I tried method #6 and that worked! Apparently the 'anti-theft PIN' is the same as the 'privacy protection password' I needed.
(Now I wish I hadn't factory reset my phone)

Thanks a lot for your help!

Here are photo's of the total wipe: SIM tray is empty the small side menu, choosing recovery mode recovery mode, choosing total wipe confirming total wipe after the wipe, turning the phone off phone is rebooting still asking for the privacy password I tried method 3 from the website you linked to, b...

Thanks for the quick preply! Unfortunately, it didn't work. I removed my SIM (I didn't have a micro-SD in the second SIM-slot) and then I turned the power off. Following the tutorial, I started by holding down the volume up button and then the power button. I tried holding the buttons for over a min...

Good morning,   I’ve had a problem with my Blackview 9000 since a few days ago. I’ve switched to a different telephone company, so I turned off the BV9000 and placed the new SIM. When I turned it back on, it suddenly asked me for a privacy code. I can’t remember ever setting a privacy code and I’d ...