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Some earlier firmware versions capped the modem at 3.6 Mbps; version 11.126.85.00.209 allows the device to reach its full 7.2 Mbps HSDPA potential. Specifications of the Huawei E173 Max Download Speed 7.2 Mbps (HSDPA) Max Upload Speed 5.76 Mbps (HSUPA) Bands HSDPA/UMTS (2100MHz), EDGE/GPRS/GSM (1900/1800/900/850MHz) Expansion MicroSD card slot (supports up to 32GB) Interface Standard USB 2.0 How to Flash the Firmware
It resolves intermittent disconnect issues found in earlier versions (like 11.126.15.xx), providing a more reliable 3G signal.
Upgrading to this specific version offers several functional advantages over older stock firmware:
The is an essential system update for one of the most reliable and widely used 3G USB modems ever produced . Known for its "portable" nature and plug-and-play simplicity, this specific firmware revision (often associated with Megafon Russia) is highly sought after by users looking to stabilize their connection, unlock carrier restrictions, or enable advanced features like voice calling. Key Benefits of Firmware 11.126.85.00.209 B427
Connect the modem to your PC and ensure it is correctly recognized in the Device Manager.
Run the update file (e.g., E173Update_11.126.85.00.209_B427.exe ) as an administrator. Enter the Flash Code when prompted and do not disconnect the device until the "Update Success" message appears. Important Precautions Прошивки Huawei E173 / Загрузки - 3Ginfo