You cannot flash random files. You need the Service ROM (Update.app) for your exact model number (e.g., LYA-L29). Extract the UPDATE.APP using a tool like Huawei Update Extractor to get the raw system.img , boot.img , and recovery.img .
Open the Huawei Flash Tool as Administrator. Click "Refresh Device." You should see your phone's serial number. huawei flash tool
Enter the —the unofficial lifeline for dead, soft-bricked, or bootlooping Huawei and Honor phones. You cannot flash random files
Hold Volume Up + Power to enter stock recovery. Wipe data/factory reset. Reboot. The Better Alternative: HCU & DC-Unlocker If the free Huawei Flash Tool feels too janky for you, professionals use HCU Client or DC-Unlocker . These are paid (around $15-20 for credits), but they work over a standard internet connection and rarely brick devices. They also support newer Kirin 990 and 9000 series chips. Final Verdict: Should you use it? Yes, if: You have a bricked Huawei from 2018–2020 (P20, P30, Mate 20, Honor View 20), you have a Windows PC, and you are comfortable with command-line logic. Open the Huawei Flash Tool as Administrator