Upgrading or rewriting the internal software provides distinct benefits:
: Huawei E173u-1 Firmware Update 11.126.85.00.00 (or any global generic version ending in .00 ).
Do not touch the modem, do not unplug it, and do not let your computer fall asleep during this phase. The LED light on the modem will blink erratically. This is normal behavior. Phase C: Finalizing the Success
Uninstall your old carrier software from your PC control panel, replug the modem, and install the new Mobile Partner software. Configuring APN Settings for New Networks
Network providers lock modems by modifying the device’s internal firmware or software dashboard. When you insert an unauthorized SIM card, the device rejects it and prompts you for an unlock code (NCK code) or completely blocks network access. Huawei E173u-1 Unlock Firmware
Look closely at the sticker underneath the modem cap or behind the SIM slot. It must explicitly say . Do not attempt this with an E173u-2, E173s-1, or E173s-2, as their internal hardware chipsets differ. 2. Gather Necessary Information
This article will walk you through everything you need to know—from the risks and rewards, to the exact step-by-step flashing process.
The Ultimate Guide to Huawei E173u-1 Unlock Firmware: Free Your USB Modem
Despite best efforts, things go wrong. Here is how to recover. This is normal behavior
Ensure the official Huawei drivers or the "Mobile Partner" software is installed so your PC recognizes the modem's COM ports.
Flashing custom "unlock firmware" is a legacy hacking technique best reserved for hardware enthusiasts who understand the risks of corrupting the device's bootloader. Given the decline of 3G infrastructure, extensive modification of this hardware is rarely worth the risk of damaging the device.
Use a "Universal Master Code" tool to calculate the Flash and Unlock codes using your 15-digit IMEI. Firmware De-customization: Disconnect from the internet and plug in the modem. Run a standard (unbranded) Huawei firmware update program. When prompted for a password, enter the Flash Code Dashboard Update:
Updating your firmware or unlocking your Huawei E173u-1 offers several distinct advantages: When you insert an unauthorized SIM card, the
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Copy the (do not confuse this with the Unlock/NCK code). Step 3: Flash the Unlock Firmware
E173u-1_Update_21.321.03.00.00_Generic.dload