Navigate to System Tools > Firmware Upgrade (or System Management > Software Upgrade ). The exact wording varies by firmware.
Download and install a TFTP server (e.g., TFTPD32) on your PC. Huawei Hg8245h Firmware Upgrade
load pack by tftp svrip 192.168.100.10 remotefile HG8245H_V300R016C10S150.bin The system will output a hash and ask for confirmation. Type yes and press Enter. Navigate to System Tools > Firmware Upgrade (or