Updating to Android 7.1.1 Nougat (ColorOS 3.1) transforms the user experience through several refinements: Split-Screen Multitasking
The OPPO F3 may no longer receive security patches, but the jump to Android 7.0 gives it a second wind. Follow this guide carefully, and you’ll have a stable, feature-rich Nougat experience. oppo f3 android 7 update download
If no update appears, your region may have stopped rollout. Try VPN to India or Indonesia (common release regions). Updating to Android 7