For units without RMD Box you can use SD Card. Please take a SD Card with below 32 GB storage.
Upload the Software Version on the SD Card. Please make sure that the SW file is the only file on the SD Card.
You will find a SD Card slot below the cover. You push the SD Card into the slot and press the red button for 3 sec. You can see that the update has been started with the waving of the LEDs. It is finished when just one LED (On-Led) is lighting.
For more information about the Update Process, please refer here to our Handbook.