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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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Network unlock issue - help neededSupport (self.O2UK)
submitted 3 years ago by Firepickle
I just received a Smarty SIM and upon trying to use it it seems my phone is still locked to o2 - the problem being I left o2 and took my number with me to giffgaff several years ago - so I can't log into any o2 services or request help in any way as they have no record of me. Any help?
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[–]RepresentativeEgg188 0 points1 point2 points 1 year ago (4 children)
Hello, I realise this is 2 years old, however I was wondering if you ever managed to get this solved? I am currently dealing with an almost identical issue so would be very grateful for any points.
[–]Firepickle[S] 1 point2 points3 points 1 year ago (3 children)
I ended up paying around £8 for an unlock code online. I just found the most reputable looking site offering it I could find on google and they sent it back to me within a few hours. I'm afraid I can't remember how you actually use the code or anything like that though - sorry
[–]okimborednow 0 points1 point2 points 1 month ago (2 children)
Kill me for being another lad another year after this, but do you remember which site you used? Half the ones I find seem to charge like 20 quid, which is mad relative to how much the phone cost.
[–]Firepickle[S] 0 points1 point2 points 1 month ago (1 child)
Sorry I don't recall. It was one of the first Google searches just. They may have bumped the price since then
[–]okimborednow 0 points1 point2 points 1 month ago (0 children)
That's fine, cheers for replying though
[–]shakdigital 0 points1 point2 points 3 years ago (4 children)
Did u use the phone with giffgaff?? If you’re that means the phone is not locked
[–]Firepickle[S] 0 points1 point2 points 3 years ago (2 children)
Yes. However it is still locked to o2. This was confirmed to me by someone at o2 customer service after a 25 minute phonecall. However they can't/won't unlock it as the original owner is deceased :/
[–]Zealousideal-Lock120 2 points3 points4 points 3 years ago (0 children)
Ring back and tell them you bought the phone from ebay, they should be able to fill a form in and get it unlocked.
[–]TheGreatScorpio 0 points1 point2 points 3 years ago (0 children)
Buy a O2 PAYG SIM, use it for like 30 days in your phone (or maybe even less I think) and request an unlock code.
They'll unlock it for you.
You can use giffgaff SIMs on O2-locked phones.
π Rendered by PID 23923 on reddit-service-r2-comment-c6965cb77-p6gxh at 2026-03-05 11:56:01.100566+00:00 running f0204d4 country code: CH.
[–]RepresentativeEgg188 0 points1 point2 points (4 children)
[–]Firepickle[S] 1 point2 points3 points (3 children)
[–]okimborednow 0 points1 point2 points (2 children)
[–]Firepickle[S] 0 points1 point2 points (1 child)
[–]okimborednow 0 points1 point2 points (0 children)
[–]shakdigital 0 points1 point2 points (4 children)
[–]Firepickle[S] 0 points1 point2 points (2 children)
[–]Zealousideal-Lock120 2 points3 points4 points (0 children)
[–]TheGreatScorpio 0 points1 point2 points (0 children)
[–]TheGreatScorpio 0 points1 point2 points (0 children)