My iPhone says that my SIM card isn't compatible with the phone. How can I fix this?

[Sorcha]

The phone was bought in England (O2) and I'm living in Ireland. The O2 shop says that it should be working, but it's not.

 

[tnl_x]

get a nev sim card.

 

[OhConfusedOne]

i hear dropping it in the toilet works.

possibly kicking it?!

 

[xXxADAMxXx]

Check if your phone and card are the same company