# How to use Data (for product pages)

> Markdown version of https://globalesim.app/how-to-use-data/ | machine-readable site guide: https://globalesim.app/llms.txt

- Scan the QR code you received by email to install your new eSIM line.
- Ensure your device is not in Airplane mode before proceeding.
- If you have both your main line and the eSIM active, go to cellular settings and select your GlobalSIM line for cellular data usage.
- In your device settings, enable data roaming for the GlobalSIM line.
- If data still isn’t working after following these steps, contact our 24/7 support team via live chat for assistance.