Upgrade BLU win hd lte to windows 10

[Windows Central Question]

How to update Blu win hd lte to windows 10 OS, before doing that how to take back up. Is it possible to downgrade or reset OS incase of any issue.

 

[shmsnh]

You will need to install an app titled Upgrade Advisor from the Store. This is the official app from Microsoft that provisions eligible phones to receive the Windows 10 Mobile upgrade. You can backup device settings to the cloud and backup any local files using a computer. To downgrade in the future, simple use the Windows Device Recovery Tool.