I have multiple Hp Folio 9470m. Once I had a good and stable running one, I owned several more and all I did was that I copied the SSD via Carbon Copy Cloner, installed Clover on the new SSD and copied the EFI Folder as well. This worked all the time for 4 HPs. But now I have another HP Folio 9470m, same specs as another one but the HP is only booting, Apple Logo shows up and then the Screen stays black. One can recognise that the light of the screen is on, but its black. If I hit some Keys I get the "Mägg" Error Sound out of the speaker, like you get it, when you type in the wrong password. I also tried to use my working SSD in the newer HP, in case the Clone was not perfect, but also my working SSD did not work on the newer owned HP. Its the same processor etc ... Same specs. I also updated BIOS and checked BIOS setting a lot of. Any idea?! I booted also in -v - the screen shot is what I get bevor it turns and stays black. Thank you.