This usually means the flash file is corrupted, or the USB connection broke during write. Repeat the process with a stable cable.

A tool designed to write the file to the chipset, such as SPD Upgrade Tool or a modified Miracle Box.

: Ensure the flash file is for the exact model. Flashing the wrong version can permanently brick the device.

for a specific brand (e.g., Itel, Micromax, or QMobile) or help identifying the for your device?