Factory SIM unlock code of Sony C6603 Xperia Z is available, means permanent unlocking of Sony C6603 Xperia Z is possible using a correct NCK code. We can unlock all Sony easily by IMEI. There is no need to change the firmware to unlock it if the phone prompts for an unlock code after changing the SIM card. Unlocking of Sony C6603 Xperia Z by code is the recommended method as you will not lose the phone's warranty. It is the fastest and secure method to unlock the phone by IMEI code. An unlocked phone can be used with all networks SIM card around the world.
To unlock your phone, we need only 15-digits IMEI. You can find the 15-digit correct IMEI by dialing *#06# on the phone.
The unlocking of the Sony C6603 Xperia Z by code is a recommended method by the manufacturer. Since the unlock code comes from the manufacturer database, it will unlock your phone 100%.
All new phone from T-Mobile and MetroPCS comes locked to "Unlock App," it cannot be unlocked by code. You need to place the order for the "Device Unlock App."
Before placing the order for a Sony unlock code, check that phone prompts for unlock code and attempts are left to enter the code. We have written a complete procedure to check remaining unlocking attempts in Sony phone.