Me and my girlfriend using Nokia 5800 and 5230 mobile phone respectively with the TATA Docomo sim card. I have heard that docomo are offering a free 3g service for a one week. So thatís why I am looking to try the 3g service on my mobile phone. I want to configure my mobile phone with the 3g setting for the same. But I donít know how to configure the 3g service setting. Someone please help me to activate 3g service in my mobile phone.