# Upgrade Existing Sensors

## Information

A hardware upgrade is required for existing Sentera sensors that were purchased before the release of the RTK-PPK module. To accommodate users with existing Sentera sensors who purchase the RTK-PPK systems, Sentera will perform a hardware upgrade for free to allow for compatibility with the RTK-PPK module. 

## Does My Sensor Need An Upgrade?

Sensors that are ready for use with the RTK PPK Module will have a GEN II marking located on the bottom side of the gimbal as shown.

 **If your sensor does not have this marking it requires an upgrade to work with the RTK PPK module.** 

<figure><img src="/files/5Lp4zKFhENPHdTw9kDXM" alt=""><figcaption></figcaption></figure>

## Upgrade Eligibility Requirements

1. A Sentera Sensor must already be owned.&#x20;
2. An RTK PPK Module must already have been purchased.&#x20;
3. An RMA request must be submitted per the instructions below.&#x20;

## RMA Instructions

{% stepper %}
{% step %}

### Go to Sentera Support

{% embed url="<https://support.sentera.com/portal/en/home>" %}

{% hint style="info" %}
Open this link in a new window&#x20;
{% endhint %}
{% endstep %}

{% step %}

### Create a Ticket

<figure><img src="/files/W9e31elV51X3BxP57DN7" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Enter Your Information

<figure><img src="/files/lb8uiJBCKQxHSrhewC5P" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Enter "RTK PPK Hardware Upgrade" as the subject

```
RTK PPK Hardware Upgrade
```

<figure><img src="/files/nWqulfSWsTMz7os6Jvoq" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Enter Information in Description

Enter the following information into the Description box (copy paste for ease)

```
Part Number:

Serial Number:

Return Shipping Address
Company:
ATTN: 
Address:
City:
State:
Zip Code:
Email: 
Phone:
```

<figure><img src="/files/uX6ZpcYsiOr695OA6Tvg" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Upload Proof of Purchase

Use the Attach a file button to upload the proof of purchase for the RTK-PPK module.&#x20;

<figure><img src="/files/BUFkIxdvZ3yLfJjQYsW9" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Submit&#x20;

Submit the ticket.&#x20;

Sentera support will respond and provide an RMA number, shipping address, and shipping instructions.&#x20;
{% endstep %}
{% endstepper %}

## Other Information

* Sentera will not provide a shipping label to return the sensor in for upgrade.&#x20;
* Sentera will pay the shipping costs for ground shipping back to the provided return address after the upgrade it complete.&#x20;
* Expedited return shipping can be requested at the customers expense.&#x20;
* The upgrade will be completed in 5 to 10 business days from when Sentera receives the returned equipment.&#x20;


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