How can I tell if my iphone is unlocked?

[#1]

I have a jailbroken IPhone but I can't get the giffgaff sim to work in it?

I have unlocked the phone twice and it all seems ok - just can't get giffgaff to work.

 I am on OS  5.1.1.

I have looked at how to giffgaff an iphone but network >Cellular data network doesn't exist!!

Any help appreciated.

[#2]

have you activated the giffgaff sim?

[#3]

See if a friend or relative has another operators sim you can try in it. Think thats the only way to tell if its locked or not.

[#4]

try another sim in the phone other than the network its locked to ;-)

[#5]

Has the sim been activated?

[#6]

How to setup your iPhone: http://support.giffgaff.com/app/answers/detail/a_id/628

In a nutshell:

Settings > General > Network > mobile data network

Under APN put
APN: giffgaff.com
Username: giffgaff
Password: password

leave visual voicemail empty (we don't have it)

under MMS put
APN: giffgaff.com
Username: giffgaff
Password: password
MMSC: http://mmsc-ac.mms.o2.co.uk:10021/mmsc
MMS Proxy: 193.113.200.195:8080
Max MSG size:2097152

[#7]

Follow this link mate.

http://support.giffgaff.com/app/answers/detail/a_id/628

[#8]

Make sure your sim has been activated, go to https://giffgaff.com/dashboard and check if your Mobile Number is under your login name, if not it could take up to 24 hours for it to process.

[#9]

How did you unlock ?
Have you just Jailbroken as that's not unlocking

[#10]

Did you activate the giffgaff SIM's?  All giffgaff SIMS are supplied partially activated, which means that you put them in any phone and you can test signal strength but thats all.

The SIM must be activated (woken up) by adding £10 credit to it. Then giffgaff will give you a new mobile number plus an additional £5 credit for free.