Preparation:
Review of this process:
Cause: The update reset the Wi-Fi channel to a country-specific band (e.g., Channel 13 which your laptop doesn't support). Fix: Hard reset the device: Remove battery, wait 30 seconds, reinsert battery. Press and hold the reset button (next to the USB port) for 10 seconds using a paperclip. Then reconfigure Wi-Fi SSID and password. Update Software in HUAWEI E5573CS-323