The phone needs a SIM card to connect to the mobile network. You can surf the internet with the available SIM cards.
1. Go to
Settings > 
SIM cards & mobile networks.
2. Tap
to enable Mobile data.
Tip
You can swipe down the Status bar and tap
Mobile data to enable mobile data on the Control center.
1. Go to
Settings > SIM cards & mobile networks.2. Tap
to enable Mobile data.Tip
You can swipe down the Status bar and tap
Mobile data to enable mobile data on the Control center.