Re: iPhone 4s excessive cellular data usage
11-12-2011 10:16:33 AM
This has been discussed multiple times and is not specific to the 4S or any iPhone for that matter.
The device is not sending chunks or data at some strange time during the night.
AT&T simply bills data usage in blocks throughout the day, typically in the early morning hours. Those large chunks of data are simply a total of the data used since the last time data was "billed" to your account.