Some tech enthusiasts may consider installing unofficial custom ROMs to get Android 12 or ColorOS 12 features. However, this is for the average user. Unofficial ROMs can:
Disclaimer: This information is based on official OPPO community responses and support channels as of June 2026. If you are considering upgrading, I can:
This is where the experience varies depending on your specific unit. oppo a9 2020 coloros 12 update
A: Realme has a different software team and sometimes offers longer support for specific models (e.g., Realme 6 Pro). OPPO’s A-series strategy is shorter.
with 5G and modern software.
: Uninstall unused apps and use the "Force Stop" feature for apps you rarely use to free up RAM.
The quad-camera setup is versatile but standard for its age. It performs well in daylight but can struggle with saturation and low-light noise. If you are considering upgrading, I can: This
Unless you are an advanced user with recovery tools and a spare phone, do not attempt custom ROMs on the A9 2020.