How can I unblock my old phone?

[S3zs]

I both my iphone from O2 around 6 year ago but I'm not using this phone around 4 year now. My question is how can I unblocked to use this phone with any other network? I using my SIM card with other phone now. The O2 can unlock for me?

[TallTrees · Accepted solution]

This may help @S3zs 

Guide: Unlocking an O2 phone to use a different SIM card 

[S3zs]

Thank you 

[TallTrees]

You are welcome @S3zs 

Take care... Best wishes 

[Oxonian]

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@S3zs wrote:

I both my iphone from O2 around 6 year ago but I'm not using this phone around 4 year now. My question is how can I unblocked to use this phone with any other network? I using my SIM card with other phone now. The O2 can unlock for me?

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Are you sure @S3zs that your 'phone is locked ? This thread suggests that O2 ceased to lock 'phones in mid-2018, so depending when "...around 6 year ago..." actually was, it might not be locked :-

Solved: Is my phone unblocked? - O2 Community

https://community.o2.co.uk/t5/Tech-Support/Is-my-phone-unblocked/td-p/1688506

[S3zs]

I'm not sure with the 6 year I think is more. /iPhone 7/ I put one other brand SIM card but the phone not except that 

[Enlli]

@S3zs 

You can find out if your iPhone is locked by going to Settings > General > About. If "No SIM restrictions" appears next to Carrier Lock, your iPhone is unlocked.