Here you can download drivers for your Oppo Phone of USB, CDC and VCOM Preloader. This post contains all oppo mobile drivers. Just find your phone model and click on download link below. USB drivers for Oppo Mobile usd for transferring data to pc and from pc to phone. VCOM Preloader (USB RS-232 Emulation) drivers used for performing manual firmware/software updates through PC (MediaTek USB VCOM (Android)) and ADB driver used for performing adb task on your android based phones within command prompt.
USB VCOM Preloader CDC ADB Drivers for All Oppo Mobile