Contact your service provider.
NCK means network Code key, which can be used to access the network..
In reality, for sure i do
You can get network phone code for sony ericsson t303 from Mobile-unlocker.com
If your phone does not have a SIM card then it is classified as a Code Division Multiple Access (CDMA) phone. If you have a CDMA phone, then your phone is not unlockable.
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You need to look on your wireless router and then check the code and then type that in to your PSP.
PUK (phone unblocking code) can only be obtained via the Cell phone network provider
You cannot use a WCDMA phone on a CDMA network. Wideband Code Division Multiple Access (WCDMA), despite its name, is different from and not part of Code Division Multiple Access (CDMA) networks. WCDMA is one type of 3G technology and is an extension of Global System for Mobile Communications (GSM) networks.
If you want to unlock your Nokia 5300 mobile phone from the network lock,you can get network unlock code from Mobileunlocksolutions.com at reasonable price.Here they ask you to specify the country name,current network provider and IMEI number of your mobile phone.
The NP code is the same as the NUC (Network Unlock Code). The phone is locked to the Virgin network and requires a code from them to use another sim from a different operator. You may also find your local market trader or independent phone shop can unlock it for about £10.
it might have a locked code. you can change the settings on your phone so that you have to type in a code when you turn it on.
trying to check this account