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Locked SIM Card; Needed PUK Code

Journeyman

Locked SIM Card; Needed PUK Code

I have an iPhone 11. I mistakenly locked the SIM card by entering the SIM PIN incorrectly. It is requesting that I enter a PUK code to unlock it. Otherwise, WiFi cannot be used and I cannot make calls; my phone essentially has no use as of now.

 

When I try to make a call (it fails), for example, the following message shows up:

Enter PUK

Your SIM cannot be accessed. Please call your carrier to obtain your PUK code.

 

How do I obtain my PUK code?

I called both Apple and Sprint for help to no avail. How do I fix this? Is the only remaining option to purchase a new SIM card? 

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