That being said, here's a general guide on how to use a flash tool:

Flashing a smartphone requires precise, stable commands. Cracked tools are often poorly modified, unstable, and prone to crashing mid-process. If a flash tool crashes while writing firmware to your Huawei device, it can permanently corrupt the motherboard's memory (EMMC/UFS), resulting in a "hard brick" that cannot be fixed without expensive hardware repair. Safe and Legitimate Alternatives for Huawei Flashing

MRT HW Flash Tool v5.3 (often associated with MRT Key or MRT Dongle) is a specialized mobile repair software primarily used for servicing Huawei and OPPO devices. While "cracked" versions are frequently searched to bypass the requirement for a physical USB security dongle, these versions carry significant security and functionality risks. Software Overview

MRT HW Flash Tool is a software application designed to flash, unlock, and repair mobile devices, particularly smartphones and feature phones. Developed by MRT Team, a renowned group of mobile device engineers, this tool has gained a significant following among mobile repair technicians and enthusiasts.

If your bootloader is already unlocked, you do not need third-party automated tools.