Hello, I am in Beijing, China at the moment and are unable to use a china mobile sim card in my mobile phone as it appears on the screen: "sim card not valid" I have seen JoeGons does help people unlock their phones, if you see my message could you please help me unlock my mobile please. These are the details: Mobile: Nokia 1600 Network: Orange, United Kingdom IMEI: 358635010171099 Thank You! Antonio