1. Windows Central Question's Avatar
    i downloaded the update, and when the gears screen was finished, a sad face appear, but when install builds from slow ring it works fine. i have a lumia 950xl
    04-30-2016 05:04 AM
  2. Mad Cabbie's Avatar
    You will need to use WDRT and roll back to the last release build. When you download Windows Device Recovery Tool, if you don't already have it, the safe bet is to download from Microsoft, rather than a third party. Open it, connect your phone and if you can power it down. Once it vibrates WDRT should pick it up. If not, click the device not found button.

    Best of luck, and why not sign up to the site and get access to lots of info regarding builds etc. You will also gain access to any issues other users have had with preview builds.
    04-30-2016 05:40 AM

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