Also, the software giant said that it has fixed the upgrade issue that was blocking Insiders from installing the latest preview of the operating system on devices that weren’t running Windows Phone 8.1. As with every release available through the Fast ring, there are a number of known issues that Insiders should be aware before installing Windows 10 Mobile build 10581.

Here are the known issues for Windows 10 Mobile 10581

As with previous builds, after applying this update, the device may appear at a black screen for about 5 minutes when transitioning between the spinning gears and the final stages of the update. Just be patient and it should progress past it. The exact time will vary by device. After moving some apps to an SD card, those apps might crash. The workaround is to reboot your phone and those apps should work fine thereafter. Deploying Silverlight apps through Visual Studio to your phone won’t work in this build. You can deploy UWP apps to your phone without any issues. If you restore a backup from a phone that had a different resolution, you may end up with a corrupted Start experience. The workaround is to go to Action Center (which won’t be corrupted) then Settings > Personalization > Start and apply a different background picture. You will be unable to set your default save locations via Settings > System > Storage and will not correctly reflect the current storage settings. If you are using an SD card in your phone, it will show up as a garbled name in Storage settings. Whatever you had configured for your save locations in the previous build will be the same.

As you can see the operating system still contains a few bugs, but overall the Windows 10 Mobile is getting on each build. In this build, Microsoft has fixed a bunch of new bugs, and as we get closer to the final release, we’re going to start getting more stable builds with fewer bugs. Source Microsoft All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.