Discuss iPhone restore to 4.2.1?? at the iOS 4.x (iPhone OS 4.x) - Hackint0sh.org; Originally Posted by Olethros
This is just what I have read, I'm sure many sellers ...
It is locked to 3UK, my contract SIM works in the iphone, after restoring it to undo the hack.
Now appealing to Three to get the lock removed, they said no and I've got it escalated.
I don't understand their reasoning that it's to protect against fraud & stolen phones -
If the phone is stolen/"found"/involved in a insurance scam then, locked or unlocked, the IMEI can be barred, and that bricks the phone.
Unlocking the phone doesn't make it any easier to change the IMEI (which is illegal anyway). Not unlocking the phone doesn't mean they retain the power to magically bar it, as they'd have been able to bar it with the phone unlocked!! :\
Carriers can be very inflexible about this. Remember that IMEI blacklisting is their last resort deterrent. The phone is then non functional and not only have they lost any remaining subsidy owing on the phone, they also cannot count on the phone bringing any usage revenue.
Apple supposedly has deals with the carrier to get a cut of the usage revenue over the period of the contract. I'm not sure how this is handled when the carrier decides to blacklist a phone. Maybe that has something to do with it.
By keeping phones carrier locked but not IMEI blacklisting them. The carrier can guarantee that any additional usage (even with a new owner - as in your case) will result in revenue for them and not a competitor.
Also, the carrier could still choose to blacklist the phone in a few months from now if the original owner repeatedly refuses to continue paying back the remaining subsidy on the phone until the contract term is up.
This is why I always buy outright/unlocked phones. Carrier subsidised phones are a world of pain.
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