Using SP Flash tool, we will reset the pattern of Oppo F9 CPH1881. F9_CPH1881_11_A.11_181115 MCT MTK Auth Bypass Steps to Unlock Oppo F9 CPH1881 using SP Flash Tool: Open Driver folder and install libusb driver. Open MCT folder & run MCT tool. Click on Bypass then switch off phone. Hold both Volume keys & connect...