QUOTE(Mr.Docter @ May 13 2013, 03:52 PM)
I don't know how to monitor, too. This is first time using smartphone lol.
Once I enable data usage, it keep on sending notification that my data is flowing every 1-5mb but I don't know where is the source. Damn scary if you are using prepaid

Use wifi whenever is possible, or switch to postpaid, turn off data plan when not use, from what I know, Lumia tend to use wifi over data, it use data for checking small things only, when certain update or large image/video files to upload/download, it will stop the data flow and wait you to get on wifi (unless you set to ignore it)
apps no control of dataflow, it might be some apps you installed sending data in out all the time.
p.s. check on background what is running, turn off what you don't need (it won't have instant update anyway, windows 8 limitation which might be fixed with win8.1)
This post has been edited by mashimarow: May 13 2013, 05:35 PM