The Oppo K9 Pro is a 2021 Android 11, ColorOS 11.3 smartphone powered by the Mediatek Dimensity 1200 (6 nm) with 12GB | 8GB and 128GB | 256GB internal storage. It features a 6.4", AMOLED, 120Hz, HDR10, 430 nits (typ), 800 nits (peak), 1080.0x2400.0 display and is available in Black, Aurora.

The K9 Pro is equipped with a Li-Po 4500 mAh, a 64 MP, 4K@30fps, 1080p@30/60/120fps; gyro-EIS main camera, a 16 MP, 1080p@30fps, gyro-EIS front camera. The device uses a Nano-SIM + Nano-SIM configuration. It weighs 180 g.

Clearing the cache partition on your Oppo K9 Pro removes temporary system files that accumulate over time and can cause slowdowns, crashes or boot issues. Unlike a factory reset this process does not delete any personal data, photos, apps or settings, making it a safe first step when troubleshooting performance problems.

Clears temporary system files without deleting personal data.