So I want to install opencv in my raspberry pi 3b. When I sudo update, upgrade and finally reboot my rasp pi, I noticed that my LCD touch is now disabled. Good thing I have a back-up of the OS to make the LCD touch enabled again. How will I avoid this?
Before installing any new update in your Raspberry, check first provided drivers for your devices. Otherwise keep a copy of your drivers and reinstall them after update and upgrade.
LCD not working after sudo update and upgrade