I agree. The problems just add up on this thing and this is the last straw. I won't be making any purchases from Blackview anymore and will discourage anyone to do so. Maybe some users with the new BV7000 Pro will be able to back-up their firmware and enable us to upgrade despite your lack of professionalism. Will need root of course but with a Mediatek chipset, there is hopt. Seriously, having already a build of 7.0 the only thing you would need to do is give us the file... I can't understand why you wouldn't do something so easy and create anger..
i directly contact Blackview on this topic and get a different answer. they said they working on and will be realized soon. The information will be posted on their facebook page.