USB Tethering in OPPO phone | USB Tethering in Android phones | USB Tethering in OPPO A15S - YouTube
How can I add VPN and USB tethering to the notification panel? They were available in my previous phone using Lineage, now I'm using Oppo's Color OS 11 and they're not there... :
Use phone as modem - OPPO A37 - Android 5.1 - Device Guides