iPhone Generation : 4
Unlocked : official
Current Firmware : 4.0.2
Current network: hotlink
iTunes Version : 10
PC/MAC : Win XP
Jailbreaking software : no
Problem Encountered : unknown data usage
Steps Taken So Far : restore fresh copy and do nothing to it

Hi, i just bought iphone 4. The firmware is 4.0.2. The phone uses data by itself even in standby mode. I tried restored it and didnt sync anything to it and just put there overnight. It uses 500Kb++ data. Does anyone know where the phone is using the data? Thanks.

But i havent install any apps, so no push notification;

and for mails, i not yet setup any account.

I just restored it and didnt do anything extra to it, and it uses data... my credit used rm30++ for 2 days on data...