htc one x sim not connecting to network

[Anonymous]

htc one x sim not connecting to network -
My phone does generally do roaming and I've never had a problem before. Also there is no o.s. balance as know this can be a cause too. I took my phone out of my pocket and had the option of sim lock chosen on this reboot screen which is advised in the "tell info" as hard key reboot , when you press volume down, then power button and get a screen like what you get on a computer when you press f12. I've rebooted my phone even trying to fix this problem and I still can't receive or make any calls or txts. I am still roaming at the moment and have brought my phone to a 02 shop in Ireland but they couldn't work out what was wrong.Just says sim cannot connect. Help would be massively appreciated.

[MI5]

Sorry, I don't understand the question. What exactly is the problem? Can you not connect when roaming or at any time? Is it calls or internet?

[perksie]

I think a call to O2 to check your account might be a good idea.

There have been a few posts lately about people getting turned off when roaming.