Preview for Developers

Preview for Developers
2379 reviews
By installing you agree to the Terms of Use and other terms

More from Microsoft Corporation

Download size

< 1 MB

Last updated



Works with

  • Windows Phone 8.1
  • Windows Phone 8

App requires

  • data services
  • web browser component
  • HD720P (720x1280)
  • WVGA (480x800)
  • WXGA (768x1280)
What's this?

Supported languages (2)

English (United States) 中文(简体)
show languages
Now registered Windows Phone developers can receive pre-release OS updates on their dev phone, directly from Microsoft! You can use this app to opt-in your phone to receive early Windows Phone updates before they are generally available, enabling you to run and test your app on real hardware running the latest OS before your customers. 
•         You must meet one of the following three requirements: (a) have an active Windows Phone Dev Center account; (b) have an active App Studio account; OR (c) be running a registered developer device (‘dev unlocked’ phone)
•         Updates will only include the Microsoft update, and not additional OEM drivers/firmware
•         To ensure the best experience, your device must be running the latest OS release (currently 8.0.10322.71) or greater to receive early updates via this program
•         You will be required to accept additional terms & conditions within the app prior to opt-in
•         You CANNOT REVERT to a prior OS version once you have taken an update via this program
Key features:
•         Access to latest pre-release Windows Phone updates
•         Ability to opt-out of pre-releases and only receive production Windows Phone updates
show details


  • by hashan 4/23/2014
    Enjoying 8.1 😆😆😆
  • by Danille 4/23/2014
    Não consegui usar ainda...
  • by Andy 4/23/2014
    This app does not even work. Everytime I try to run it, keeps giving me the error message The Microsoft account service is unavailable right now. Try again later. This is a complete scam. I will be very upset if my phone cannot even check for updates anymore either.
  • by Karthik 4/23/2014
    got 8.1 update on 520 :) :) 3 tile option is great in this
  • by mustafa 4/23/2014
    Thank you Microsoft !! 8.1 is an awesome update !!😋
  • by Amit 4/23/2014
    Thanks Microsoft. 8.1 love ❤ I am Indian but changed region to USA to get Cortana ❤ ❤ ❤
  • by Dragos 4/23/2014
    Great windows phone 8.1 Nokia Lumia 920.
  • by Christopher 4/23/2014
    A friend at MS (& MSDN Newsletters) finally got me convinced, boy this the a shot 💉 in the arm for WP!! Great work 🏢!
  • by Vivek 4/23/2014
    Awesome :)
  • by J Claudio 4/23/2014
    Perfeito!!! Windows 8.1 esta a cada dia melhor \o