Microsoft launched an investigation last week into a Windows Phone 7 bug that caused some end users to experience unusual data transmission over 3G. Up to 50GB in some cases, even when connected to Wi-Fi.

The results of this enquiry have been divulged to the Seattle PL and according to Microsoft, it is someone elses fault.

‘We have determined that a third-party solution commonly accessed from Windows Phones is configured in a manner that potentially causes larger than expected data downloads. We are in contact with the third party to assist them in making the necessary fixes, and are also pursuing potential workarounds to address the configuration issue in case those are needed.'

Microsoft have remained tight lipped about which third party application is causing the massive data transfer but they are not ruling out other sources either as they have said they are ‘continuing to investigate this issue.'

Microsoft have said that only a very small percentage of WP7 users are affected by this rather serious issue, however for those affected I would expect they are expecting Microsoft to help pay their whopping phone bills. Networks might bend the rules a little and cover the costs of the data transfer, especially now as Microsoft have admitted there is a technical glitch on some level.

Kitguru says: Another incident which causes more damage to the flailing Microsoft Phone platform.

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