Unity does not recognize Android device... at all

Hello!
I'm learning unity, and everything has been fine so far, just till I decided to build and run my scene for an android device.
Unity states that it cannot find any android device available.
If I build the scene without running and then manually install and launch it on my Android phone, it doesn't work and crashes.

I would be grateful for any kind of support, I have tried everything possible.

System: Windows 8.1

VR device for development: Google Cardboard

Phone: Xiaomi Redmi Note 7, Android 9

Android Studio: 3.6.3 with modules:

• android SDK build-tools

• NDK (side-by-side)
  
  
• Android Emulator
  
  
• Android SDK Platform-tools
  
  
• Google USB Driver
  
  
• Android SDK (obsolete) SDK Platforms on for Android 9 and 10.
  

Unity: 2019.3.12f1
Android SDK+NDK+OpenJDK installed.

USB debugging on device is on. Revoking/turning debugging on-off/reloading doesn't do anything.

Device is recognized on PC.

Thank you in advance!