I also try it with Windows 10 64bit but i got this:

Did you enable USB debugging?

Yes i did. I enable usbdebugging then shut it down and plug it in to the pc immidently the programm say (when i start) 100% download an then i have to wait 2-5 minutes then the message came.

But i always get a message that the device is not ready in the device manager...

I first click on download, and then connect the BV7000, the process starts and ends regularly.
I recommend changing USB port, possibly also changing PCs.
Using Flash Tools 5.1720.00, I hope to help you.

OK i try it now. I will let you know

Hi, I upgraded today 2 BV7000 Pro devices to Nougat. Using windows 7 64bit PC, installation was straight forward. The only issue I had is that it won't identify BV7000 Pro with firmware from 24 March. Only after I upgraded to April 11th version, SP Flash tool identified it in Download mode.
Nougat feels much better and faster. Thanks

Hi. Please reload firmware for BV7000_PRO_Blackview_20170523. Your link does not work on your forum anymore. Thank you

chev7 wrote:

Hi. Please reload firmware for BV7000_PRO_Blackview_20170523. Your link does not work on your forum anymore. Thank you

I will request a new upload.

How difference is between this ROM 20170523 and ROM 20170411 ? What was fixed ?

Thank you.

Please use the latest Version for your device: viewtopic.php?f=176&t=191529&p=376561#p376561