Unlock old iPhone 3GS

[Anonymous]

Hello, any help much appreciated.

I have a very old iPhone 3GS which still seems to be locked to my provider, which I think at the time was still O2. I've just started a new job and have been given a new SIM to put into an old phone and use for business. What is the official procedure for getting my phone unlocked?

thanks

[Cleoriff · Accepted solution]

This is the official procedure check here http://www.o2.co.uk/help/phones-sims-and-devices/unlocking-an-o2-mobile-to-use-on-a-different-networ...

Have you tried the sim in the new phone to check it is actually locked?

[MI5]

You will need a free "simply PAYG sim" from here https://www.o2.co.uk/shop/sim-cards/pay-as-you-go?cm_mmc=googleuk-_-PPC_Direct_Free_Sim-_-Brand-Core...