When a customer makes an order for an unlock code he thinks that there will be only one code, unfortunately the truth is a bit different.

If you want to unlock your phone you can make an order on here: sim-unlock-net/Samsung.

When an e-mail with an unlock arrives you may notice that there are four different codes.

The first one called NCK is used to unlock the main network for example O2.

The second one called SPCK is used to unlock service provider lock for example like TESCO network

The third one NSCK is a second code to unlock the subprovider if the fiirst one does not work.

The last one called Unfreeze or Defreeze is used to reser the code counter in your phone,

We hope that this information will make your unlocking a lot easier.