Upgrade Ubiquiti AP Firmware

This article assumes you to know how to gain access to the Unifi Controller and are familiar with the interface. The current controller software as of 2/3/2017 is 5.4.9 and is set to automatically upgrade firmware in Settings > Site > Automatically upgrade firmware. If automatic upgrading isn’t working and manually clicking Upgrade Firmware in the controller interface also isn’t working do the following: HFS Screenshot: Once installed:
  • Click Menu
  • Add Files
  • Choose the new firmware
  • Copy the path in the bar at the top (which will be an HTTP path with your IP:port/filename.bin)
  • Click the AP you want to upgrade in the Unifi controller
  • Click Configuration
  • Click Manage Device
  • In the “Custom Upgrade” section paste the path
  • Click Custom Upgrade and confirm
The upgrade will take several minutes to complete and will disconnect all connected devices.  Upgrading more than 4-5 at once will cause the upgrades to fail.  If you wait at least 30 seconds between each firmware upgrade you can upgrade 5 APs with no problems.  I did 10 on my second run rapidly and all failed.  I assume this is either a limitation of the HTTP server or the controller that’s brokering the upgrade. ———————————————————————————— Upgrade firmware without a controller:
  • SSH to the AP
  • Type “upgrade http://dl.ubnt.com/unifi/firmware/U7PG2/3.8.3.6587/BZ.qca956x.v3.8.3.6587.170609.0803.bin” (copy the URL from the web download)
  • Type syswrapper.sh upgrade2