"Downgrading from Latest EMUI 11 disables your phone's Fast Charging, Fastboot, USB Connection and TestPoint."
Install a version compatible with your device (versions 10.x or 11.x are often preferred for proxying).
HiSuite Proxy is an open-source utility that acts as a middleman between your computer and Huawei’s update servers. By "tricking" the official HiSuite into thinking a specific firmware version is the latest official update, it allows users to:
Open the official HiSuite on your PC and connect your phone. Click "Update." If configured correctly, HiSuite will show the version you entered in the proxy as a "new update." ⚠️ Critical Safety Warning
The firmware packages selected do not match your exact device model string or regional CUST code.
A stable connection is vital. Use the original Huawei USB cable connected directly to your computer's motherboard port (avoid USB hubs).
Use an original USB data cable connected directly to a motherboard USB port. Avoid USB hubs. Step-by-Step Guide: Using HiSuite Proxy V313
Install firmware meant for different regional variants of your device.