I have a D3 that some time ago I installed the latest version of blissz firmware and it went great, recently I had to reinstall the original bitmain firmware for maintenance issues and when I'm going to reinstall the Blissz firmware I get a message that says "Can not find Signature !!!", does anyone know how to fix it?

It is urgent for me to have Blissz's firmware since bitmain has a lot of problems, thanks.