: Power off the device completely. To enter the required mode, press and hold the Volume Down button (or sometimes Volume Up) while connecting the USB cable to the PC.
Nokia SPD Unlock Tool v1.0 is a desktop utility designed to read, remove, or reset network/operator locks and security credentials on Nokia phones that use Spreadtrum (SPD/Unisoc) chipsets or firmware packages. nokia spd unlock tool v1 0 download
: Wipes user data and resets the device to its original factory state, often used to clear forgotten pattern or pin locks. Firmware Flashing : Power off the device completely