Using SP Flash tool, we will reset the pattern of Oppo R15 CPH1835. CPH1835_11_A.26_181230 MCT MTK Auth Bypass Steps to Unlock Oppo R15 CPH1835 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...