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Unlocking Samsung S8+ - Master Code/MCK Required - Urgent Please

3: Seeker


we are experiencing exactly the same problem as many others on this forum, the phone, (Samsung S8+), was bought on a contract some years ago and have been on a sim only deal for another year or so and now trying to move the phone to Virgin.

Have received and tried the NUC code from Vodafone but this is not working and showing the same symptoms as in the below and many other trails. We are now paying for a Virgin sim that we cant use and the number has been ported and my wife is without a phone which is not brilliant as she is on the vulnerable list as well.

The Virgin sim works perfectly Ok in my 'unlocked/sim free' phone but not in my wife's phone tied to Vodafone. Spoke with Vodafone on a chat a few days ago and was incorectly told that I had to speak with Virgin, which I did, but sorry but this needs to be resolved by Vodafone and I believe it require a Master Code to reset the phone before I can use the NUC code. 

- 'SIM network PIN blocked. Enter SIM network PUK.'

Following entry of Virgin supplied PUK's (yes tried both), we are getting this message...

- 'Network unlock request unsuccessful.'

Can a Vodafone team member please contact me ASAP to get this sorted, (Master Code/MCK required), I have been with Vodafone for 25 years or so appreciate some support with this.

Other similar issues:


Many thanks in advance,

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17: Community Champion

Yes your correct that your not alone with this @Top_viking 

The faster Ofcom pushes for unlocked phones out of the box the better.

As account access isn't available via this forum you'll need to contact the Vodafone Social Media Team's via Contact-us-for-account-specific-queries to get the mastercode.

I wish you all the best with this. 

Current Phone > Samsung Note 20 Ultra 5G - SM9860 Snapdragon.

Samsung One Ui 2.5  / Android 10.

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3: Seeker

Hi @bandofbrothers,


We are neither on Twitter or Facebook and have already tried VF Chat without any progress. The number has now been ported so we are in a bit of limbo land and paying for something that we cant use.


Is there another way to communicate with the NUC team to get this resolved, my wife is on the vulnerable list and really need the phone.


Many thanks,



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