Unlocked iphone not activating sim over wifi

[Anonymous]

I have an unlocked iphone4 that was locked to the o2 network. When I try to activate a sim of a different carrier over wifi it doesn't activate, it says no service. 

[Cleoriff]

Hi @Anonymous

Did you get the phone unlocked properly?

http://www.o2.co.uk/help/phones-and-devices/unlocking-an-o2-mobile-to-use-on-a-different-network#qs

I ask because if it was unlocked you shouldn't be having this problem?

A forum guide here

http://community.o2.co.uk/t5/Other-Products-Services/Unlocking-an-O2-phone-to-use-a-different-SIM-card/td-p/540294http://community.o2.co.uk/t5/Other-Products-Services/Unlocking-an-O2-phone-to-use-a-different-SIM-card/td-p/540294

[MI5]

What do you mean by "activate by wifi" ?
All you need to do is put sim into phone and switch it on.....

[Bambino]

You don't need to have a sim in a phone to connect to a WiFi network either.

[Anonymous]

I put the new sim in and it doesn't do anything except say no service when I am connected to my wifi. But the sim activates when I connect to itunes only. 

[Anonymous]

I bought the phone second hand so I will have to ask the original owner if they got it unlocked properly

[Cleoriff]

Re your statement above about buying second hand.....

Apart from any WiFi issue does this phone work properly otherwise? Are you able to connect to the internet?

[MI5]

Connecting to iTunes should complete the unlock if it has been unlocked properly.
I'd check the IMEI number to make sure the phone isn't barred http://www.checkmend.com/uk/

[Anonymous]

Is it possible to get the phone unlocked again if it hasn't worked properly

[Cleoriff]

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@Anonymous wrote:

Is it possible to get the phone unlocked again if it hasn't worked properly

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It depends whether it has been barred or not...Follow @MI5's advice about checking the IMEI