Hi everyone, below is the Flash ROM on A9_Pro_Blackview_20170427.
https://mega.nz/#!0XAyWADK!Q9xp18V77Y0X ... s-vl37SLMc
You can follow the below flash manual.
viewtopic.php?f=2&t=115827&p=294022&hilit=MTK+smartphone+Multiple+downloading+tool+operating+instructions#p294022