HSDPA/UMTS (2100MHz or 900/2100MHz variants); EDGE/GPRS/GSM (850/900/1800/1900MHz)

Once the tool reports "Update Successful," close the application and remove the modem. Reinsert it after 10 seconds. 4. Unlocking the Huawei E173

After installing , you gain access to a hidden engineering menu.

Better interaction with modern Windows 10/11 plug-and-play drivers.

The E173Update_11.126.85.00.209_B427 firmware file is a specialized tool designed primarily to "debrand" (remove carrier customization) and "unlock" (remove the SIM lock) the device. This is the main reason users seek out this particular version.

What version you are flashing from (Windows 10, 11, or legacy 7)?

Back up any personal files on the modem's internal memory. How to Flash the E173 11.126.85.00.209 B427 Firmware 1. Download the Firmware File

Corrects issues where the modem disconnects frequently or fails to connect to HSPA+ networks.