Flashing will erase all user data. Ensure your battery is at least 50% charged before starting. Tutorial Flash Oppo A3S (CPH1803) via QFIL Work
You're looking for the QFIL firmware flash file for the Oppo A3s (CPH1803). Here are some details: oppo a3s qfil firmware cph1803 qfil flash file link
To flash your device, you need three main components: the specific flash file, the Qualcomm USB drivers, and the QFIL tool itself. Oppo A3s CPH1803 Latest Flash File (Stock ROM) Oppo A3s CPH1803 Stock ROM Firmware Qualcomm Flash Image Loader (QFIL Tool): Download QFIL Tool (Latest Version) Qualcomm USB Drivers: Download Qualcomm USB Driver Pre-Flashing Requirements Flashing will erase all user data
Power off your device. Hold Volume Up + Volume Down and connect it to your PC via USB. The tool should show "Qualcomm HS-USB QDLoader 9008". Here are some details: To flash your device,