I am trying to update NVIDIA cards because in drive manager it is 435 version. I have tried to reboot or remove previous nvidia (sudo apt-get purge nvidia*). If I turn off the server(ctrl+alt+f1) the monitor becomes black. What should I do to update nvidia?

Apr 2020 ⋅ ⋅ ⋅ #ctrl #alt #f #ctrl+alt+f1 #f1 #1