Always backup your current firmware (if phone is alive enough):
Power off the phone. Hold the boot key (usually the center or "OK" button) and connect it to the PC via a micro-USB cable. Execution: nokia ta1174 flash file mtk top
Leave a comment below with your Nokia TA1174 model suffix (e.g., TA1174/DS) and the MTK Top version you used to help other users. Always backup your current firmware (if phone is