If you want to unlock/unblock the iPhone 4S from it's Optus network lock ,use remote unlock service which is safe ,easy and also permanent unlock solution. You can get the remote unlock service from SimpleUnlocking.com by providing your Country and Current network name along with your IMEI number.

Yes,Samsung Galaxy S will work on 3G with frequencies HSDPA 900 / 1900 / 2100 .

If your phone is locked to a network then the phone will work with that network only . But,If you unlock the Samsung Galaxy S then then it will other GSM networks. To unlock the phone you can use unlock code. You can get the unlock code along with unlocking instructions from TheUnlockSpot.com by specifying your Country ,Current Network name and IMEI number.

Yes,Samsung Galaxy S will work on 3G with frequencies HSDPA 900 / 1900 / 2100 .

If your phone is locked to a network then the phone will work with that network only . But,If you unlock the Samsung Galaxy S then then it will other GSM networks. To unlock the phone you can use unlock code. You can get the unlock code along with unlocking instructions from TheUnlockSpot.com by specifying your Country ,Current Network name and IMEI number.

You can unlock HTC One X Phone using Unlock code which is safe and easy. You can get the unlock code from your service/network provider or from online sites like TheUnlockSpot.com . There you have to give your Country and current network name along with your IMEI number to get the unlock code. They will give you the unlock code along with instruction on how to unlock. Follow the instruction correctly and unlock your HTC One X .

You need to specify the phone model ,Country and Current network to get exact answer. The model you specified "NOKIA BL5 CB" is the battery model number ,The phone model will be like Nokia 6600 or Nokia 6030 . Anyway, If you want to unlock network lock you can use unlock code. If you want to unlock security lock try the default security code like 1234 or 0000 or 12345 . If those didn't work then you can use master reset code to reset your Nokia . It will reset your phone, removing any security locks(not network locks) . You can get the Unlock code and Master reset code for some old model Nokia Phones from Unlocking4Free.com .

You can get the unlock code for Alcatel One Touch 213(OT-213) from your network provider or from online sites like SimpleUnlocking.com .There you have to give your Country and current network name along with your IMEI number to get the unlock code.

You need to specify the phone make and model to get exact answer. Anyway, You can get unlock codes for almost all GSM phones from SimpleUnlocking.com . But,For Apple iPhones they provide remote unlock service. For other GSM phones they provide Unlock code with easy instructions on How to unlock the phone.

You can get the unlock code for Nokia 5130 C-2 from your service provider or from online sites like Mobile-Unlocker.com . There you have to give your Country and current network name along with your IMEI number to get the unlock code. They will give you the unlock code along with instruction on how to unlock. Follow the instruction correctly and unlock your Nokia 5130 C-2 .

Do you need the code to unblock the network(Carrier) lock of the Blackberry ? . If yes, Then you can get the unblock/unlock code for Blackberry 8520 from Mobile-Unlocker.com . There you have to give your Country and current network name along with your IMEI number to get the unblock/unlock code. They will give you the unblock/unlock code along with instruction on how to unlock. Follow the instruction correctly and unlock your Blackberry 8520 .

Do you want to unblock/unlock the network lock of Motorola ?
If yes,then Motorola GSM phones can be unblocked/unlocked using Unlock code. You need to specify the model of the phone in order to get exact answer,but you can mentioned the specs of the camera in your mobile .Anyway,You can get the unlock code for your Motorola from your service provider or from online sites like SimpleUnlocking.com . There select you phone model and you have to give your Country and current network name along with your IMEI number to get the unlock code. They will give you the unlock code along with instruction on how to unlock. Follow the instruction correctly and unblock/unlock your Motorola phone .