You must enable HDB in your phone's settings to allow the connection.
HiSuite allows users to "Switch to Other Version," which can roll back the OS to an older stable version if Huawei still supports that path for your device. Download Huawei downgrader rar
This process will erase all data on your device, so a full backup is essential before starting. Community Alternative: HiSuite Proxy You must enable HDB in your phone's settings
The most secure way to downgrade is through the official desktop application. Community Alternative: HiSuite Proxy The most secure way
If the official HiSuite does not offer the specific older version you need, the community often uses , an open-source tool hosted on GitHub.
Searching for a specific ".rar" file for a "Huawei Downgrader" often leads to unofficial or potentially unsafe third-party sites. For a safe and reliable firmware downgrade, it is recommended to use official tools or established open-source community projects. Official Method: Huawei HiSuite
Helpful Information - Downgrading From EMUI 11 #127 - GitHub