: You can visit an authorized OPPO Service Center where technicians may be able to manually flash the official Nougat-based ColorOS version for you. Manual Firmware Download (Advanced)
Smoother multitasking and faster app launches.
Remember: A working Nougat Oppo F3 is still a capable secondary phone—great for selfies, great for battery life, and now, great for productivity.
This is the safest way to update. If you don't see the update automatically, some users have successfully triggered it by using a VPN. on your OPPO F3. Scroll down and select System Updates