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IoT Gateway

Firmware Updates

How to check the current gateway firmware version, install over-the-air updates, and enable automatic updates.

Why Firmware Updates Matter​

HPzenAi regularly releases gateway firmware updates that improve RS485 device compatibility, fix connectivity edge cases, enhance security, and add new features. Keeping the gateway on the latest firmware is recommended for all installations. Updates are delivered over the air (OTA) via the internet connection and require no physical access to the gateway.

Checking the Current Firmware Version​

The current firmware version, build date, and available update status are all accessible from the HPzenAi app.

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Open the HPzenAi app.

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Installing a Firmware Update Over Wi-Fi (OTA)​

Firmware updates are downloaded directly to the gateway over the active internet connection (Wi-Fi or SIM). The process takes 3–6 minutes. Do not power off the gateway or disconnect it from the internet during an update.

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Steps​

  • Ensure the gateway is connected to Wi-Fi or SIM and the app shows it as Online.
  • Go to Device Settings → Firmware → Update in the HPzenAi app.
  • Tap 'Install Update'. The gateway downloads the firmware package — download progress is shown in the app.
  • Once downloaded, the gateway installs the firmware and restarts automatically.
  • The gateway LED will go dark during the restart, then return to solid green when the update is complete.
  • Open Device Settings → About to confirm the firmware version has updated to the new release.
  • Do not power off the gateway during the installation phase — this can corrupt the firmware and require a recovery procedure.

Enabling Automatic Updates​

Automatic firmware updates install the latest firmware during a configured maintenance window with no user action required. Auto-updates are recommended for all deployments where continuous operation is the priority.

Steps​

  • Go to Device Settings → Firmware → Auto-Update in the HPzenAi app.
  • Toggle 'Enable Auto-Update' on.
  • Set the maintenance window — the default is 2:00 AM to 4:00 AM local time.
  • The gateway downloads and installs updates silently during the maintenance window.
  • A notification is sent to the app when an update has been successfully installed.

Firmware Update Troubleshooting​

If a firmware update fails or the gateway becomes unreachable after an update attempt, follow these steps.

Steps​

  • If the update download stalls, check that the gateway has stable internet connectivity and retry.
  • If the gateway is unreachable after an update, wait 5 minutes — the update installation may still be in progress.
  • If the gateway does not recover after 10 minutes, power cycle it by disconnecting and reconnecting the 12V DC supply.
  • If the gateway boots but shows an error or older firmware version, retry the firmware update from the app.
  • Contact HPzenAi support if the gateway does not respond after a power cycle following a failed update — a USB recovery procedure may be required.