Card Reader Setup Guide

Whether you’re starting your business or upgrading your payment setup, getting your card reader up and running quickly and correctly is key. This guide walks you through setting up the three most popular mobile card readers in the UK: the PayPal Zettle, SumUp Solo, and Square Reader. We’ll cover step-by-step instructions, tips to avoid common issues, and what to expect once you’re live.

PayPal Zettle Setup Guide

The Zettle Reader by PayPal pairs with your phone or tablet and connects via Bluetooth to the Zettle app.

Step-by-Step Setup

  1. Download the App

    • Search for Zettle by PayPal on the App Store (iOS) or Google Play (Android).

    • Install and open the app.

    • Log in with your PayPal account or create a new Zettle account.

  2. Turn On Your Reader

    • Hold the power button until the screen lights up.

    • Ensure Bluetooth is enabled on your phone or tablet.

  3. Pair the Reader

    • In the app, go to Settings > Card Readers.

    • Tap “Connect Reader”, select your Zettle Reader from the list.

    • Confirm the Bluetooth pairing code.

  4. Perform Any Software Updates

    • The reader may prompt you to update its firmware—allow time for this to complete.

  5. Run a Test Transaction

    • Set a test item in the app and try processing a low-value payment or use the refund function if needed.

Tips

  • Keep your reader charged regularly.

  • Ensure your device has a strong internet connection.

  • You can customise receipts, tax settings, and item libraries in the app.

SumUp Solo Setup Guide

The SumUp Solo is a standalone card reader with its own touchscreen, Wi-Fi, and SIM card connectivity—no phone required.

Step-by-Step Setup

  1. Power On the Device

    • Hold the power button on the right side until the screen turns on.

  2. Connect to the Internet

    • Choose Wi-Fi and connect to your network, or use the built-in unlimited SIM included.

  3. Log In to Your SumUp Account

    • Use the on-screen keyboard to enter your credentials.

    • If you don’t have an account, sign up at sumup.co.uk first.

  4. Complete Device Setup

    • Follow the on-screen prompts to update software and configure your device.

  5. Start Selling

    • Tap the charge button, enter the amount, and present the device for chip & PIN or contactless.

Tips

  • The Solo comes with a base/charger—keep it docked when not in use.

  • You can view reports and manage items via your online SumUp dashboard.

  • A printer is available separately if you need printed receipts.

Square Reader Setup Guide

The Square Reader connects via Bluetooth to your phone or tablet and is designed to work with the Square Point of Sale app.

Step-by-Step Setup

  1. Install the Square Point of Sale App

    • Download from the App Store or Google Play.

    • Create an account or log in to your existing Square account.

  2. Turn On the Reader

    • Press the power button once. A green light should blink to indicate it’s ready to pair.

  3. Connect via Bluetooth

    • Open the Square app, navigate to Settings > Hardware.

    • Tap Connect a Reader, then select the reader and complete the pairing.

  4. Enable Location Services

    • Square requires location data to process payments. Make sure this is enabled for the app.

  5. Accept Your First Payment

    • Add a product or manually enter an amount.

    • Tap Charge and follow the on-screen steps to accept a card.

Tips

  • The Square Reader doesn’t have a screen, so all interactions happen on your device.

  • The POS app allows customisation of your product library and tipping options.

  • Square supports fast next-working-day payouts.

Final Thoughts

Each card reader setup process is user-friendly, but the ideal choice depends on your business setup:

  • Choose Zettle if you want a versatile reader with a great companion app and already use PayPal.

  • Go with Solo if you prefer a device that works independently of your phone.

  • Opt for Square if you’re budget-conscious and want powerful POS features.

Need help deciding? Compare all readers here.