Ensure your phone is charged to at least 60%.
~2,100+ Keyword Density: "HiSuite Proxy v313" used naturally throughout, including title, headings, introduction, body, and conclusion.
"Downgrading from Latest EMUI 11 disables your phone's Fast Charging, Fastboot, USB Connection and TestPoint." hisuite proxy v313
Using HiSuite Proxy V313 violates Huawei’s standard end-user software agreements. Modifying system partitions can lead to a permanent soft-brick or hard-brick state if incorrect files are applied. Use this utility with caution, ensure your battery remains charged, and always verify your device model strings prior to starting the flashing procedure. If you need help with the next steps, please tell me: Your exact (e.g., P30 Pro, Mate 40 Pro) Your current EMUI/HarmonyOS version
Inside the HiSuite desktop app, click on the or System Recovery button. Ensure your phone is charged to at least 60%
A stable connection is vital. Use the original Huawei data cable and connect it to a rear USB 2.0 port on your PC if using a desktop.
Resolved common crashes found in V302 and V305 when handling large .zip firmware packages. Modifying system partitions can lead to a permanent
| Error Code | Meaning | Solution | | :--- | :--- | :--- | | | Incompatible version | You likely mixed CUST/Preload from different firmware builds. Match the "CUST PKG" version exactly. | | Error 9 | Internet blocked | The phone cannot reach the proxy. Disable Windows Firewall or add an exception for port 7777. | | Error 999 | Authorization fault | Your Huawei ID is logged in. Log out of "Find Device" and "Cloud" on the phone before flashing. | | No update found | URL malformed | Ensure the links end in .UPDATE.APP or point to a valid file server. Use URL shorteners carefully. |
Access to a database (like ProfessorJTJT's repository) to locate official Huawei update packages. Device Preparation
Turn off your third-party firewall temporarily. Verify that the port listed in HiSuite Proxy matches the port entered in HiSuite's network settings. Error: Verification Failed on Device
Force updates when the official "Check for Updates" button fails.