This is the #1 reason. If a new EMUI update slowed down your phone or ruined the battery life, HiSuite Proxy lets you go back to a version that worked perfectly.
Huawei HiSuite Proxy V313 Repack: The Ultimate Guide to Downgrading and Custom Firmwares hisuite proxy v313 repack
If you own a Huawei or Honor device, you likely know that the official HiSuite software can be quite restrictive. Whether you are trying to roll back to an older version of EMUI to regain lost features or want to install a specific regional firmware, the official tool often blocks these "unauthorized" changes. This is the #1 reason
Many users use V313 to downgrade to specific older versions (like EMUI 10.0) that are compatible with GMS installation methods for newer Huawei phones. How to Use HiSuite Proxy V313 Whether you are trying to roll back to