Also question is, are iPads locked to a carrier?
iPad models equipped with wireless mobile data connectivity (3G or 4G+LTE), regardless of generation, are "unlocked" and not tied to a carrier in the United States. However, just because the iPad is sold unlocked does not mean that any specific version of the device will work on all carriers.
Beside above, what does lock your iPad mean? Apple's Activation Lock checker lets you see if an iPad or iPhone's owner has unlocked the device or not—potentially a sign that a device is stolen or not. If an iPad or iPhone is locked, this is the message that Apple's Activation Lock tool will display.
Also question is, how do I know if my iPad is locked or unlocked?
Follow these quick tips to check your device's locked status
- Look at the Cellular Data Options (Settings >Cellular).
- Test your device using at least two SIMs from different carriers.
- Find your device's IMEI and use any CTIA-Accredited IMEI checker to search Apple's GSX database.
Can a locked iPad be unlocked?
If you restore on a different computer that was never synced with the device, you will be able to unlock the device for use and remove the passcode, but your data will not be present. The only way to unlock an iPad with a passcode, other than entering the passcode, is to "restore" it to its original factory settings.