iPhone 13 locked to unknown Apple Account after failed carrier switch

A friend acquired a newly unlocked iphone 13. He put a new account into the phone and using a family members phone number, receives a verification number. He proceeds to continue setup, sets passcode, facial recognition, etc. This is where it gets weird. Now, looking into the network lock security it was required that the current carrier remain for another 30 days, However; Having a prepaid account from another carrier he tries force feeding this sim into the phone, rebooting and attempting this and that. Putting the phone to the side for a bit he returns to see it saying "Software update complete" and then would proceed to say that the phone was locked to the owner and was demanding he login. It would accept the passcode but he did not remembered his account username. He tried putting in the family members phone number for info and verification only to be told it was not valid or usable. Knowing the password and with the use of a PC he narrows down the username, puts in the correct password now only to be told that his account is now security locked. He goes through the process to unlock and is told during the security questions his birthday in inaccurate, giving on several attempts, different phone numbers for him to verify for use. Non of which were the number of the family member previously used nor any number he recognized. What shall he do? Support offers no assistance.



[Re-Titled by Moderator]

Original Title: Bizarre lockout

iPhone 13

Posted on Sep 18, 2025 11:14 PM

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Question marked as Top-ranking reply

Posted on Sep 19, 2025 7:39 AM

So in the end it is a problem with security questions.


Several years ago Apple transitioned to using two factor authentication instead of security questions. You can continue to use security questions if you already use them and they are working for you, but if you have problems then they no longer get direct support. You can try the directions in this support article If you forgot the answers to your Apple ID security questions - Apple Support but the article is labeled "archived" and may contain information that no longer applies. If the instructions work then fine; if they do not (e.g., you see “not enough information”*) then you will have no option but to change to the newer security method, if you can. Over the past few years Apple has been persistently encouraging users to switch to the newer two factor authentication security system. For those who have disregarded their encouraging, Apple will likely only help you to now change to two factor authentication, if even that is possible. Follow the instructions in the "Turn on two-factor authentication for your Apple ID" section in this support article --> Two-factor authentication for Apple Account - Apple Support to try to change to two factor authentication.

If you still need help, contact Apple Account support at this link ➞ https://getsupport.apple.com/?caller=cups&PGF=PGF63005

Select "Other Apple Account Topics", then "Security concerns or account compromised." This will give you a chat or telephone call option.


If Apple cannot, or will not, help you transition to two factor authentication then it is quite possible you will have to simply abandon the old account and everything it contained. In that case read the Activation Lock support request support article at: - https://al-support.apple.com/#/additional-support It may at least let you regain use of your equipment but with an "acquired" iPhone you may not even meet those criteria. In that case you will also have to say goodbye to the iPhone as well. To recycle a device read the very bottom of Apple Trade In - Apple


Good luck!


*See the third page of this discussion Unable to Reset Apple ID Security Questio… - Apple Community Some people talk about getting out of a “loop” by logging in a different way. I am not really following what they are talking about but maybe you can see if it helps.



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1 reply
Question marked as Top-ranking reply

Sep 19, 2025 7:39 AM in response to Jcv063

So in the end it is a problem with security questions.


Several years ago Apple transitioned to using two factor authentication instead of security questions. You can continue to use security questions if you already use them and they are working for you, but if you have problems then they no longer get direct support. You can try the directions in this support article If you forgot the answers to your Apple ID security questions - Apple Support but the article is labeled "archived" and may contain information that no longer applies. If the instructions work then fine; if they do not (e.g., you see “not enough information”*) then you will have no option but to change to the newer security method, if you can. Over the past few years Apple has been persistently encouraging users to switch to the newer two factor authentication security system. For those who have disregarded their encouraging, Apple will likely only help you to now change to two factor authentication, if even that is possible. Follow the instructions in the "Turn on two-factor authentication for your Apple ID" section in this support article --> Two-factor authentication for Apple Account - Apple Support to try to change to two factor authentication.

If you still need help, contact Apple Account support at this link ➞ https://getsupport.apple.com/?caller=cups&PGF=PGF63005

Select "Other Apple Account Topics", then "Security concerns or account compromised." This will give you a chat or telephone call option.


If Apple cannot, or will not, help you transition to two factor authentication then it is quite possible you will have to simply abandon the old account and everything it contained. In that case read the Activation Lock support request support article at: - https://al-support.apple.com/#/additional-support It may at least let you regain use of your equipment but with an "acquired" iPhone you may not even meet those criteria. In that case you will also have to say goodbye to the iPhone as well. To recycle a device read the very bottom of Apple Trade In - Apple


Good luck!


*See the third page of this discussion Unable to Reset Apple ID Security Questio… - Apple Community Some people talk about getting out of a “loop” by logging in a different way. I am not really following what they are talking about but maybe you can see if it helps.



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iPhone 13 locked to unknown Apple Account after failed carrier switch

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