Thank you for posting in the Apple Support Communities. I understand you're not able to access your cellular data.
In your screenshot, I see a "No Service" alert in the top left corner of your screen, and if you don't have a cellular connection that will explain what you see under Settings > Cellular. In addition to the steps you've already tried, there are a few others that may help If you see No Service or Searching on your iPhone or iPad :
These steps should cover a number of possible causes for this issue. I hope they help!Check your coverage area
Make sure that you're in an area with cellular network coverage. Then follow these steps:
- To turn cellular data on or off, go to Settings, then tap Cellular or Mobile Data. If you're using your iPad, you might see Settings > Cellular Data.
- If you're traveling internationally, make sure that your device is set up for data roaming. Go to Settings > Cellular > Cellular Data Options > Data Roaming
Restart your iPhone or iPad
Restart your device. If you're not sure how to do this, follow these steps.
Check for a Carrier Settings update
To manually check for and install a carrier settings update:
- Make sure that your device is connected to a Wi-Fi or cellular network.
- Tap Settings > General > About. If an update is available, you'll see an option to update your carrier settings.
- To see the version of carrier settings on your device, tap Settings > General > About and look next to Carrier.
If you insert a new SIM card into your iPhone or iPad, you need to download the carrier settings for your new carrier.
Reset your Network Settings.
Go to Settings > General > Reset > Reset Network Settings. This also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you've used before.
Contact your carrier
Issues with your carrier or account might affect your service. Contact your carrier to:
- Verify that your account is active and in good standing.
- Make sure there are no outages in your area.
- Check that your device isn't blocked from receiving cellular services and is set up with the right data plan.
Only your wireless carrier can access and manage details about your account. If you need help finding your wireless carrier's service page, use the Apple carrier-support article or an online search engine.
Get more help
If your carrier confirms that there's no issue with your account or network, but you still can't connect to a cellular network, contact Apple Support.
If you see an alert next to No Service, learn what you can do.
Take care.