Originally Posted by
Tokumeii I have successfully installed Windows 10 Insider Mobile on my BLU Win HD W510u using the Windows Insider App but now that I've seen what's going to come in the future, I'm ready to go back to a stable build of Windows 8.1. Problem (as you might have guessed) is that I can't go back due to the fact that the Windows Phone Recovery Tool only supports Nokia Lumia and HTC devices. I've contacted BLU for help and so far no reply. Can anyone help me?
Sorry for any errors, I'm a Newbie.
Yes, since the moment you jointed the Windows Insider Program you lost your phone's warranty, sorry about that but Microsoft did leave it pretty clear. So now that we know BLU won't help you, let's go through your options: You got none.
Since the Recovery Tool is the ONLY tool for that and Gabe Aul said "not supported phones will see the update but should not download" and you did, there's nothing to do now. Microsoft is working on a fix for those phones which were updated, so sit tight and wait.