MCK needed?

[Paralaur]

Hi,

I'm trying to use a Smarty SIM with my mum's Samsung phone so she can move away from her O2 PAYG sim.

I'm getting a "SIM network PIN blocked. Enter SIM network PUK." screen come up when I put the Smarty SIM in the device and have seen a few posts on forums saying this means I actually need a MCK number to unlock the device? 

I've got a PUK code from Smarty and a PUK and unlocking/unlatching code from O2 but none of these have worked and I don't want to enter an incorrect code again and risk freezing the device entirely so it's useless as it's my mum's only way of getting in touch with people. 

Please can anyone advise on what my next steps should be here? 

Thank you!

[Oxonian]

@Paralaur 

Welcome to this O2 customer to customer community forum. I assume that you have already read :- 

Unblock your mobile device | Phones sims and devices | Help | O2

https://www.o2.co.uk/help/device-and-sim-support/unblock-your-phone

If so, you need to contact O2. Unfortunately, the members of this community cannot access accounts or offer other direct help.

I suggest that you message O2 on social media :-

Facebook : https://o2uk.co/O2CFB

X (previously known as Twitter) : https://o2uk.co/O2CTW

Instagram : https://o2uk.co/O2CIG

The social media team are based in the UK and have a good reputation for solving problems. 

A complete schedule of how to contact O2 is in :-

Guide: How to find help & contact O2 

[MI5]

Customer services won't have a clue @Paralaur 

You'll need help from @Dave-O2 or @Kei-M_O2 

[Dave-O2]

Thanks for the tag @MI5 

@Paralaur Can you please drop me a PM with your mobile number and the device's IMEI?

[Paralaur]

Thanks all for your help!

@Dave-O2 I've dropped you a PM - many thanks!