Power down the smartphone completely. Ensure the battery has at least 30% charge to prevent mid-process power drops.
Versions typically require a universal password (often "user") to enter the main dashboard.
MTK GSM Sulteng V1.3.6 -lite-: Ultimate MediaTek Repair Guide
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Click the desired function button (e.g., or Format Data ). Power off your smartphone completely.
Hold the buttons simultaneously and connect the phone to the PC via a USB cable.