# Pair your Chipper 3X to the Roc Services mobile app

To accept card-present payments on the Roc Services mobile app, you must pair the BBPOS Chipper 3X card reader with the mobile app. Before you begin, make sure you've turned on Bluetooth on your mobile device.

During the pairing process, you must complete a test transaction. After you pair the card reader, the card reader stays paired with the mobile app for future transactions.

To pair your card reader with the mobile app, complete the following steps:

1. [Enable pairing mode on the card reader](https://support.payroc.com/en-US/core-products/roc-services/devices/bbpos-chipper-3x/pair-your-chipper-3x-to-the-roc-services-mobile-app.md#step-1-enable-pairing-mode-on-the-card-reader).
2. [Pair the card reader to the mobile app](https://support.payroc.com/en-US/core-products/roc-services/devices/bbpos-chipper-3x/pair-your-chipper-3x-to-the-roc-services-mobile-app.md#step-2-pair-the-card-reader-to-the-mobile-app).

## Step 1: Enable pairing mode on the card reader 

1. Press the power button to turn on your card reader.
2. Press and hold the power button until the blue light flashes.

## Step 2: Pair the card reader to the mobile app 

1. From the Quick Charge screen of the mobile app, use the keypad to enter a dollar amount, for example, **$1.00**, and then select **+**.
2. Select **Charge**.
3. Select **Swipe / Insert**.
4. (Optional) If a tip prompt appears, select **No Tip**.
5. When a Bluetooth pairing request appears, confirm that the card reader name is accurate, and then select **Pair**.
6. Enter the Bluetooth passkey that is on the back of the card reader.
   
   ![Back of the Chipper 3X with the BT passkey labeled](https://support.payroc.com/assets/62604b1e2f353126.png)
7. Select **Pair**.
8. Insert, swipe, or tap a card.
   
   > **Note:** Pairing is successful when the card prompt appears and the card reader shows a solid blue light.
9. (Optional) To send a receipt, select **Share Receipt**, and then select a receipt option:
   
   - To send an email receipt:
      1. Select **Email Receipt**.
      2. Enter the customer's email address.
      3. Select **Send Email**.
   - To send an SMS receipt:
      1. Select **SMS Receipt**.
      2. Enter the customer's phone number.
      3. Select **Send SMS**.
10. Refund the test transaction. For more information about how to refund a transaction, go to [Run a referenced refund on the Roc Services mobile app](https://support.payroc.com/en-US/core-products/roc-services/mobile-app/run-a-referenced-refund-on-the-roc-services-mobile-app.md).

After you pair the card reader, you can run a card sale. For more information about how to run a card sale, go to [Run a card sale on the Roc Services mobile app](https://support.payroc.com/en-US/core-products/roc-services/mobile-app/run-a-card-sale-on-the-roc-services-mobile-app.md).

## Related articles

- [Chipper 3X Quick Start Guide](https://support.payroc.com/en-US/core-products/roc-services/devices/bbpos-chipper-3x/chipper-3x-quick-start-guide.md)
- [Run a card sale on the Roc Services mobile app](https://support.payroc.com/en-US/core-products/roc-services/mobile-app/run-a-card-sale-on-the-roc-services-mobile-app.md)
- [My mobile device can't connect to my Chipper 3X](https://support.payroc.com/en-US/core-products/roc-services/devices/bbpos-chipper-3x/my-mobile-device-cant-connect-to-my-chipper-3x.md)
- [Run a referenced refund on the Roc Services mobile app](https://support.payroc.com/en-US/core-products/roc-services/mobile-app/run-a-referenced-refund-on-the-roc-services-mobile-app.md)

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From [Payroc Support](https://support.payroc.com/en-US/core-products/roc-services/devices/bbpos-chipper-3x/pair-your-chipper-3x-to-the-roc-services-mobile-app). Every page is listed in [llms.txt](https://support.payroc.com/llms.txt).