It's recommended to only use operator locked devices with SIM cards from the specific operator it was designed to work with. Certain devices may not be able to delete these operator features.

Previous menu items, preinstalled operator settings for MMS and internet, and shortcuts to the operator’s online services may still appear on your device. This could cause additional charges due to having to send the device in for repair. NOTE: If you experience issues trying to unlock your device, please do not enter the code more than twice as this could block your device. Once obtained and entered you will be able to enter SIM cards from any network into your handset.

Different phones have different unlock code input instructions.

Your Network Provider may charge an admin fee to obtain this code.

The network lock on your handset is part of a contractual agreement between your Network Provider and Sony Xperia.To unlock your Sony Xperia device to all networks you must contact your Network Provider to get a NUC / NCK code. Send the device in for repair to reset the NUC/NCK counter.Contact the network operator to get a replacement NUC/NCK code.

I exceeded the maximum NUC / NCK attemptsĭepending on the country, you can take either of these actions: NOTE: The device will become hard locked if too many unsuccessful attempts are made.

Enter the Network Unlock Code / Network Control Key (16 digits).

If prompted, enter the PIN code for the SIM card (4 digits).

Insert the SIM card from your new operator.

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