i did the ROM upgrade as shown BV7000_PRO_Blackview_20170524_20171025-1900 to get the compass back. All went well i started to restore my phone but found i didnt have a working finger print sensor, its not available in hardware.
So i used the flashtool to go back to prev rom & even the MM Rom & i get the error message shown in the png. everytime for any version i try!!
How can i restore my phone to get a working finger print sensor !!! Is your ROM file corrupted, & why are we getting them from mega.nz as RAR format!!! instaed of zip.
I need to know how to restore the phone to a good fully working copy of Nougat with finger print sensor & compass please