# Pairing the DeltaQuad Controller with the air unit

{% hint style="info" %}
After a factory reset has been performed on the DeltaQuad Controller, it might be necessary to rebind the controller with the air unit located in the DeltaQuad Evo. Please follow the steps below.
{% endhint %}

1. Power on the DeltaQuad Evo and the DeltaQuad Controller. Open Auterion Mission Control. In the upper right corner of the screen, the Radio icon is located. If it has a strike-through and the radio link is not available, a rebinding is required.

<figure><img src="/files/tgSBqpDsHZEfKQskqTQm" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/H3qMK3Z5VkgrCfqlQMcD" alt="" width="188"><figcaption></figcaption></figure>

2. Remove the hatch of the avionics bay by loosening the two screws with a Torx tool (T10).&#x20;

{% hint style="warning" %}
Please use a medium-strength lock bond when tightening the screws again.
{% endhint %}

<figure><img src="/files/qlvOmVVwUQMVyUgDEAAQ" alt="" width="464"><figcaption></figcaption></figure>

3. In the avionics bay you will see the radio modem. Push the *SET* button. This puts the modem into the bind mode. When in bind mode, the LED of the modem rotates through different colors.

<figure><img src="/files/83gKP4ab8qvzLMC2B7Qr" alt="" width="563"><figcaption></figcaption></figure>

<figure><img src="/files/5orpMUyCkCxbPavWt4Cr" alt=""><figcaption></figcaption></figure>

4. On the Controller, open the Radio Settings app.

<figure><img src="/files/vQQVVXsIq0vvnuKdknF7" alt="" width="563"><figcaption></figcaption></figure>

5. Open *WIRELESS PARAMETER CONFIGURATION*.

<figure><img src="/files/D1wKTAEuY6WSne5sULWd" alt="" width="563"><figcaption></figcaption></figure>

6. Tap on *FREQUENCY MATCHING*.

<figure><img src="/files/dQprXFFoLuD2RTC8SHVp" alt="" width="563"><figcaption></figcaption></figure>

7. Click on *Confirm*.

<figure><img src="/files/eUp4ebs1FCYTFcznDkGl" alt="" width="563"><figcaption></figcaption></figure>

After the binding process has been successful, a connection will be established between the DeltaQuad Evo and the DeltaQuad Controller.

<figure><img src="/files/2RQoT9MXypj10mwZPMkf" alt=""><figcaption></figcaption></figure>


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