How to Upgrade Windows Phone 8 to Windows Phone 8.1

Hello Cortana


Follow the following upgrading steps:

  1. Register as Preview Developer on . You can use your Live account to register
  2. On your Phone, open Windows Phone Store
  3. Looking for Preview for Developers app on Store. You can see picture 1 and 2
  4. Install and run it
  5. Follow steps to confirm for activating Preview for Developers program
  6. If you can’t find Preview for Developers app on Store, you can change your region to US for a while
  7. On Windows Phone Settings, run phone update
  8. You should obtain the updated firmware for prerequisite of Windows Phone 8.1. See Picture 3
  9. If not (fail), try again for a few minutes to run phone update
  10. After updated firmware,  your Windows Phone will restart
  11. After you obtained Windows Phone screen, you go to Settings and try to run phone update to upgrade Windows Phone 8.1
  12. Follow the steps
  13. If success, your Windows Phone will restart again
  14. Now you can obtain Windows Phone 8.1 on your device. See picture 4

Picure 1

WindowsPhone 8.1 1

Picure 2

windowsphone 8.1 2

Picure 3

windowsphone 8.1 3

Picure 4

windowsphone 8.1 4

Done !! Windows Phone 8.1

Hi cortana

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