OPPO A16s

Find "Personal hotspot settings"

Slide two fingers downwards starting from the top of the screen.

Find "Personal hotspot settings"

Press the settings icon.

Find "Personal hotspot settings"

Press Connection & sharing.

Find "Personal hotspot settings"

Press Personal hotspot.

Find "Personal hotspot settings"

Press Personal hotspot settings.

Select Wi-Fi hotspot settings

Press the field below "Name" and key in the required name.

Select Wi-Fi hotspot settings

Press Security.

Select Wi-Fi hotspot settings

Press WPA3 PSK to password protect your Wi-Fi hotspot.

Select Wi-Fi hotspot settings

Press the field below "Password" and key in the required password.

Select Wi-Fi hotspot settings

Press the save icon.

Turn on Wi-Fi hotspot

Press the indicator next to "Personal hotspot" to turn on the function.

Return to the home screen

Press the Home key to return to the home screen.

Establish connection to Wi-Fi hotspot from another device

Turn on Wi-Fi on the other device.
Find the list of available Wi-Fi networks and select your own Wi-Fi hotspot.
Key in the password for your Wi-Fi hotspot and establish the connection.
When the connection is established, you can access the internet from the other device.