How does remote unlocking work?
A Remote phone unlocking is an unlocking method used to unlock from Network lock.If you provide Mobile brand,Model,IMEI,country and Network provider to which it is locked now.They will unlock your phone from the Network Database itself.There are many providers available to provide Remote Unlocking Service.I would suggest the site Mobile-Unlocker.com here you can get Remote Unlocking Service for iPhone,3,3GS,4,4S,5 and unlock your phone from Service Provider lock.
GSM phones can be unlocked by typing in a code that is uniquely based on their IMEI number and original wireless provider. You will need to send us, either attached to your payment or in a separate email, three things: 1) the exact make and model of your mobile phone (look under the battery inside the phone for this), 2) the wireless provider that the cell phone is currently locked to (not the one you intend to use later), and 3) the exact IMEI number of your cell phone (you can find this underneath the battery as well, but it is better to get this by typing *#06# into your cell phone). With this information, we will search for your mobile phone’s unique unlock code. Once we have found it, we will send it to you by email, along with complete instructions on how to enter it into your phone to permanently unlock it.