For most network administrators, the standard manual process involves downloading the firmware file (usually with a .cc extension) and a patch file ( .pat ) from the Huawei Enterprise Support Portal .
<Huawei> ftp 192.168.1.100 [Huawei-ftp] get S5735-V200R019C10SPC500.cc [Huawei-ftp] bye huawei switch firmware upgrade link