… merci de bien vouloir m’aider :)
bien a vous Pi-Mi
Dans systeme hardware 6/7 j’ai trouvé comment changer cela. ELRS n’est pas affiché dans la page 1/7 recherches a suivre ;)
Followed directions for Taranis QX7 ACCST and it worked the first time. Models didn’t convert correctly so I may have missed a step. None of my settings moved which is fine but I’ve over 25 models all with their own little tweaks. So sad.
After first update on my boxer edgeTx and I can’t find all of the protocols. Only 5 protocols are available. Have I done something wrong.?
Gm
It seems that “Models” are not exported easily in a Taranis QX7, I’m unable to restore the models in the radio even with the backups in the SD card, and this is because the models are bin files and EdgeTx doesn’t support this, I’ve found some post saying that the backup with the “otx” file extension can be used, but I can’t do it with the EdgeTX companion. Does anybody knows how to open an otx file in the EdgeTX companion? When trying to open the file is not allowing that extension (.otx). Found some links saying that you have to open it in EdgeCompanion, but for my there is no way:
OpenTX to EdgeTX models · EdgeTX/edgetx · Discussion #3149 · GitHub
Models not viewable after copying from OpenTX · Issue #2166 · EdgeTX/edgetx
Latest version of EdgeTX doesn’t use bin file anymore for model backup, they are now in yml format. You need to downgrade your radio back to the version which you backed up your models, and restore there. Or you might just have to setup all the models from scratch in the latest version.
Hello, thanks for the help in advance, I have a Taranis X7 ACCST, just upgraded to EdgeTX, even I have backup the models in the SD card, I cannot restore them in the radio, when selecting the folder in Radio Page 2 “MODELS” and try “restore” nothing happens, If I go to the “Models” section and select “Restore”, it says “no models on SD”
I have just purchased a RM Tx16s. Successfully changed it to mode 1. Now tried flashing latest version of firmware (2.8.4) which it says has been successful, yet when I check the information it reports that the old version is installed (2.7.1). Repeated, same result. I’ve also updated the module firmware and the transmitter reports that the latest version is installed successfully as expected. Something is not right, but I don’t know what to do now.
This worked for me but I have a problem with Edgetx remembering the date and time. I set it, and then the TX16S forgets it. Is this normal? Anyway, thanks for the excellent tutorial on upgrading
There’s a button cell battery on the PCB, maybe it needs replacing: https://oscarliang.com/setup-tx16s-t16-radio/#Replacing-Internal-Button-Cell-Battery
I have the transmitter Frsky Taranis X9D Plus EU-LBT ACCST.
If I migrate my transmitter from OpenTX to EdgeTX, can I continue to use my EU-LBT receivers?
Or should I replace my receivers?
I have a radiomaster tx16s mk2 with ELRS internal module how do I update as I cannot find files etc. regards john pitfield
Outstanding content. Good god having such a hard time trying to get the right information and what to do when its not working. THANK YOU!!!
Hi, I would like to migrate my models from my TX12 radio with OpenTX 2.3.15 to my Zorro with EdgeTX, but I just realized, I do not have RADIO folder on my OpenTX radio. If I replace only the MODELS folder, the bin -> yml conversion is not working. Is it because of the missing RADIO folder? Should I try it on another way. Thank you in advance.
I am having the same issue. No RADIO folder from OpenTX transmitter and no yml conversion taking place in EdgeTX transmitter.
my radio is frsky taranis lite – should i reformat the sd card before updating with edgetx?
i updated my radio fw: edgetx-x9lites. I verified that the SOUNDS directory contains the hello.wav file – the EdgeTX splash screen is displayed but the power on audio does not happen – what can I do to enable this? Your web site is full of information, especially for a beginner like me. I used to fly motorized helicopters before i started to fly battery drones.
should i format the sd card before i start loading edgetx
If the card previous worked in your radio, then you shouldn’t have to format it, just delete all files on it and copy new SD content to the card.
Excellent instructions for TX16s
All the steps and links in one clear article,I was getting confused in my browsing to migrate to Edge TX.
It did not take long at all and I like the results
prior to loading EdgeTX on my Taranis Lite radio, should i delete the SDcard contents? I do not have any models that i need to save – this is like a new radio programming.
Great Tutorial. Much faster/better than watching a Youtube vid.
Please update the “Backup” section! I interpreted this as saying that copying the content of the SD card is sufficient for a full backup, and that “Check out my guide on how to backup your OpenTX radio.” was just a reference for more detailed instructions. So I didn’t use OpenTX companion to back up my models. I was GUTTED to then upgrade to EdgeTX and discover that I had LOST ALL OF MY MODELS :'(.
Please make it clear in the instructions here that you need to use Open TX Companion to back up models first.
Well, i put a link there for a reason, it goes into detail how to backup your OpenTX radio.
Hi Oscar. I bought a Tango2 a couple months ago and I thought there was an issue with my speaker because I was hearing a kind of static noise when it played any wav sounds or beeps. Like a distortion or buzz along with the sounds. I recently bought a Zorro and the sound was perfect… UNTIL I just updated the EdgeTX to the latest firmware 2.8.1 and now I get exactly the same buzzing sound I was getting on the Tango 2. I played the original wav files on my computer compared to the ones on the card from 2.8.1 and they sound identical. I also tried other languages but like I said it also happens when I scroll through menu items and plays beeps (always this buzzing static that starts just before the sound plays and continues until the sound is done playing. Any ideas? I don’t see anything with a google search. Thanks!!
Muchas gracias por el post, pude instalar sin problemas en mi tx16s, esta sin estrenar, aun estoy armando el avion objetivo
Very good.
I have an xlite pro running a elrs backpack. Will edge tx disable the power/rf meter that’s included in the lua ?
I just went to the EdgeTX sdcard link you added and I did not see horus.zip was not listed. Did edgetx change the name of the zip file? if so what is the new name?
looks like they have changed the naming of the files, they are now named after the screen size instead of radio models. Horus has been renamed to c480-272, which works for TX16S and T16 as well.
Thank you.
If u update sd card content the menu bar disappears. I wondered like 15min why I only have a tools tab until i realised there are more i only have to click a page to the left. That might help some people who are as brain afk as me.
Thank you for the information
Hi! Thanks for all the help I got edgetx on my X9D no problem your instructions made it very simple. Now i have bricked my t16 I erased bootloader and sdcard content and got confused and then I erased my computer so now im starting from scratch got my computer loaded up and running and now the t16 default bootloader and the sdcard content cause its bricked oh yeah i reseated all the ribon cables with the upgraded version ribons it was bricked before I did this can you help plz ty?
How to active MIXER SCRIPT option ?
Tank you
Is the USB-delayissue in OpenTX fixed yet? I can’t find anything specifically about this on Opentx website, but it’s a lot to go through and I may have missed it. Thank you for your guides by the way, very helpful!
Hi Oscar
I try to copy models from opentx to edgetx. when i turn on the Tx16 i cant se the copied models. Could You be of any help with this issue
I had to use my backups from OpenTx Companion to get my models. I would highly recommend using it to backup your models and settings prior to the switch.
Make sure to copy the radio folder (backup)also not just models folder
Just wondering where the Radio folder is? It is not in the SD card and the backup is a .bin file…
Holy cow , this needs to be more specific as of creating models and getting the sticks and switches to function….
I had a basic setup in opentx , now I am having trouble getting model to function
I have to agree. I just want over to edgetx on my Radiomaster t16s and its glitchy. I’m having issues calibrating the side slider and sticks. One slider is always way off center usually the right side slider. The sticks never read 100 to -100 its always 97 to -98 or less. Also noticed the middle 6 buttons are glitchy as well. I’ll switch from button 1 to 3 and it always bounces back and forth 2- 3 or 3-2 then it settles down. So I won’t be using those for flight modes like I did on opentx.
I think I’ll be flashing back to opentx 2.3.14 latest OPtx firmware since it’s way more stable. Edge definitely needs more work plus I am hoping they come up with a better user interface because everything seems hidden on edgetx and difficult to find certain settings.
Hi, Oscar
I find someone update 4in1 multiprotocol firmware when flashing. Is it necessary? Firmware concerned is available at downloads.multi-module.org/
Thanks.
Thank you for the guide, it made switching to EdgeTX pretty easy!
Need help! got it bricked,cube see the radio but got “Warning: Device is under Read Out Protection! if you want to disable RDP Please reconnect with Read unprotected disabled”
I found the check mark read unprotected MCU I flash it again but no booting from edge but with Opentx back in business gonna start again I might skipped a step!