Old phone won't recognise SIM

I'm trying to put my current Three SIM in an old Orange PAYG phone but it's not working. Is it because it's contract and the phone is PAYG? Does it have to be an Orange PAYG SIM?

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mrew42  May. 30, 2013 at 12:57

if its an Orange PAYG phone then it could be locked to Orange. Using any other SIM will not work if its locked.
Nothing to do with PAYG, it's the network

CTPAHHIK  Jun. 5, 2013 at 12:20

Three SIM requires 3G phone - if you have 2G phone SIM will not be recognized.


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