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Axisflying Thor

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Advisory

If you are flashing/updating your TX module via WiFi for the first time from the factory firmware, or from an older firmware, to ExpressLRS 3.x firmware you will first need to flash it to version 2.5.2 then flash it with the Repartitioner binary file (right click, save as/save file as). Should it complain about Target Mismatch, just click Flash Anyway. Only then you can flash to 3.x firmware following method 1 or 2 from the WiFi Flashing Guide below.

Joshua Bardwell has a video about it here.

You can update straight to 3.2.0 without repartitioner or going to 2.5.2 first if flashing via UART.

Flashing via WiFi

  • Target: AXIS_THOR_2400_TX_via_WIFI

  • Device Category: AXIS 2.4 GHz

  • Device: AXIS THOR 2400TX

via WiFi

Flashing via WiFi

Attention

The methods below apply if you've already updated your Tx modules to 2.x. For modules still in firmwares pre 2.x, you should use 1.x WiFi flashing method to update to 2.x. Or update to 2.x via USB instead.

Method 1

With the correct target selected and Firmware Options set, Build your firmware using the ExpressLRS Configurator.

Build

Once it's done, it should open the Target folder for you where the AXIS_THOR_2400_TX-<version>.bin file is. Do not close this window so you can easily locate the correct file to upload to the module.

The next steps will require the ExpressLRS Lua script (right-click, save as). Download the ExpressLRS Lua script and save it to your Radio's /Scripts/Tools folder. Insert/attach your module into your module bay and make sure it's not loose and there's a proper connection with the radio (see the Radio Preparation page). Execute the ExpressLRS Lua script by pressing "System Menu" on your radio and then under Tools, select ExpressLRS.

Lua Script

Lua Script T16

If the script is stuck at Loading..., then there's a chance your module is still in v1.x firmware, your External RF module is not set to CRSF or your module is not well-connected to the module bay pins.

Lua3

Select WiFi Connectivity from the Lua script and then select Enable WiFi. Press OK once more to activate the WiFi on the Tx Module. Connect to the Access Point the module will create called ExpressLRS TX, with the password being expresslrs.

WiFi Hotspot

Using your browser, navigate to the correct page (typically http://10.0.0.1/) and it should show an upload form (you will have to scroll down a bit). You can drag-and-drop the AXIS_THOR_2400_TX-<version>.bin file that the ExpressLRS Configurator created. You can also click the Choose File button and navigate to the folder where the firmware was created. Ensure that you have selected the correct firmware file and click Update.

Once the file is uploaded, a pop-up confirmation will show up.

Update Success

Wait for the Lua script screen to close the "WiFi Running" screen and your module should be updated now.

Verify the version and hash in the main screen of the ExpressLRS Lua script.

Join Local Network

You can configure Home Network SSID and Password if you chose not to use ExpressLRS Configurator to set them. Once these are set, you can use the next two methods below.

JoinNetwork

Method 2

With the correct target selected and Firmware Options set, Build your firmware using the ExpressLRS Configurator.

Build

Once it's done, it should open the Target folder for you where the AXIS_THOR_2400_TX-<version> file is. Do not close this window so you can easily locate the correct file to upload to the module.

Using the ExpressLRS Lua script (right-click, save as), select Wifi Connectivity then choose Enable WiFi and if you have flashed your Tx Module with your Home WiFi Network details or have set it in the Join Network section of the Update Page, it will connect to the local network automatically.

Using your browser, navigate to http://elrs_tx.local and the WiFi Update page should show up. Scroll down towards the Firmware Update section, as shown below:

Firmware Update

Drag-and-drop the AXIS_THOR_2400_TX-<version>.bin file created by the ExpressLRS Configurator into the Choose File field, or manually navigate to the Folder by clicking the Choose File button. Once the correct file is selected, click the Update. Wait for the process to complete, and the module will reboot (~1min).

Verify the version and hash in the main screen of the ExpressLRS Lua script.

Method 3

Using the ExpressLRS Lua script (right-click, save as), select Wifi Connectivity then choose Enable WiFi and if you have flashed your Tx Module with your Home WiFi Network details or have set it in the Join Network section of the Update Page, it will connect to the network automatically.

Using the ExpressLRS Configurator, select the correct Target and set your Firmware Options. Click Build and Flash and wait for the compile process to complete. You should see a section as pictured below and the Success message marking the update process complete.

Build & Flash

Wifi Update Log

Verify the version and hash in the main screen of the ExpressLRS Lua script.

Flashing via USB/UART

  • Target: AXIS_THOR_2400_TX_via_UART

  • Device Category: AXIS 2.4 GHz

  • Device: AXIS THOR 2400TX

via UART

Flashing via UART

Attach a USB Data Cable to your module and Computer. Windows users might have to install CP210x Drivers to ensure the device is properly detected and initialized.

Important

Check Device Manager on your Windows system before proceeding. Ensure the correct drivers are installed. Some Linux distros might also need drivers. The drivers can be downloaded here.

CP210x Drivers

Note

To flash the TX itself, the switch on the back side of the module must be set to the leftmost position. To flash the TX backpack, the switch must be set to the rightmost position. For normal operation, the switch must be centered.

Using the ExpressLRS Configurator with the correct Target selected and Firmware Options set, hit Build & Flash. Wait for the process to finish, and you should be greeted with the "Success" message.

Build & Flash

Verify the version and hash in the main screen of the ExpressLRS Lua script.

Using the module on a DX9

  • Install the latest DX9 firmware with CRSF v2 support via Serial port.
  • Wire up Power (Vbat & GND) as per Crossfire install instructions.
  • Use Signal from DX9 to S.Port pin of the Thor TX module.
  • Optional: Connect an external power source via XT30.
  • Flash the TX module with UART_INVERTED unchecked.
  • Adjust your Packet Rate to 250Hz using the Screen & Joystick.

Acknowledgement

This guide is contributed by discord user ChaserP.