2. Logout to login manager (Eg. SDDM in KDE)
3. Press Ctrl + alt + F2 and switch to TTY2. You can also try Ctrl + alt + F3 for TTY3 if required.
4. Login on TTY2
5. Run nmtui (Ncurses based network manager gui to connect to Lan / Wifi.).
sudo pacman-mirrors -f 5(Update mirrorlist with 5 fastest up to date mirrors).
sudo pacman -Syyuw(First only download all packages to manage breaking change during package installation).
sudo pacman -Syu.
9. Done with update, Run
credits rahulprabhakar in http://bit.ly/2qxY6cO.
vlw fwi, Holmes