Huawei E173u-1 Unlock Firmware Official
This is used if the modem has "customized" or "hard-locked" firmware that prevents simple code entry.
Before attempting to flash or unlock your E173u-1, ensure you have the following: Huawei E173u-1 Unlock Firmware
Do not touch the USB cable, computer, or dongle during this phase. This is used if the modem has "customized"
: Successful firmware updates effectively "flush out" default carrier software, allowing users to use any SIM as long as they provide the correct APN settings. in some cases
To unlock the Huawei E173u-1 3G USB modem, you typically need to generate a specific unlock code based on the device's IMEI and, in some cases, update the firmware to remove carrier-imposed restrictions. Slideshare Prerequisites IMEI Number