1. Introduction Huawei Smartphone Multi Download Software v1.0.0.2 (often abbreviated as HMS Multi-Download or Multi-DL ) is a PC-based firmware flashing and service tool developed by Huawei Technologies Co., Ltd. Unlike consumer-facing update methods (OTA or HiSuite), this tool is part of Huawei’s internal service suite, designed for authorized service centers, repair technicians, and engineering teams.