I tryed to flash using the tutorial, but not succesfull, the phone won't turn on, the proximity red sensor si blinking constantlly. I think is bricked. What can I do to bring it back to life?
video with the phone blinking proximity sensor:
https://youtu.be/ojkbun3KkbQEDIT:
It turned on after waiting 30 minutes.
this is the screen shot of the erorr I get when following your tutorial:

the error occured at this step from the tutorial:
7) Press “Start all”. Press Phones volume-up-key while connecting it again.
Do you know what I can do to fix this error and flash the previous version of 20170822 of the bv8000, because I have 20170829 and is a bugged update, I can't have a decent phone call because of this, details on this thread:
viewtopic.php?f=191&t=295844&start=10