How can I fix an Error when downgrading from Windows 10 mobile?

[Windows Central Question]

Error when downgrading from Windows 10 mobile

I have been using the Windows 10 mobile tech preview on my Lumia 930 for the last month, but it is way too buggy for my daily use, so I wanted to downgrade to 8.1.1 again. I downloaded the rollback-program, and installed it.

Problem 1: First, the computer did not recognize my phone. Only after a hard reset was I able to find it on my pc. So that one is solved.

Problem 2: I ran the program, and it downloaded the 8.1.1. OS package, but after it was finished downloading, it just said " there is no program available for your phone" or something like that. When I tried to run it again, it didn't even want to run the program with the phone plugged in...

Has anyone else encountered this issue?

 

[Harrie-S]

Re: Error when downgrading from Windows 10 mobile

These things happen more.

I presume you use the WPRT.
How can I recover/reset/restore my phone software? - Microsoft - USA

Try to use another usb cable or another usb port or use the "my phone is not detected" info in above link.

If you need more assistance please register and reply on this post.

Good luck