Question How to unlock Bootloader?

[Auxiliatrix]

Hello anywhere!
How unlock Bootloader on buid V3.15

I try adb command " fastboot flashing unlock " but nothing happens

command promt writes me: < waiting for any device > ...

 

[Auxiliatrix]

Dudes!!! I figured it out

It turns out that I did not have ADB drivers installed. After installation I was able to unlock

be careful!