Huawei Firmware Guide: Finding and Flashing Stock ROMs

To reflash or unbrick a Huawei device, you must identify the exact model number and chipset to find the compatible stock ROM. Depending on the hardware, you will typically use tools like SP Flash Tool for MediaTek devices or QFIL for Qualcomm-based models to restore the system.

Huawei Device Chipsets and Android Versions

Huawei devices utilize a variety of hardware platforms. Based on an analysis of the 600 most recently added files among the 2,014 Huawei files available on File Firmware, MediaTek chipsets are frequently encountered. Common MediaTek chipsets include the MT6582, MT6572, MT6739, MT6580, MT6735, MT6761, MT6737T, MT6737M, MT6735M, and MT6750.

The Android versions associated with these devices vary widely to cover different generations of hardware. The most common versions seen in recent uploads include Android 9, Android 8.0, and Android 8.1. Other versions present in the library include Android 7.0, Android 6.0, Android 5.1, Android 5.0, and Android 4.4.

How to Choose the Correct Huawei Stock ROM

Selecting the wrong firmware can lead to a hard brick or the loss of critical device calibration data. To ensure you have the correct file, follow these verification steps:

1. Verify the Model Number: Check the device settings or the sticker under the battery (if removable) for the exact model code (e.g., STK-L22 vs. STK-LX1). Even slight variations in the model number often indicate different regional specifications or hardware revisions.
2. Identify the Chipset: Determine if the device uses a MediaTek or Qualcomm processor, as this dictates which flashing tool is required.
3. Check the Android Version: Ensure the ROM version is compatible with your device's original software or the version you intend to upgrade/downgrade to.
4. Match the Package Name: Look for specific identifiers in the filename, such as "Dload" for Huawei's recovery method or "scatter" files for MediaTek flashing.

You can browse the full library of available files at /category/huawei.

Flashing MediaTek Huawei Devices with SP Flash Tool

For Huawei devices powered by MediaTek chipsets, the SP Flash Tool is the primary utility used for writing firmware to the eMMC.

Prerequisites

Before starting, install the MediaTek VCOM / USB drivers on your computer to ensure the tool can communicate with the device in preloader mode.

Flashing Steps

1. Launch the SP Flash Tool.
2. In the "Download" tab, locate the "Scatter-loading File" field and click choose.
3. Load the scatter file from your firmware folder (typically named MTxxxx_Android_scatter.txt).
4. Select the "Download Only" mode from the dropdown menu.
5. Click the "Download" button to prepare the tool.
6. Power the phone off completely.
7. Connect the device to the computer via USB. If the device is not detected, try holding the Volume Up or Volume Down button while connecting.
8. The tool will begin flashing the partitions. Wait for the process to complete.

For more detailed instructions on this process, refer to the /blog/how-to-use-sp-flash-tool-mediatek-firmware-flashing-guide.

Flashing Qualcomm Huawei Devices with QFIL

Devices using Qualcomm chipsets require the Qualcomm Flash Image Loader (QFIL), which is part of the Qualcomm QPST suite.

1. Install the necessary Qualcomm USB drivers.
2. Launch QFIL and configure the correct storage type and programmer file (.mbn) associated with your specific Huawei model.
3. Load the flash images (XML files) required for the ROM.
4. Put the device into EDL (Emergency Download) mode.
5. Execute the flash process.

If you encounter issues during this process, such as the common Sahara fail error, you can find a solution in the /blog/how-to-fix-qfil-sahara-fail-error guide. For a full walkthrough, see /blog/how-to-use-qfil-qualcomm-firmware-flashing-guide.

Critical Safety Rules for Huawei Flashing

Flashing firmware carries inherent risks. To prevent permanent device failure or data loss, adhere to the following safety protocols:

• Model Verification: Always confirm that the firmware matches the exact device model before flashing. Using firmware from a similar but different model can brick the device.
• Data Backup: Back up all personal data first. Flashing stock ROMs typically erases the device.
• Power Management: Ensure the battery is charged above 50%. Do not disconnect the USB cable or power off the computer during the flashing process.
• MediaTek Specifics: When using SP Flash Tool, always use "Download Only." Never use "Format All + Download," as this option erases the IMEI and NVRAM calibration data.
• SPD/Unisoc Specifics: If using tools for SPD/Unisoc chipsets, leave the "Erase NV" option unticked unless you specifically intend to wipe the IMEI and calibration data.
• Out of Scope: This guide does not cover IMEI changing, FRP (Factory Reset Protection) or Google-account bypass, or carrier-lock circumvention. These activities are outside the scope of this technical guide.

Example Huawei Firmware Files

Below are examples of stock ROMs available in the library, illustrating the importance of matching the exact model variant (e.g., the different Y9 Prime versions).

• Huawei Y9 Prime STK-L22: /file/huawei-y9-prime-stk-l22-100996
• Huawei Y9 Prime STK-L22HN: /file/huawei-y9-prime-stk-l22hn-100985
• Huawei Y9 Prime STK-LX1: /file/huawei-y9-prime-stk-lx1-100983
• Huawei Y9 Prime Stark-L21: /file/huawei-y9-prime-stark-l21-100982
• Huawei Y9 Prime STK-LX2: /file/huawei-y9-prime-stk-lx2-100981
• Huawei Y9 Prime Stark-L22B: /file/huawei-y9-prime-stark-l22b-100978
• Huawei Y9 Prime STK-L21: /file/huawei-y9-prime-stk-l21-100977
• Huawei Y9 Jackman-L22: /file/huawei-y9-jackman-l22-100976
• Huawei Y9 FLA-LX2: /file/huawei-y9-fla-lx2-100975
• Huawei Y9 JKM-TL00: /file/huawei-y9-jkm-tl00-100974
• Huawei Y9 JKM-LX3: /file/huawei-y9-jkm-lx3-100973
• Huawei Y9 JKM-L22: /file/huawei-y9-jkm-l22-100971