Best Practices for Handling the Device

Identify the Location of the NFC Chip on Your Device

Failures in Tap to Phone transactions are often caused by delays in positioning the card correctly on the device. The NFC chip location varies between manufacturers and models, and identifying the ideal zone can prevent this issue. Tips for locating the NFC chip:

• Check the mobile device's user manual, which often includes a diagram indicating the physical location of the NFC chip (front, back, or top).

• Test in a staging environment by tapping the card while the application is in test mode.

• Listen to the sounds emitted by the application, which distinguish between successful and unsuccessful taps.

• Move the card calmly, without abrupt movements, until you find the ideal position. Test both sides (front and back).

This practice helps minimize failures, ensuring fast and efficient transactions in production environments.

Disable the Phone’s Battery Saver Mode

Android's battery saver mode can terminate background processes or restrict power allocation to the NFC chip, reducing its efficiency and range. This may cause failures in terminal creation, session setup, or card reading during tap transactions. We recommend disabling this function during the process to ensure proper device operation and maintaining a good battery level to avoid interruptions.

Stay on Wi-Fi and Avoid Using the App During Network Changes

A stable connection is essential for payment data exchange and receipt transmission. To ensure successful transactions, avoid using the application in situations that affect radio signal propagation, such as:

• Entering or exiting elevators, buildings, or construction sites.

• Moving into shadow areas (Wi-Fi/4G dead zones).

• Traveling or transitioning between different network coverage areas.

Remain still next to the customer during the transaction to prevent network fluctuations or switches that could interfere with payment processing and authorization.