main_icn_My_Vodafone main_icn_Search main_icn_Chevron_right main_icn_Chevron_down main_icn_Close main_icn_Menu social-facebook social-google-plus social-linkedin social-twitter social-youtube main_icn_Community_or_Foundation main_icn_Location main_icn_Network_signal


NUC unlocking Sony Xperia X1

2: Seeker



I've received my NUC code for my Sony Xperia X1 (F5321) and checked my IMEI several times but each time I enter the NUC code into my phone I get a locking unsuccessful message.


Please can someone advise on how to get my phone unlocked?


many thanks

View more options
17: Community Champion

Hi @NorthyCC 


First don't try too many times or you'll run the risk of hard locking your phone which mean it'll need to be sent away by Vodafone to have it's counter reset.

In it says…

  1. Turn off the Xperia device. 
  2. Insert the SIM card from your new operator.
  3. Turn on the Xperia device.
  4. If prompted, enter the PIN code for the SIM card (4 digits).
  5. Enter the Network Unlock Code / Network Control Key (16 digits)

From Vodafone it says…


How to use your NUC

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


With some Sony phones occasionally a code needs to be keyed in before the Nuc.

If you perform a forum search there are threads discussing how to unlock a Sony phone.

This is a similar thread Unlocking-Sony-Xperia-1. 


Customer services or the Vodafone Social Media Team's via Twitter DM or Facebook Messenger can check the Nuc is correct and walk you through the process of using the Nuc.


Also make sure the alternative network sim card is activated so connects to their network and mobile date.

Current Phone >

Samsung Z Fold³ 5G.

Previous Phone >

Samsung Note 20 Ultra 5G - SM9860.

View more options