7.0" touch screen
The first thing is to start with a fresh installation of Rasbian. To be sure you are up-to-date do this:
sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade
sudo apt-get install rasberrypi-ui-mods
sudo apt-get install rasberrypi-net-mods
Then connect it like this:
If you need to rotate the display, edit /boot/config.txt. Add this line:
display_rotate=2
This flips the screen upside-down.