Hi. Anyone here using Lumia 900 with Hotlink Broadband ? How to set the settings ?

Hi. I have some question to ask. I using Lumia 900 , previously I was using Maxis Simcard on it and just changed to another Digi Simcard. At the begin, the phone call out , but now cannot call out and just can receive call only.

May I know what happens to My Phone and how to reset the settings. I went Digi Service Centre and the girls say is My Phone problem , she kept saying is My Phone settings problem, is Lumia 900 common problem , once you change to another cellular network then you need to reset the settings .

Any Idea on how to backup SMS to Computer ?

I having problem with My Lumia 900 . Now it hang at the main screen and I press the button nothings happen. I want to restart it also cannot.

The battery indicator showing question mark .

I saw online there is apps for backup SMS , anyone tried it ?

I got somethings want to ask you guys.

Why My Lumia 900 automatic showing the " Square box m and n " How to turn off it ?

Possible to downgrade My OS after I upgrade the OS?

If I upgrade My OS , will I lost My SMS ?

My Phone always like auto touch the speech even I didn't touch it and how to solve it ?

Any Case for Nokia Lumia 900 ? My Lumia 900 dropped and dent the top corner of the phone. Sad....

I not yet update My Lumia 900 , if backup , all favorite in Internet Explorer will lost ??