: Allows users to unlock or re-lock the bootloader, which is the first step required for any deep system modification.
Using the SRK Tool involves modifying system partitions. This voids your warranty
For new Huawei models (Nova 12, P70, Mate 60), you will need paid professional boxes (Octoplus, Z3X) costing hundreds of dollars. SRK Tool is effectively a for 2016-2020 devices.