Problem with MI MIX 3 (rom 10.2 stable)


Jan 30, 2019
hi guys my name is ivan and 2 week ago i buy my first xiaomi, Xiaomi MI MIX 3.
I have Unlock the bootloader, flash the rom 10.2 stable for mi mix 3 Android 9, and install magisk for stereo mode, youtube vanced black.
I have a little bug, sometimes my phone goes off without any reason.
The smartphone turned off 2 times in 3 days after closing a voice call and one time on instagram
What is the problem?
Thx in advance for your answers and sorry for my elementar english