How can I downgrade my Windows version from 10 to 8.1 in Lumia 730?

[Windows Central Question]

How can i downgrade my windows version from 10 to 8.1 in Lumia 730

I installed windows 10 in my phone but i found some applications are not working properly so ,, i want to downgrade this version to 8.1 ... please help me what to do i cant found proper solution for it.

 

[Dusan Randj]

Re: How can i downgrade my windows version from 10 to 8.1 in Lumia 730

Windows Devices Recovery Tool
Aka
Windows Phone Recovery Tool (older name)

You should have read well how to upgrade and downgrade before taking thaf step.

 

[Teo Bartulovic]

Re: How can i downgrade my windows version from 10 to 8.1 in Lumia 730

Just install Windows device recovery tool, connect phone and rollback to 8.1, if you really want to do that

 

[TT_GENERAL]

Re: How can i downgrade my windows version from 10 to 8.1 in Lumia 730

But the Windows device recovery tool won't install on my PC. Keeps giving this error (0x80091007 - THE HASH VALUE IS NOT CORRECT). What do I do please?

 

[Harrie-S]

Re: How can i downgrade my windows version from 10 to 8.1 in Lumia 730

Have a look at this youtube video.
https://m.youtube.com/watch?v=2hmTOJP3H74

Good luck