What causes the PUK prompt to show on the iphone?

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Level 1

9 points

What causes the PUK prompt to show on the iphone?

I work at an at&t store and a few customers came in, with a message on their iphone asking them to put in their PUK number, i want to know what is causing that?

Windows XP

Posted on May 27, 2008 4:18 PM

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Answer 1

firestar87 Author

Level 1

9 points

May 27, 2008 7:46 PM in response to Jason L

ok, but in what situation would an iPhone user have to enter their sim pin, how do one even get to that option on the iPhone? how do you prevent from having to punch in the sim pin?

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Answer 2

May 27, 2008 9:00 PM in response to firestar87

its in settings... you'd need to enter your pin for your sim if you lock it to protect the data on it. cuz you know... some people don't like it when you take their phone and jack their numbers to important people.

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Answer 3

Jason L

Community Specialist

May 27, 2008 4:22 PM in response to firestar87

Hey firestar87,

This happens when the incorrect SIM pin is entered multiple times, it can happen with any cell phone.

+"You can enter up to 3 incorrect answers for the SIM PIN before iPhone asks you to enter the PUK code. To get the PUK code, contact your mobile service provider. Note: If you enter the incorrect PUK code too many times (10 incorrect guesses), the SIM may become permanently locked and you'll need to replace the SIM.+

+Note that the SIM PIN is separate from the Passcode Lock (Settings > General > Passcode Lock) which comes up when waking from sleep and turning on."+
http://support.apple.com/kb/HT1316

Jason

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Answer 4

May 27, 2008 4:22 PM in response to firestar87

The Pin Unlock Key is requested after the SIM PIN is entered incorrectly too many times (I think three or four).

Generally, only customer service can look up the PUK, and entering the PUK incorrectly too many times will permanently destroy the SIM card on most phones. (I don't know specifically if this is how the iPhone works, but that's the standard.)

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