Ok guys I've just fixed my problem I've had the same as you all. Problem is that is a most racist software I've ever seen. It didn't work on my PC or laptop on win 10. But i did my update in 5 min on my MAC but to solve black screen issue you need to update drivers (just instal last version and i know that there's nothing about amplifi 75/150 in there just get the last one) so i think is just more ISO friendly software and now my 150 is up and running