To understand the Open ADB Huawei 2018 Tool, you must understand the timeline.
The "2018" in the tool’s name refers to the golden era of Huawei's vulnerability window. During this period, security researchers discovered that while the bootloader was locked, ADB running on specific firmware versions (EMUI 8.x and early 9.0) had elevated privileges due to a test-engineering backdoor left in the kernel.
The Open ADB Huawei 2018 Tool was designed to exploit that backdoor.
Assuming you have a compatible Huawei device running EMUI 8.x, here is the standard workflow.
Because this tool is famous, malicious actors have injected ransomware and keyloggers into fake versions. Do not search for "Open ADB Huawei 2018 Tool Free Download EXE" on random YouTube videos.
Disclaimer: This guide is for educational purposes. Modifying your device voids warranties and carries a risk of permanent bricking.