# Read card data

To read the card data on the VP3300 card reader when you request a payment through your iOS app:

{% stepper %}
{% step %}
Press the power button to turn on the card reader.

The Bluetooth settings will turn on and pair automatically with your iOS device. For more information, see [Pairing card reader](https://docs.xplorpay.com/guides/payment-processing-solutions/mobile-emv-sdk/idtech-vp3300/pair-card-reader).
{% endstep %}

{% step %}
Insert the card into the card slot of the reader.

{% hint style="warning" %}
Insert the chip side first into the card slot of the reader.
{% endhint %}
{% endstep %}

{% step %}
Insert the card and wait until the middle LED on the back of the card reader flashes green for two seconds.
{% endstep %}
{% endstepper %}