• https://community.ui.com/questions/UAP-Pro-flashing-white-blue-will-not-stop-cannot-be-located-is-it-dead/835215c4-e033-4c6e-82f6-8b6c4c88bb7a
• kurzanleitung-uc-ck.pdf
• unifi_ap_ap-lr_user_guide.pdf
• unifi_ap-pro_ug.pdf
• unifi_ap-ac-pro_qsg.pdf
• https://ui.com/download/releases/firmware
• https://help.ui.com/hc/en-us/articles/360043360253-UniFi-Recovery-Mode
• https://www.davidmello.com/unifi-cloud-key-fix/
• https://unifi.ui.com/network-servers

• Download the most recent firmware for your device, found here.
• Power off the system.
• Press and hold the Reset button and then connect it to the power source.
• Continue holding the Reset button for 10 seconds, until the LED flashes blue and white.
• Open your browser and type the IP address for the Cloud Key.
  • Note: The IP address comes from your DHCP server. If it has not been assigned an IP address, you can try the fallback: 192.168.1.30.
  • If your Cloud Key does have an IP address assigned by the DHCP server, the fallback IP will not work.
  • User Tip: If you don't know your Cloud Key's IP address, you can use thearp -a SSH command, or software such as nmap to find the IP address.
• You will be taken to the Recovery Mode screen. From here you can reset, reboot, power off and most importantly upload an updated firmware bin file.
• Upload the firmware you downloaded in step (1).
• Once it is uploaded, reboot the Cloud Key to complete the firmware upgrade.
• The LED will flash white while upgrading and turn into a steady white when it is complete.

The reset button serves two functions:

• Restart It will restart the device when you press and release it quickly.
• Restore Factory Defaults When you press and hold it for more then five seconds, it will restore the device to the factory default settings.

~~DISCUSSION~~