Distribution of the new build 10051 (56) of Windows 10 Technical Preview for smartphones based on Windows Phone has begun

    Today at 20.00 (GMT), the distribution of the new Windows 10 Technical Preview build for some Windows Phone-based smartphones began.





    Updated on Build 10051 (56) *:

    The update is available through Windows Insider on the Fast ring channel. The update size is about 450 MB.
    Supported Devices
    • Lumia 1020
    • Lumia 1320
    • Lumia 1520
    • Lumia 520
    • Lumia 525
    • Lumia 526
    • Lumia 530
    • Lumia 530 Dual Sim
    • Lumia 535
    • Lumia 620
    • Lumia 625
    • Lumia 630
    • Lumia 630 Dual Sim
    • Lumia 635
    • Lumia 636
    • Lumia 638
    • Lumia 720
    • Lumia 730
    • Lumia 730 Dual SIM
    • Lumia 735
    • Lumia 810
    • Lumia 820
    • Lumia 822
    • Lumia 830
    • Lumia 920
    • Lumia 925
    • Lumia 928
    • Microsoft Lumia 430
    • Microsoft Lumia 435
    • Microsoft Lumia 435 Dual SIM
    • Microsoft Lumia 435 Dual SIM DTV
    • Microsoft Lumia 532
    • Microsoft Lumia 532 Dual SIM
    • Microsoft Lumia 640 Dual SIM
    • Microsoft Lumia 535 Dual SIM


    The update is not available for Lumia Icon, Lumia 930 and Lumia 640 XL due to a window scaling bug in the OS, which makes the firmware unworkable on these devices.
    They promised to add support for phones from other manufacturers in future builds.

    Major change in the update:

    • The assembly includes a preview version of the Spartan browser
    • Office removed from the firmware, a new version of Office is expected in the coming weeks
    • New Mail and Calendar Applications
    • New applications for Phone and Messages
    • New People app
    • New Maps application
    • Updated App Switcher

    Bugs fixed:

    • The keyboard is fixed and improved. The dot, comma, emoji keys are displayed directly on the keyboard, without the need for additional “dives” inside the keyboard. Language switching is implemented by long pressing the & 123 button. There is also an option to replace the emoji button with a language switch button
    • Cortana icon fixed for correct scaling on tiles
    • Fixed a bug that caused the application of photos to crash when trying to attach a photo to OneNote, Facebook or email
    • Fixed a bug leading to the inability to synchronize Microsoft Band with Windows 10
    • Fixed tile photos

    Known bugs:

    • Automatically uploading photos and videos to OneDrive may not always work
    • Any Cortana Bluetooth interaction does not work
    • After the update, some applications that were installed on the SD memory card cannot be started. To fix this, uninstall and reinstall applications
    • About 1% of the time a ringtone may not work with incoming phone calls
    • Spam filter does not work
    • To earn MMS, you need to roll back to Windows phone 8.1 through the Windows Phone Recovery Tool, and then install a new build of 10s, relevant for those who are upgrading from the previous build of 10s
    • On phones with 512 MB of RAM, some applications may crash
    • Flight mode cannot be turned on
    • Data Transfer Cannot Be Disabled
    • Some phones may not start Insider Hub
    • On some phones, the alarm button may not fit on the screen
    • There is no Office in this assembly, Word, Excel, PowerPoint and OneNote files cannot be opened


    * At first 10051 was sent, but after problems and their solutions the rest flew 10056, and all new insiders immediately receive build 10056.
    UPD: Updating does not go painlessly. For many, phones say they cannot connect to the server and recommend checking the date and time.
    UPD2: Gabriel Aul has announced that there is a problem with the servers on their side. The update has become available from the old build, for those who install Windows 10 for the first time - the problem will be solved in the near future.
    UPD3: Obviously, the problem with receiving the update is still not resolved - now many cannot receive it due to the large influx of comers. Gabriel Aul writes that the servers are overloaded, and the problem is being solved.
    UPD4:Judging by the messages on the w3bsit3-dns.com forum, the update has gone, the servers come to life.
    UPD5: Microsoft recognized the problems , the server will be shut down for about 2 hours to solve the problems. The opportunity to upgrade so far remains only for those who had the previous build of 10s.
    UPD6: Updated!

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