Steps
Open Settings → Network & internet → Wi-Fi.
Make sure Wi-Fi is turned on.
Tap your network’s name.
Type the password and connect.
You can type with the physical keypad or the on-screen keyboard.
The keyboard doesn’t come up for the password
Open the Kosher Qin Phone app.
Tap ☰ (three lines, top left) → Tools → Input Switcher. This switches between the on-screen keyboard and the physical buttons.
Go back and tap the password box again.
Why Wi-Fi is useful
Installing and updating apps works best on Wi-Fi. In the Kosher Qin Phone app’s Updates tab, updating one app at a time on Wi-Fi is the most reliable.
In places with weak cell signal, you can use Wi-Fi calling. See How do I turn on Wi-Fi calling?
Good to know
Wi-Fi networks that need a sign-in web page (like many hotels and airports) usually can’t be used. See Can I use hotel, airport or other Wi-Fi with a sign-in page?
Trouble connecting? See My phone won’t connect to Wi-Fi.