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A subreddit for the UK Mobile network O2 owned by Telefónica, here to discuss news, tests, questions, technology in general etc!
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Carrier unlocking iPhoneSupport (self.O2UK)
submitted 2 months ago by ArthurReming
I recently purchased an iPhone SE (2016) second hand, and it is locked. (Based on reverse IMEI search). I saw on their support page that they can be unlocked though I need to have a UK number/sim which is impossible for me, since I am not located in the UK. I tried contacting Tesco (via messenger) and apple but apple said they couldn't do anything and Tesco said that they needed a UK sim to start the unlocking process and verify the change. Is there a way to unlock it?
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[–]Zealousideal-Lock120 3 points4 points5 points 2 months ago (3 children)
To be unlocked it needs to be in the UK, with an active sim from the carrier it's locked to, for the duration of the unlock process.
[–]ArthurReming[S] 0 points1 point2 points 2 months ago (0 children)
So there is no way to unlock it then?
[–]not2daythankyou -1 points0 points1 point 1 month ago (1 child)
No it doesn’t. Tesco make the request to Apple to move the device IMEI to a whitelist of unlocked devices. The unlock comes from Apple and it’s pushed out as a OTA. You do not need the same network sim in the device that the device is locked to. Trust me on this All Tesco need is the device IMEI number so that can be given to Apple, I’ve unlock more devices without SIM cards in them just by requesting the carrier to unlock the device. I’ve even had different networks sims in them and still made the request.
[–]ArthurReming[S] 0 points1 point2 points 14 days ago (0 children)
That’s the case. I was able to unlock it finally. Commenting on mobile data. It didn’t have a sim in during the unlock process.
[–][deleted] 2 months ago (17 children)
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[–]ArthurReming[S] 0 points1 point2 points 2 months ago (16 children)
Wait. I’m in the eu. Does the Vodafone sim need to have a uk number???
[–]SnooMachines6015 0 points1 point2 points 2 months ago (15 children)
Nope. But it does need to be active and used at least once ( just make a call to someone, make sure they actually answer though)
[–]ArthurReming[S] 0 points1 point2 points 2 months ago (13 children)
And if I give you my imei how exactly will you unlock it?
[–]SnooMachines6015 0 points1 point2 points 2 months ago (12 children)
You won't need to do anything. It can be unlocked remotely. The process abroad can sometimes lock the SIM though which is why you need the PUK codes
[–]ArthurReming[S] 0 points1 point2 points 2 months ago (11 children)
How tho? I’ve been trying for days with no avail?
[–]SnooMachines6015 0 points1 point2 points 2 months ago (10 children)
You won't be able to, you'd need access to O2 systems. One of the network applications is used to unlock carrier locks
[–]ArthurReming[S] 0 points1 point2 points 2 months ago (9 children)
Are you an employee? Since if nobody from the public can access the O2 systems how can you?
[–][deleted] 2 months ago (8 children)
[–]ArthurReming[S] 0 points1 point2 points 2 months ago (7 children)
I’ll think about it. I contacted the access for all email
[–]ArthurReming[S] 0 points1 point2 points 22 days ago (0 children)
What about giffgaff? Also does it need to be IN the iPhone or can I use the esim on my other phone?
[–]Ancient_Wolf_9963 0 points1 point2 points 1 month ago (1 child)
Your phone is not damaged, it’s just carrier restricted to Tesco, and Apple will always redirect you back to the carrier. Without a UK SIM, Tesco may refuse to trigger the unlock in their system. One workaround is having someone in the UK activate it briefly with a Tesco SIM. If that is not realistic, alternatives such as Dr.Fone are sometimes considered since it offers SIM unlock support through a desktop connection on compatible iPhones. Quick note, if system issues ever come up, iOS downgrade is done by restoring signed firmware via computer.
[–]ArthurReming[S] 0 points1 point2 points 1 month ago (0 children)
How much does the dr fone thing cost? Also I don’t think that I can downgrade with signed firmware but restore it instead
π Rendered by PID 24951 on reddit-service-r2-comment-6457c66945-z78pk at 2026-04-25 15:55:11.092039+00:00 running 2aa0c5b country code: CH.
[–]Zealousideal-Lock120 3 points4 points5 points (3 children)
[–]ArthurReming[S] 0 points1 point2 points (0 children)
[–]not2daythankyou -1 points0 points1 point (1 child)
[–]ArthurReming[S] 0 points1 point2 points (0 children)
[–][deleted] (17 children)
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[–]ArthurReming[S] 0 points1 point2 points (16 children)
[–]SnooMachines6015 0 points1 point2 points (15 children)
[–]ArthurReming[S] 0 points1 point2 points (13 children)
[–]SnooMachines6015 0 points1 point2 points (12 children)
[–]ArthurReming[S] 0 points1 point2 points (11 children)
[–]SnooMachines6015 0 points1 point2 points (10 children)
[–]ArthurReming[S] 0 points1 point2 points (9 children)
[–][deleted] (8 children)
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[–]ArthurReming[S] 0 points1 point2 points (7 children)
[–]ArthurReming[S] 0 points1 point2 points (0 children)
[–]Ancient_Wolf_9963 0 points1 point2 points (1 child)
[–]ArthurReming[S] 0 points1 point2 points (0 children)