o2 mobiles.co.uk

[scottw]

I took out contract via mobiles.co.uk on o2 network last oct 2019. I upgraded early still having 12 months left on old contract, last eve via o2 website.  i have tried to unlock old device by giving 02 the imei number and o2 have come back saying the device is not an o2 device?? and they cannot unlock. i'm confused because my monthly payment goes to o2 not mobiles.co.uk. can someone help me please?

[MI5 · Accepted solution]

@scottw 

That means the device is not locked.

Just put a non O2 sim in it and it will work fine.

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

[scottw]

thank you so much. I wish the o2 email would of told me that. thank you

[MI5]

You're welcome @scottw 

It's just another of O2's ambiguous error messages.