Never start a firmware update on a whim. Follow these precautions to ensure the process completes safely:
This guide covers everything you need to perform a successful update while avoiding the common pitfalls that can "brick" your router. Why Update Your HG8245W5 Firmware? Huawei Hg8245w5 Firmware Update
Many ISPs push updates automatically at 3 AM. To force a check: Never start a firmware update on a whim
If the web interface fails or you cannot log in, use TFTP: Huawei Hg8245w5 Firmware Update
If the device acts strangely after an update, perform a factory reset. Hold the small "Reset" button on the side for 10 seconds. You will need to re-enter your ISP settings (PPPoE username/password) afterward.