I have a Blackview BV9000 Pro F-HD that suddenly asked me for "Privacy Protection Password".
I traveled 2 hours by plane, and around 10 minutes after turning the phone on after collecting luggage, and checking my WhatsApp, the screen went black, and it asked for the code.
I have never set up a code or pattern, so I don't know any way to get into the phone.
Google says the phone is not online, despite that I type the correct SIM-Pin.
Is wiping of all partitions followed by forced firmware flash the only option here?
Phone has the Android 8.0 update and is running Malwarebytes Pro. No Facebook/twitter/instagrap or that stuff, only gmail and Whatsapp.
TL;DR: Phone locked itself - didn't set a code - now device offline since 8 days after travelling by plane.