The E173 hardware technically supports voice calls, but some carrier-specific firmware versions have this feature disabled. Updating to the 11.126.85.00.209_B427 firmware is widely reported to unlock this hidden feature, enabling voice functionality.
Whether your device has an active from an operator. Share public link
Supports HSDPA download speeds up to 7.2 Mbps and HSUPA upload speeds up to 5.76 Mbps .
Provides better support for modern operating systems like Windows 10/11. 2. Preparing to Update Your Huawei E173
If prompted for a password, enter your generated Flash Code. Click Start and wait for the progress bar to reach 100%. Do not unplug the modem during this process! Once you see the "Update Successful" message, click -huawei firmware E173 11.126.85.00.209 B427-
Updating to firmware 11.126.85.00.209 B427 updates the core capabilities of the device. It will alter the visual software interface that pops up when you plug it into your computer unless you explicitly flash an unbranded, universal dashboard alongside it. Troubleshooting Common Flashing Issues Root Cause Error: Find Port Fail PC cannot map the diagnostic ports.
Run the downloaded 11.126.85.00.209 B427 flash executable as an administrator. 3. Follow the On-Screen Instructions
For those holding onto the trusty Huawei E173 as a backup connection or for use in areas with strong 3G coverage, B427 is the recommended firmware to run. It ironed out the bugs of the previous generation. Just ensure you use a quality tool (like Huawei Flasher) and do not interrupt the update process.
Users typically run a standalone .exe or .rar update package. During this process, it is critical not to disconnect the device to avoid "bricking". The E173 hardware technically supports voice calls, but
Leave it for 10 minutes. If completely frozen, verify power remains continuous before attempting a recovery restart. Firmware upgrades do not unlock SIM slots.
Locate a reliable source for the 11.126.85.00.209 B427 file (usually a .exe flasher). 3. Step-by-Step Installation Guide
Updating older baseband software to version 11.126.85.00.209 offers critical functional improvements for your system architecture: 1. Enhanced Telephony and Voice Integration
branded E173 modems. While it is considered one of the final and most stable versions for this 3G dongle, it is widely used globally to "de-brand" or update other E173 variants to improve compatibility with newer operating systems and third-party dashboards. Google Groups Key Specifications & Performance : Supports 3G HSDPA up to and HSUPA up to 5.76 Mbps. Hardware Compatibility : Frequently used with the hardware version. Platform Support Share public link Supports HSDPA download speeds up to 7
⚠️ : This is not an official Huawei process. The software is from community sources, and you will not receive any support from your mobile carrier or device manufacturer.
This usually indicates a bad flash sector on the physical hardware or an incorrect sub-model mismatch. Do not unplug the device immediately; instead, restart the updater tool and attempt to rewrite the firmware to recover the bootloader.
Fully close all network diagnostic applications, browser tabs, or mobile operator dashboards running on your computer.
This firmware is often a prerequisite for using third-party unlocking tools like those found on SlideShare