The first bug. I went to settings -> Sounds & notifications -> settings icon next to the main (ring and vibration) -> Ringtone. And chose a ringtone of "Themos". Now it sounds perfect. But when the battery is low or just to shut down the phone, the ringtone returns to the default. If you go to the settings of the selected ringtone "Themos". But if there's somebody calling me I hear the default ringtone. Every time have to re-select the "Themos". Very annoying, uncomfortable.
A second bug. To distribute Wi-fi I have to double-move the slider to enable. The first time doesn't work. Item enable this setting: Settings -> more -> tethering -> access Point Wi-Fi -> move slider to enable. The first time hangs. It is necessary to press once ago. Then go to Point Wi-Fi hotspot and move the slider a second time.

Not running the standard Email app. Tried to connect in all ways mail.ru according to the instructions https://help.mail.ru/mail-help/mailer/mail_android

biker95 wrote:

Doesn't work feedback. Error: "network connection Failed". The path to the menu item: "Settings. About the phone. The software upgrade. In the menu -> feedback ."

The developers have released an update via the play store with a fix for this. But if you delete the update again it doesn't.

Very bad phone support A8 Max. Many bugs that I described on the forum viewtopic.php?f=155&t=114802. The most sad that the phone messed up my micrpSD firms Transend class 10 (premium) 32 GB. If I knew that I would have to face it, would never have bought it. The impression from the company blackview has remained negative.