samsung galaxy s2- Was I scammed locked/blocked phone?

[CeriMeechanxo]

So basically i bought a new phone off of somebody, not from a shop , it had no sim or memory card in it and any network sim i put in it it will just come up 'no sim card inserted' is there anything i can do to fix this phone?

 

[TimeThief]

That somebody played with you (I think so), cuz it cannot happen that you insert a sim and it says 'no sim card inserted'
Or possibly, the phone is registered to the old sim card (I don't think this could happen).
Ask the person you got it from.