originally launched with ColorOS 3.0 based on Android 6.0 Marshmallow, several methods exist to upgrade your firmware. Official Methods for Updating

Some users have successfully triggered the Nougat update by using a VPN like Opera VPN to connect to regions like Canada or the Netherlands, where updates may be rolled out earlier.

to Android 7.1 Nougat can significantly improve your device's performance, adding features like multi-window multitasking and improved notification management. While the

You can use the official OPPO System Upgrade Tool on a PC to check for and install the latest firmware directly via a USB connection. Manual Firmware Download (Nougat 7.1.1)