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Enter MCK. network unlock code blocked. Too many incorrect attempts

Chaz85
Level 1: Joiner
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I have have just took over my father's phone which he was EE but tried to unlock so it would take my O2 sim card. Followed all the steps (well I thought I had) but now it's saying enter mck l. Network unlock code blocked. Too many incorrect attempts. I am confused 🤔 what do I have to enter and do I get this from O2 or EE as this was a contract phone phone from EE, but my dad has now upgraded. Please help.!! 

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MI5
Level 94: Supreme
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@Chaz85 

You need to talk to EE

I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)

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MI5
Level 94: Supreme
  • 127014 Posts
  • 614 Topics
  • 21894 Solutions
Registered:

@Chaz85 

You need to talk to EE

I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)
Message 2 of 2
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