Windows 10 Phone Preview Install GUIDE for Lumia 920, 930 and others

Discussion in 'TechCat Blog' started by Justin, Feb 15, 2015.

By Justin on Feb 15, 2015 at 4:49 PM
  1. Justin

    Justin Administrator
    Staff Member

    Dec 6, 2014
    #1 Justin, Feb 15, 2015
    Last edited: Apr 11, 2015
    Windows 10 Technical Preview for phones video guide

    Windows 10 for any Lumia phone step by step guide

    1. Download the Windows Insider app.
    Press ... > about > make sure Sys free space is 300MB or more.
    If there isn't enough space, make full reset with Windows Phone Recovery Tool.
    2. Go to
    Download and install certificate.
    3. Edit WiFi connection, enable Proxy
    4. Open Insider app, click get builds
    5. You will get Enroll page, do not Enroll yet!
    6. Switch to WIFI settings, turn off proxy.
    7. Switch to Windows Insider app and now you can enroll for Windows 10 Technical Preview.
    Choose Fast option.
    8. Check Settings > Phone update.
    If it can't find updates, you may need to reboot your phone and enroll again (without a proxy now).

    You should not try this guide on any other brand phone than Nokia Lumia.
    It won't work on HTC, Samsung and may even brake your phone!
    Lumia 5xx does not meet minimum specs for Windows 10 Update.

    Windows 10 Technical Preview for phones (9941.12498) on Nokia Lumia 920.


    How to revert back to Windows 8.1?

    Use official Microsoft Windows Phone Recovery Tool.
    It will reflash your phone with fresh Windows 8.1.

    You can backup all SMS, settings to Onedrive too.
    Settings > backup > check things to backup.

    Confirmed working models:
    Lumia 1520
    Lumia 1320
    Lumia 1020
    Lumia 930
    Lumia 925
    Lumia 920
    Lumia 920 at&t
    Lumia 820
    Lumia 638
    Lumia 620
    Lumia 520

    Did not work:
    Lumia 530
    Lumia 535
    Samsung ativ s
    HTC 8X

    Update 2015-02-22

    Update 2015-03-28
    Microsoft announced expanded supported device list!

    Update 2015-04-10
    Official Windows 10 update is out! No workarounds required for:
    • 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
    Just download Insider app from Windows Store and enroll.


Discussion in 'TechCat Blog' started by Justin, Feb 15, 2015.

    1. edutchieuk
    2. Gor Mirzoyan
      Gor Mirzoyan
      My Lumia can't download the certificate he is showing that the IE is having trouble with this page.
      Please help me?
      Can you admin send file to [email protected] ?
      Please please
    3. Original
      Read the whole guide, not just a title...
      Microsoft has disabled this hack.
      Though they will launch an official update for wider range of devices soon.
      Garnik Shahbazyan likes this.
    4. TheMr
      Very nice
    5. aakash
      when i navigate this on 620 say erorr why?
    6. kapitan Awesome
    7. bereket wagaw
      bereket wagaw
      good but i cant download the certification, it just failed what can i do help me
    8. Garnik Shahbazyan
      Garnik Shahbazyan
      Thank you
    9. akshay katla
      akshay katla
      I cant download the file given by the link
      Doesn't work on my Lumia 920
    10. Justin
      Windows Phone 10 preview build 12534. Including Project Spartan, new calendar and contacts apps.
    11. Original

      New Windows 10 Technical Preview build now available for phones!

      Today we are releasing Build 10051 of the Windows 10 Technical Preview for phones to the Fast ring. This build not only supports more phones, but also has tons of exciting new features that you’ll be able to try for the first time.
      Here is what’s new
      Project Spartan
      New mail and calendar apps
      New Phone and Messaging apps
      New People app
      New Maps app
      Updated App Switcher
      Last edited: Apr 11, 2015
    12. Stephen
      Now the big question is... has anyone figured a hack to put the new update on the Lumia 930 seeing they left that one out of the mix? I am downgrading to my old 920 once I get my SIM adapter in the mail tomorrow until the update to the 930 comes out.

      Any help would be great!
    13. Wilson Samiano
      Wilson Samiano

      This is awesome!
    14. Justin
      This is from official MS blog. They say the 930 is not supported yet because of screen resolution.
    15. Rui Filipe
      Rui Filipe
      I did the upgrade on my lumia 920, but did not work properly.
      I cannot put the pin from my SIM of Vodafone.
      Among other errors that sensed, this was the most important.
      I returned to downgrade to windows 8.1
    16. Original
      You can always remove your pin from the sim...
    17. nekys
      Are they going to release more images for more devices or that's it?
    18. Justin
      An update for Lumia 930, Icon and HTC phones is coming later.
    19. Janus00
      I can't get the certificate.
      where can i get it?
    20. Original
      Just login to insider app and what's it. :) You don't need a ceritificate anymore.
    : windows 10

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