OPPO R15 Pro

Find "Personal Hotspot Settings"

Press Settings.

Find "Personal Hotspot Settings"

Press Other Wireless Connections.

Find "Personal Hotspot Settings"

Press Personal Hotspot.

Find "Personal Hotspot Settings"

Press Personal Hotspot Settings.

Select Wi-Fi hotspot settings

Press the field next to "Name" and key in the required name for the Wi-Fi hotspot.

Select Wi-Fi hotspot settings

Press the drop down list next to "Security".

Select Wi-Fi hotspot settings

Press WPA2 PSK to password protect your Wi-Fi hotspot.

Select Wi-Fi hotspot settings

Press the field next to "Passcode" and key in the required password.

Select Wi-Fi hotspot settings

Press Save.

Turn on Wi-Fi hotspot

Press the indicator next to "Enable Your 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.