Setting up the Square Card Reader involves preparation, unboxing, software installation, account creation, and device pairing. This process transforms your smartphone or tablet into a POS system. Key steps include: 1. **Preparation**: Ensure you have a compatible device (iOS or Android 10 or later), a stable internet connection, and the necessary hardware (USB-C or Lightning port). 2. **Unbox and Prepare**: Open the packaging, remove the reader and charging cable, inspect the components, and charge the reader if the battery is low. The included adapter suits standard US outlets. 3. **Download the Square App**: Download the "Square Point of Sale" app from the App Store (iOS) or Google Play Store (Android). Grant necessary location and camera permissions. 4. **Create/Log In to Square Account**: Sign up or log in to your Square merchant account, providing essential business details and banking information for direct deposits. 5. **Connect the Reader (Pairing)**: * Enable Bluetooth on your mobile device. * Open the Square Point of Sale app and navigate to the hardware section. * Select your Square Card Reader from the available devices and follow the on-screen prompts to connect securely (this usually takes under a minute). After connecting, you should test the reader with a sample card to ensure functionality before processing your first live payment.

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