Tutorials · Security
How to Upgrade Network Device Firmware Safely
Patch switches, gateways, access points and cameras without outages: check release notes, back up, upgrade in a window and verify.
Before you start
- The correct firmware file for the exact model and hardware version
- A configuration backup
- A maintenance window
Step by step
Read the release notes
Check fixes, known issues and the upgrade path. Some versions must be installed in sequence.
Verify the file
Download only from Navijin documentation or your partner, and check the file name matches the model.
Back up the configuration
Save the running configuration before upgrading (see the backup tutorial).
Upgrade one device first
Pilot on a single, non-critical device and test it before rolling out.
Upgrade the rest in a window
Schedule the remaining devices out of hours. Upgrade from the edge to the core.
Verify and record
Confirm the version, check logs and services, and record the change.
Pro tips
- Do not power off a device during an upgrade.
- Subscribe to security advisories and patch internet-facing devices first.
FAQ
Frequently asked questions
How often should firmware be updated?
Review updates monthly and apply security fixes quickly, especially on firewalls, VPN gateways and anything reachable from the Internet.
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Read more →Stuck on a step?
Ask Navijin technical support or an authorised partner for help with your configuration.