Hi

Friend is in Australia at the moment and his phone has no service.
His travel itinerary was NZ - Australia - Solomon Islands - Australia. Now, when on his first leg he had no issue roaming in Australia, he then goes to the Solomons and it doesn't work, he is not there that long so wasn't too worried about it however he is now back in Australia and he has no service.

This is the second time this has happened on exactly the same trip, when he got back to NZ the first time it happened his phone he went to telecom store and a new sim got him working straight away. He needs access while in Australia so desperate to get it working. 

I suspect that the sim and or phone has not changed whatever roaming settings it needs to now that it is back in NZ.

Any ideas?