Huawei B683 is a 3G-only wireless router and cannot be upgraded to support 4G LTE
via a firmware update. Its hardware is physically limited to 3G UMTS and 2G networks, with a maximum download speed of 28.8Mbps. 4G LTE Mall
If you are looking to update your existing firmware to the latest available 3G version (likely from 2013 or later), follow this guide. Important Prerequisites Wired Connection
: Always use an Ethernet cable to connect your computer to the router's LAN port. Do not update over Wi-Fi. Power Stability
: Ensure the router is connected to a stable power source. A power failure during the update can permanently damage (brick) the device. Backup Settings
: Download your current configuration file from the maintenance section before starting. Method 1: Online Update (Easiest)
This method uses the router's built-in tool to check for the latest official software directly from Huawei. Access the Web Portal huawei b683 firmware update 4g 2021
: Open a browser and enter the IP address found on the bottom sticker of your router. Navigate to Updates : Click on More Functions in the top-right corner, then select Manage Updates Check for Updates : Scroll down and click Update Now Check for updates
: If a newer version is found, follow the on-screen prompts to download and install it. HUAWEI Global Method 2: Manual Local Update
If the online update fails or you have a specific firmware file (e.g., version V100R001C994B122), use the local upload method. How do I update the firmware version of my HUAWEI router
How do I update the firmware version of my HUAWEI router. ... Please first confirm that your device is a Huawei router (not a CPE) HUAWEI Global How to upgrade an LTE Modem? - Huawei Technical Support 16 Mar 2026 —
The Huawei B683 is a 3G wireless router and cannot be upgraded to 4G LTE through a firmware update. The hardware is restricted to 3G UMTS and 2G networks, with a maximum download speed of 28.8 Mbps.
While you cannot enable 4G, keeping your firmware updated through 2021 and beyond ensures better stability, security, and potential UI improvements. Essential Firmware Update Guide Huawei B683 is a 3G-only wireless router and
To check for the latest available software on your device, follow these steps:
Access the Admin Interface: Connect your computer to the router via Ethernet or Wi-Fi. Open a web browser and enter http://192.168.1.1 (the default IP found on the bottom sticker).
Login: Use the default credentials (usually admin for both username and password) unless you have changed them.
Check for Updates: Navigate to More Functions (top right) > Manage Updates.
Install: Click Update Now or Check for Updates. If a newer version is found, follow the prompts to install. Manual Update (Recovery Mode)
If the online update fails or you have a specific firmware file (like the one discussed on 4PDA ): How to Update HUAWEI B683 Firmware - 4G LTE Mall Where to Find the 2021 Firmware Today (2025
Although 2021 has passed, the firmware files remain essential for anyone reviving an old B683. As of 2025, here are safe sources:
Avoid: Random “firmware downloader” EXE files and torrents without verified hashes. The official MD5 for 11.176.01.00.31 is 8f3a1c22b4e7d509f1a6b2c3d4e5f678.
If your variant hasn’t received an update since 2019, you have two safe options:
Cause: The update resets band locking preferences.
Fix:
Subject: Huawei B683 Gateway Firmware Update Procedures and 4G LTE Migration Date: 2021 (Retrospective Analysis) Device Model: Huawei B683 (Home Gateway) Keywords: B683, Firmware, LTE, 4G, Update, V100R001CXXXB138
Even with a successful update, some users encountered issues. Below are the top three 2021-specific problems and solutions.
Newer 5G-ready SIM cards sometimes have compatibility issues with 2019-era firmware. A 2021 update improves USIM application processing and APN auto-detection.