I did research and thought to keep original software but didn't expect lack of above features, I bought it in pre-order so I wanted to have ASAP but now the prices are dropped for WW version if u want to consider.
For Me I have Tencent Version with the latest FOTA update,and it is set to English language, and still suffering from below points:1.Contacts are not fully converted to English, still you will see chineese fonts,especially international numbers. 2.Tw...
Same happened with me in the first week, try reset the APN settings and might work for sometime and then will stop again, finally I played with APN configuration and it is working.