Samsung Galaxy A50 hang after latest update

[Samsung_olfSmbC]

i just received phone update today and i installed it. after restart, it hang on the logo screen.

I can't power off or go into the recovery mood. please help.

[khtannnnnnnnnn]

1. Plug in usb cable to PC everytime u go recovery mode, its an extra step for safety.
2. Yeah samsung makes old phone slow with updates😢