Some of our readers reportedly facing date and time error while installing Windows 10 Mobile Build 15254.249 (10.0.15254.249). Here is a workaround suggested and tipped by some of our readers that might help.


Just set your phone’s time to 15th Feb or 5-6 days back and then try to install the update. It has worked for many it seems.

This also shows that this perhaps is a server-side issue and Microsoft needs to fix it at their end. In case you want to check what fixes and improvements the Build 15254.249 bring with itself click here. This issue was not present in the known issues list reported officially.

Known issues in the Build 15254.249:

On Windows 10 Phones, PDFs cannot be rendered in Microsoft Edge.Download one of the free PDF reader apps.

Microsoft is working on a resolution and will provide an update in an upcoming release.