Huawei Hg658b Firmware High Quality Review

Do not use random file-sharing sites (Mediafire, 4shared) unless you verify checksums. Here are safe sources:

If you cannot find a firmware that works, do not panic. The HG658b is notoriously picky. Sometimes, the best "firmware update" is switching the device to bridge mode and letting a modern router handle the heavy lifting. Huawei Hg658b Firmware

This is the most critical concept to understand regarding the Huawei HG658b. Huawei manufactures the hardware, but they sell it to ISPs (Internet Service Providers). These ISPs pay Huawei to modify the "stock" firmware to suit their needs. Do not use random file-sharing sites (Mediafire, 4shared)

No.