On older Huawei/Huawei HiSilicon chipsets, the tool was capable of loading unsigned or custom code (like a custom recovery or a temporary kernel) because it utilized vulnerabilities or unsecured entry points in the Boot ROM. Note: Newer devices utilize secure boot mechanisms that may prevent this tool from working without signed firmware files.

If you’ve ever bricked a Huawei phone (or tried to unbrick one), you may have stumbled across this tool. But what exactly is the Balong USB Downloader? And why is it considered both a lifeline and a Pandora’s box?