is iPad model A1430 supporting the 4G Cellular?

Yes. its the AT&T branded Cellular version.

Hi, I do have the same issue.

If the iPad support 4G network, but I couldn't find the activating button for the service.

All I get is cellular Data On/Off, nothing more.

Please help

Regards

If its not in Airplaner mode, the cellular feature is permanently activated. You can turn Data or no Off to avoid Data Roaming charges. But the cellular connection is always on, unless you put it in Airplane mode.

You should get the name of your cell company in the top left corner if its connected to it.