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 .

Disclaimer: Flashing custom software voids warranties and carries inherent risk. The author is not responsible for any data loss or hardware damage. Always ensure you have the correct firmware for your specific device model.

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.

Select the partitions you extracted. Check "System," "Boot," and "Recovery." Click "Flash." Wait for the green "OKAY" message.