I accept with information: The proper use of unlock is to refer to the ability to use the iPhone with SIM cards from all carriers or simply locked to the carrier you purchased it with and there is a difference between two very similar screens.
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You are all right
I think my problem is an individual one because the store I have bought it from changed it for me free of charge I'm not newbie and now that the factory unlocked is unlocked but I think I was the first one experienced the problem now I have another one with the same model number which didn't need the black snow too be unlocked
The last one even needed blacksnow too work well
You mean the store changed it to you to factory unlocked? or did it just activate on ur SIM? and by store can you be more specific like location/country?
If it is factory unlocked then just put the SIM and iTunes will activate it.