If you’re the owner of the Nokia Lumia 925 or the Lumia 1020, it seems that there are reports that there is a Windows Phone 8.1 bug that has affected quite a few users of either device. This is a bug that supposedly freezes the phone where the device fails to wake up from its sleep mode, thus prompting users to force a soft reset in order to get it to work again.
This is affecting devices that run either the developer preview version of Windows Phone 8.1 or the carrier update version, so it does not seem to be build-specific. The good news is that Microsoft has since acknowledged that there is a problem and that they are looking to fix it, although no word on when that will be.
According to Kevin Lee, the Partner Director of Program Management at Microsoft, they have managed to identify the issue. “During the last two months we have been reaching out for more and more data and devices to systematically reproduce and narrow down the root cause. It turned out to be a power regulator logic failure where in combination with multiple reasons the device fails to power up the CPU and peripherals after idling into a deep sleep state.”