How to get restriction code for Nokia 6131 phone

[Anonymous]

I have just picked up my phone to make a call and there is a message  'enter restriction code' I do not know this, can anyone tell me how to obtain this code. Thanks

[MI5]

I'm assuming it's been working fine previously and you haven't changed anything?
Also, have you tried your sim in another phone?
If that's the case I'd suggest you get a new sim card and do a sim swap to keep your number and contract details.
Call CS and they will post you one out or go into a o2 shop.
If you get a sim in the post you'll need to call when it arrives to get the new sim activated and account swapped.

[MI5]

Just another thought, has anyone been messing with your phone since you last used it?

[Anonymous · Accepted solution]

Do you normally use an O2 sim card in the phone? When it asks you to enter a restriction code on a Nokia it normally means the handset is locked to another network.