Go to O2 customer services or an O2 retail store to sort out the problem. Make sure that it is actually an O2 SIM card, if you can't be bothered to go to O2 just get jailbreak software I don't recommend it though, if I were you I'd get off your backside and get to someone who's with O2...
If your 3GS is locked, you can't insert a SIM card.
No it has to be unlocked
on my iphone 3g screen is locked so it can not spin anymore. How do I open it to spin again. thank you
Yes. The hack can bypasses iCloud security system for a locked iPhone 5.
If you bought an iPhone 5s from eBay and it is locked with a fingerprint lock, it will not be possible to unlock it if you do not have the Apple account.
yes you can if ur iphone is unlocked you may have a choice of any sort of simcard but if its locked you can only have that type of simcard
The Apple iPhone is generally locked to the phone company selling them. You cannot swap SIM cards.
double tap the home button while the iphone is locked
There are some organisations that can do this for you, it is very difficult to do this yourself. It depends on which carrier the iphone is locked to. There is a site that can unlock every iphone for you, they are called stockunlocks and then your problem is solved.
Of course, the iPhone 3G and/or the original iPhone will take any normal sim card; the 3G iPhone will take the 3G sim as well.
iPhone 3GS uses a normal SIM Card, iPhone 4 uses a Micro SIM Card. If you buy an iPhone 4 you have to choose an operator which sells/supports Micro SIMs. Note that depending where the iPhone is brought (Apple, Verizon, O2) it might be locked to a certain operator.
It will stay locked until yew unlock et