In general, iPads have two types: support Wi-Fi & Cellular or only Wi-Fi version. If your iPad belong to the first one, try the methods below.
Method 1:Check the cellular network coverage area
If the cellular network is unavailable, it will lead to much convenience. You cannot call or text to your friends or parents. This is a big trouble. Therefore, it is important to ensure you are standing on a place covering cellular network. Following the steps below:
If you are in your country: Tap on Settings >Select Cellular Data.
If you have gone abroad: Set up your iPad for data roaming. Go to Settings > Pick Cellular> Touch Cellular Data Options >Choose Data Roaming.
Method 2: Unplug the SIM card and plug it in again
The SIM card is related to the carrier’s cellular network. It can distinguish your iDevice from others. It may be loose and cause to poor contact. Therefore, you can take out the SIM out and then put it in again.
Method 3: Inspect a Carrier Setting update
If both your cellular network and SIM card work well, then check out some problems relating carrier settings:
Step 1: Ensure that your iPad connects to the Wi-Fi or cellular network.
Step 2: Touch Settings > General > About. If your iPad needs to update, there will be an option for you to pick.
Note: If your SIM card is a new one, you should download the carrier settings for the new carrier.
Method 4: Contact your carrier
iPad no service may be caused by the problems involving the carrier or account. In this condition, you should contact your carrier.
First, check for that your account whether is active or not..
Second, confirm that there are no outrages in your area.
Third, inspect that your iPad isn’t blocked from getting cellular service.