If you are a Lumia 925 or 1020 owner and in the Developer Preview program, then it's likely that you already have Windows Phone 8.1 on your device along with an annoying problem that causes both models to freeze under certain conditions.

The only known workaround for now is by setting detailed status (for apps like Weather and Calendar on the lockscreen/Glance) to none, as well as disabling the lockscreen password and reducing the Glance active state to 30 seconds if set higher.

Microsoft's Kevin Lee confirmed the issue and posted to a support topic specific to the Lumia 1020 with the following:....
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