The Qualcomm Snapdragon 665 chipset and 4GB/8GB RAM configurations are considered insufficient for the performance demands of newer Android versions.
OPPO support has stated that because the model was launched in 2019, its hardware performance is insufficient to support the requirements of ColorOS 12 and Android 12. oppo a9 2020 coloros 12 update
As of 2026, the software landscape for this device is settled. This article provides the definitive update on the situation, the official stance from OPPO, and your options for keeping your device running smoothly. The Official Position: Does the OPPO A9 2020 Go to product viewer dialog for this item. Get ColorOS 12? The Qualcomm Snapdragon 665 chipset and 4GB/8GB RAM
PC Connect software for seamless cross-screen file management and notifications. Unofficial Methods to Achieve Android 12 the official stance from OPPO