How to know if iPhone is locked or not?

thang3112 Said:

"Please let me know my iPhone [...] is locked or unlocked?"

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Troubleshooting a Locked iPhone:

Hold it Right There!

Being Locked Out...

Enter the passcode incorrectly too many times, and you'd likely be locked out for good. So, hold it right there, and refer to this link: If you Forgot the Passcode on your iPhone, or your iPhone is Disabled - Apple Support. It would be the one you've always entered. If you do not know it, then look for it in a location you may have stored it in.

No Success?

Contact Apple support:

If you cannot get the above link to work, then contact Apple Support.

Apple Contact Info:

• Contact Us - Choose Locations
• Proceed from there, as necessary

Why the Wait:

Phone calls are taking a bit to go through at the moment, due to lots of calls. With the Coronavirus Pandemic, many are at home at the moment, with much time on their hands to contact Apple. So, just stay on the line, and you will get through 

Hi thang3112,

If you meant you don't know if your iPhone is locked or unlocked as in carrier lock, here's how to check out:

Go to Settings -> General -> About

Scroll down until you see Carrier Lock, if you see a message that says "No SIM restrictions", it means that your iPhone is unlocked. If you see something different, your iPhone is locked to that carrier.