1-why can't I make separate ringtones for each SIM card? Is there any way to fix this? 2 - when notifications for applications appear on its icon only a red circle, in fact there should be a number with the number of notifications. 3 - all downloaded apps don't automatically start with phone startup, is this how it should be? Do I have to run everything with my hands to make it work?

1. You can set different ringtones according to different contacts.
2.  Android 9.0 system defaults with a red circle
3. Is available for you to send me a video about that? All downloaded apps don't automatically start with phone startup.
4. Our email: support02@blackview.hk

One SIM card personal, the other work, this is the main division and it is important. On all my previous phones ringtones on different SIM can be put separately.

The video was sent but: (reason: 552 5.3.4 Message size exceeds fixed limit.). I send link to. There were 5 apps to launch, telegram, amazfit master, n&f, dualsim ringtone and facebook lite. For the first time in my life I see that facebook lite does not start when start the phone. This function can`t set off on it. All apps latest versions from GP