H685-7628_v5.10.xx Firmware Downloads

This page contains firmware downloads for certain variants of the H685 4G router. The models listed below currently use this firmware series (units manufactured since November 2025).

OIder units before this date use the legacy firmware series H685-7628_v3.3.xx (Click here to visit the firmware download page), and due to their hardware specifications are unable to upgrade to the latest firmware series in this page. However firmware for the older series is still updated with feature updates and security patches.

  • H685t-W-P1

(These part numbers are found on the underside label of the router).

Changelog

H685-7628_v5.10.50 – April 2026

  • Two related security issues in the IPsec PSK handling have been fixed. The PSK could be briefly written to standard output during service start, where it could potentially be captured in logs or diagnostic exports. The runtime secrets file holding the PSK was also readable by local non-privileged processes on the device. Remote access to the VPN is not affected. Customers using IPsec VPN are advised to upgrade as soon as possible and to rotate the PSK on each device after upgrading.

H685-7628_v5.10.45 – March 2026

  • Fixed web GUI issue that sometimes cannot click left menu.
  • Shortened waiting time after save button clicked.
  • Fixed SNMPv3 issue that was caused on configured change which then stopped functioning.

H685-7628_v5.10.44

  • Updated SLM750 driver to latest version.
  • Fixed L2TP issue where it waits long time to reconnect.

H685-7628_v5.10.42

  • Added full duplex and speed configuration options on LAN config page.

H685-7628_v5.10.40 – November 2025

  • First firmware level of the series. If your device shipped with H685-7628_v3.3.xx it cannot be upgraded to the later series v5.10.xx.