Microsoft today released the first technical preview build for Windows Phone devices. If you have a compatible Windows Phone device, follow the instructions below to download the latest build to your device.
- Join the Windows Insider Program here.
- Download the Windows Insider app here. The Windows Insider application provides registered Insiders the ability to receive pre-release OS updates on their phone.
- Have free space of above 8GB on your phone.
- Go to Windows Insider app, enroll in Fast ring.
- Check for updates on your phone.
- Before hitting update, read this post,
List of supported devices in the first release:
- Lumia 630
- Lumia 635
- Lumia 636
- Lumia 638
- Lumia 730
- Lumia 830
In case you ran into issues, download this tool from Microsoft to recover your phone.