How to use your Network Unlock Code

The Network Unlock Code or NUC (sometimes called a Network Unlock PIN or NUP, or Network Control Key or NCK) allows you to unlock a mobile phone from its original network.

This page details what you need to do if you’ve received your NUC but need help with how to use it on your phone.

If you’ve not received a NUC but need one, go to our Request a NUC page.

If you need to unlock your phone in another way, see our Unlocking your phone page.

Which phone do you want to unlock?

Choose the make and model of your phone to see the step-by-step process to apply your NUC. Both the code and process are specific to the make and model of your phone.

Insert a non-Vodafone SIM
Turn on the phone. The screen will display Network Locked
Enter your NUC
Press OK

Your device is already unlocked. To use it on a different network, just insert a non-Vodafone SIM. Then follow any on-screen instructions to set up features like iCloud and FaceTime. If you experience any problems, use the Apple trouble-shooter

Insert a non-Vodafone SIM
Follow the on-screen instructions to set up iCloud and iMessage/FaceTime

Turn off the radio on the phone. Failure to do this could result in it becoming unusable.
From the home screen, go to Options > Advanced Options > SIM card
Type mepd to bring up the personalisation options
Type mep then press and hold the ALT key and press 2. You are now prompted for the unlock code
Type in the NUC and press Return
Restart your phone by removing and replacing the battery

Turn off the radio on the phone. Failure to do this could result in it becoming unusable.
From the home screen, go to Options > Advanced Options > SIM card
Type mepd to bring up the personalisation options
Type mep then press and hold the ALT key and press 2. You are now prompted for the unlock code
Type in the NUC and press Return
Restart your phone by removing and replacing the battery

Turn off the radio on the phone. Failure to do this could result in it becoming unusable.
From the home screen, go to Options > Advanced Options > SIM card
Type mepd to bring up the personalisation options
Type mep then press and hold the ALT key and press 2. You are now prompted for the unlock code
Type in the NUC and press Return
Restart your phone by removing and replacing the battery

Turn off the radio on the phone. Failure to do this could result in it becoming unusable.
From the home screen, go to Options > Advanced Options > SIM card
Type mepd to bring up the personalisation options
Type mep then press and hold the ALT key and press 2. You are now prompted for the unlock code
Type in the NUC and press Return
Restart your phone by removing and replacing the battery

Insert a non-Vodafone SIM
Wait until your phone reads Enter Unlock Code or SIM Network Unlock PIN
Enter your NUC
The message Network Unlock Successful will be displayed

Please note: If your phone does not ask for the unlock code and it only says Network Locked, contact us and we'll provide you with instructions on how to enter the code.

From the home screen, go to Settings
Press Security and Privacy > SIM Card
Under the Phone Network Lock heading, tap any item in the list. This will prompt for the MEP unlock code.
Enter your NUC

Insert a non-Vodafone SIM
Turn on the phone. The screen will display Network Locked
Enter your NUC

Turn off the radio on the phone. Failure to do this could result in it becoming unusable.
From the home screen, go to Options > Advanced Options > SIM card
Type mepd to bring up the personalisation options
Type mep then press and hold the ALT key and press 2. You are now prompted for the unlock code
Type in the NUC and press Return
Restart your phone by removing and replacing the battery

Insert a non-Vodafone SIM
Turn on the phone. The screen will display Network Locked
Enter your NUC

From the home screen, go to Settings
Press Security and Privacy > SIM Card
Under the Phone Network Lock heading, tap any item in the list. This will prompt for the MEP unlock code.
Enter your NUC

Turn off the radio on the phone. Failure to do this could result in it becoming unusable.
From the home screen, go to Options > Advanced Options > SIM card
Type mepd to bring up the personalisation options
Type mep then press and hold the ALT key and press 2. You are now prompted for the unlock code
Type in the NUC and press Return
Restart your phone by removing and replacing the battery

Insert a non-Vodafone SIM
Turn on the phone. The screen will display Network Locked
Enter your NUC

Insert a non-Vodafone SIM
Turn on the phone. The screen will display Network Locked
Enter your NUC

Insert a non-Vodafone SIM
Turn on the phone. The phone will prompt to enter the Unlocking Code
Enter your NUC
Press OK

Insert a non-Vodafone SIM
Turn on the phone. The phone will prompt to enter the Unlocking Code
Enter your NUC
Press OK

Insert a non-Vodafone SIM
Turn on the phone. The phone will prompt to enter the Unlocking Code
Enter your NUC
Press OK

Please email nucresolutions@help.vodafone.co.uk for the unlocking tool.

Insert a non-Vodafone SIM
Turn on the phone. The phone will prompt to enter the Unlocking Code
Enter your NUC
Press OK

Insert your new network SIM card
Connect the device to your PC or laptop using a USB cable
Go to My computer and double-click on R207 (it may appear as a CD-ROM icon) to install the device
Open an internet browser and type 192.168.x.x in the address bar to open the homepage for the device (the full gateway code can be found in the battery compartment of your device)
When prompted, enter your unlock code and choose Okay

Make sure your device is fully charged or connected to a power supply
Reset the device
Insert your new network SIM card
Turn the device on. It will display Invalid SIM
Connect the device to your PC or laptop using a USB cable
Open an internet browser and type 192.168.8.1 in the address bar
When prompted, enter your unlock code and choose Apply

Insert a non-Vodafone SIM
Turn on the phone. The phone will prompt to enter the Unlocking Code
Enter your NUC
Press OK

Your device is already unlocked. Simply insert a non-Vodafone SIM to use on another network.

Turn on the phone
From the home screen press the Call button (or enter the dialing menu) and then enter the following text: 2945#*855# (an unlock menu will automatically appear)
Select Service Provider Lock
Enter your NUC and press Ok (the phone will be reset automatically)
Switch off the phone insert the SIM card for your new network

Turn on the phone
From the home screen press the Call button (or enter the dialing menu) and then enter the following text: 2945#*722# (an unlock menu will automatically appear)
Select Service Provider Lock
Enter your NUC and press Ok (the phone will be reset automatically)
Switch off the phone insert the SIM card for your new network

Turn on the phone
From the home screen press the Call button (or enter the dialing menu) and then enter the following text: 2945#*850# (an unlock menu will automatically appear)
Select Service Provider Lock
Enter your NUC and press Ok (the phone will be reset automatically)
Switch off the phone insert the SIM card for your new network

Turn on the phone
From the home screen press the Call button (or enter the dialing menu) and then enter the following text: 2945#*870# (an unlock menu will automatically appear)
Select Service Provider Lock
Enter your NUC and press Ok (the phone will be reset automatically)
Switch off the phone insert the SIM card for your new network

Turn on the phone
From the home screen press the Call button (or enter the dialing menu) and then enter the following text: 2945#*160# (an unlock menu will automatically appear)
Select Service Provider Lock
Enter your NUC and press Ok (the phone will be reset automatically)
Switch off the phone insert the SIM card for your new network

Turn on the phone
From the home screen press the Call button (or enter the dialing menu) and then enter the following text: 2945#*440# (an unlock menu will automatically appear)
Select Service Provider Lock
Enter your NUC and press Ok (the phone will be reset automatically)
Switch off the phone insert the SIM card for your new network

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone
Follow the displayed instructions and enter your NUC when prompted

Turn off the phone
Insert a non-Vodafone SIM
Wait for the SIM Unlock screen to open
Type in your NUC and press enter

Turn off the phone
Insert a non-Vodafone SIM
Wait for the SIM Unlock screen to open
Type in your NUC and press enter

Turn off the phone
Insert a non-Vodafone SIM
Wait for the SIM Unlock screen to open
Type in your NUC and press enter

Turn off the phone
Insert a non-Vodafone SIM
Wait for the SIM Unlock screen to open
Type in your NUC and press enter

Turn off the phone
Insert a non-Vodafone SIM
Wait for the SIM Unlock screen to open
Type in your NUC and press enter

Turn off the phone
Insert a non-Vodafone SIM
Wait for the SIM Unlock screen to open
Type in your NUC and press enter

Turn off the phone
Insert a non-Vodafone SIM
Wait for the SIM Unlock screen to open
Type in your NUC and press enter

Turn off the phone
Insert a non-Vodafone SIM
Wait for the SIM Unlock screen to open
Type in your NUC and press enter

Turn off the phone
Insert a non-Vodafone SIM
Wait for the SIM Unlock screen to open
Type in your NUC and press enter

Your device is already unlocked. Simply insert a non-Vodafone SIM to use on another network.

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. Enter NCK will be displayed
Enter your NUC
Press Validate or OK

Insert your new network’s SIM card into your phone and turn it on
Wait until your phone reads “Enter Unlock Code” or “SIM Network Unlock Pin”
Enter your NUC into the blank field
The message “Network Unlock Successful” will be displayed and the phone will be unlocked

Remove your SIM card from the phone and turn the phone on
Key in #7465625*2877#
Turn the phone off and then on again and then enter the following: #7465625*638*your NUC#
The phone should now be unlocked

Please note: When entering a non-Vodafone SIM, if the phone displays a message asking for a password then enter your NUC

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. You'll see a prompt to enter the Unlocking Code
Enter your NUC

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. You'll see a prompt to enter the SIM network unlocking code
Enter your NUC

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. Enter NCK will be displayed
Enter your NUC
Press Validate or OK

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. Enter NCK will be displayed
Enter your NUC
Press Validate or OK

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. Enter NCK will be displayed
Enter your NUC
Press Validate or OK

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. Enter NCK will be displayed
Enter your NUC
Press Validate or OK

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. Enter NCK will be displayed
Enter your NUC
Press Validate or OK

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. Enter NCK will be displayed
Enter your NUC
Press Validate or OK

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. You'll see a prompt to enter the SIM network unlocking code
Enter your NUC

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. You'll see a prompt to enter the Unlocking Code
Enter your NUC

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. You'll see a prompt to enter the SIM network unlocking code
Enter your NUC

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. The phone will prompt for the SIM network unlocking code
Enter the your NUC and tap Unlock

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. You'll see a prompt to enter the SIM network unlocking code
Enter your NUC

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. The phone will prompt for the SIM network unlocking code
Enter the your NUC and tap Unlock

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. You'll see a prompt to enter the SIM network unlocking code
Enter your NUC

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. The phone will prompt for the SIM network unlocking code
Enter the your NUC and tap Unlock

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. Enter NCK will be displayed
Enter your NUC
Press Validate or OK

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. Enter NCK will be displayed
Enter your NUC
Press Validate or OK

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. Enter NCK will be displayed
Enter your NUC
Press Validate or OK

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. Enter NCK will be displayed
Enter your NUC
Press Validate or OK

Insert a non-Vodafone SIM
Turn on the phone. The will phone show the SIM Network Unlock PIN
Enter your NUC and press unlock. The screen will display Network Unlock Successful

Insert a non-Vodafone SIM
Turn on the phone. The will phone show the SIM Network Unlock PIN
Enter your NUC and press unlock. The screen will display Network Unlock Successful

Insert a non-Vodafone SIM
Turn on the phone. The will phone show the SIM Network Unlock PIN
Enter your NUC and press unlock. The screen will display Network Unlock Successful

Insert a non-Vodafone SIM
Turn on the phone. The will phone show the SIM Network Unlock PIN
Enter your NUC and press unlock. The screen will display Network Unlock Successful

Insert a non-Vodafone SIM
Turn on the phone. The will phone show the SIM Network Unlock PIN
Enter your NUC and press unlock. The screen will display Network Unlock Successful

Insert a non-Vodafone SIM
Turn on the phone
Enter your NUC

Insert a non-Vodafone SIM
Turn on the phone
Enter your NUC

Turn off the phone
Insert a non-Vodafone SIM
Turn on the phone. The phone will prompt for the network unlocking code
Enter your NUC

Insert a non-Vodafone SIM
Connect your K4203 modem to your computer/laptop
Install all the software and drivers. The Vodafone dashboard will be opened automatically when it's completed
When prompted, enter your NUC
Create a new profile and enter in your new provider's APN details

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