This post provides Huawei E177 Update 11.126.25.00.221 B427 (Zain Sudan Unlocker Free), which can be downloaded from the link provided at the end of the post. Once downloaded, extract in a folder using unzip software, and process as mentioned in the respective post. Wrong firmware/software change of a Huawei / ZTE modem/router may dead your device permanently. While running the Huawei firmware update, it will prompt for firmware/flash code as a password. You can generate the firmware code from the universal master code tool.
Huawei e177u-1 firmware update
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