Make sure the card reader is powered on and plugged into the kiosk/register.

Confirm that the your device is connected to the internet.
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Allow the card reader to charge to at least 50%. To check the battery level, briefly press the power button on the side. At least 2 solid LEDs should be displayed.
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Open the SnackOs app. It should prompt you to connect to a card reader. If the reader was previously connected, it should connect automatically.
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In the SnackOs app, go to the Settings app.
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Select CARD READER from the left side menu.

Choose the option to connect via USB (recommended) or Bluetooth. Click Find through USB.
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Your card reader should appear in the "DISCOVERED" section.

A pop-up will appear asking if you want to connect to the card reader. Check the box and click Accept.

Click CONNECT next to the discovered reader.
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On the first connection, the card reader will undergo a firmware update. During this process, you will be prompted to approve connection permissions. It’s crucial to monitor these prompts and approve them to ensure the update completes successfully.
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Once the card reader is connected, it will appear in the CONNECTED READER section.
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Return to the home screen to access your register or kiosk app to start using the card reader.