To manage or update the firmware for your Huawei B660 3G Router

, you can use the device's web-based management interface. This model is generally updated through a manual check within the settings or by uploading a specific firmware file provided by your network carrier.  How to Access Firmware Settings 

Connect to the Router: Connect your computer or phone to the Huawei B660 via Wi-Fi or an Ethernet cable.

Open the Admin Page: Enter 192.168.1.1 into your web browser's address bar.

Log In: Use the default credentials if you haven't changed them (typically Username: admin / Password: admin).

Check for Updates: Navigate to Maintenance or System > Firmware Update. Here you can check for online updates or perform a manual upgrade.  Update Methods 

Online Update: The router automatically checks Huawei's servers for the latest version compatible with your carrier.

Manual Upgrade: If you have a specific firmware file (often with a .bin or .zip extension), you can click Browse, select the file from your computer, and then click Upload or Update.  Important Precautions 

Do Not Power Off: Never disconnect the power during an update, as this can permanently "brick" (damage) the device. Carrier Specifics : Firmware for the

is often customized by carriers (like MTN or Airtel). Using generic firmware may disable certain features or cause the device to lose carrier-specific settings.

No Rollbacks: Most Huawei routers do not allow you to revert to an older firmware version once an update is complete.  How do I update the firmware version of my HUAWEI router

This guide provides an overview of the Huawei B660 3G Wireless Gateway, the risks associated with flashing firmware, and the known procedures for updating or modifying the device.

⚠️ IMPORTANT DISCLAIMER: Proceed at your own risk. Flashing firmware carries a significant risk of "bricking" your device (rendering it permanently unusable). Modifying firmware to unlock network bands or SIM slots may be illegal in your jurisdiction or violate your service agreement. I am not responsible for any damage to your hardware.

Issue 2: Router is Bricked (Power light cycles, no Wi-Fi)

• Cause: Power loss during update or wrong file.
• Fix (Recovery Mode):
  1. Turn off the router.
  2. Hold the Reset button (pinhole) on the back.
  3. While holding Reset, power on the router. Hold for 10 seconds.
  4. Connect your PC to LAN port 1 and set a static IP to 192.168.1.10.
  5. Try to access the recovery web server at 192.168.1.1 (often a basic blue screen). Upload the correct firmware immediately.

8.2 USB Recovery Steps

1. Power off B660.
2. Hold WPS button, then power on.
3. Keep holding until LED flashes red/green.
4. Connect PC USB, run Huawei_Recovery_Tool.exe.
5. Upload original firmware .bin.

5.1 Web‑based upgrade (recommended)

1. Connect PC to B660 LAN or Wi‑Fi.
2. Open http://192.168.8.1 (default – check label).
3. Login (admin / admin or admin / your‑WiFi‑password).
4. Go to Settings → Device → Firmware Update.
5. Click “Local update” → select the .bin file.
6. Confirm – router reboots after 3–5 minutes.
7. Do not power off during update.

Dump NVRAM settings

nvram show

- squashfs-root/ (filesystem)

Backup & preparation

1. Back up your router configuration from the admin interface.
2. Save current firmware version and serial number.
3. Ensure a stable power source (use UPS if available).
4. Use a wired Ethernet connection to the router for the update.