Flashing third-party firmware officially voids your Huawei warranty.
Reliable links are usually hosted on developer forums such as XDA Developers , 4PDA (requires translation), or specialized GSM hosting sites like GSM Forum . Avoid "survey-locked" sites, as these often contain malware instead of actual firmware. How to Flash the E5336bs-2 e5336bs2 unlock firmware link
Open the firmware update tool. If prompted for a "Flash Code," you may need to use a Huawei code generator based on your IMEI. 4PDA (requires translation)
Sometimes you need to flash a separate "WebUI" file to see the new settings in your browser. Critical Risks and Warnings e5336bs2 unlock firmware link
Install the "Huawei Mobile Connect" drivers so your PC recognizes the hotspot in "Project Mode" or "Force Download Mode."