If your HG8245W5 is working fine, – security and stability updates come from your ISP. Only update if you have a specific bug (e.g., WiFi drops, VLAN issues, VoIP failure) and your ISP confirms a fix exists.
Most HG8245W5 units are provided by ISPs like Globe, PLDT, or Etisalat. echolife hg8245w5 firmware download top
If you use this device for a business, you can try requesting a login for the Huawei Enterprise website. They have a support section where you can raise a ticket to request the specific software version for your hardware version. If your HG8245W5 is working fine, – security