1. Yubico
  2. Individuals
  3. Individual Guides

Where to find YubiKey Firmware

Avatar
Robert
Created - Updated

This article is intended to guide you in finding the firmware version of your YubiKey on the Yubico Authenticator, Mobile applications, YubiKey Manager, and YubiKey Manager CLI (Command Line Interface). 

Note: Yubico Security Keys do not come with Serial Numbers (S/N). 

 

Yubico Authenticator for Desktop

  1.  Download and install the Yubico Authenticator for desktop, available here.

  2. Insert your YubiKey via the USB port on your computer and open the Yubico Authenticator. 

  3. You will see the Device Type, Serial Number (S/N) and the Firmware (F/W) version of the YubiKey currently plugged in. 

Firmware: Authenticator

 

 

Mobile applications (iOS and Android): 

iOS: Using the Yubico Authenticator

  1. Open the Yubico Authenticator app and go to the three dots in the upper right corner (...) -> Configuration.
  2. Either Plug in the YubiKey into the Phone or pull down on the screen and scan an NFC enabled YubiKey. 
  3. You will see the Device Type, Firmware Version (F/W) and Serial Number (S/N) of the YubiKey that is currently plugged in. 

firmware: iOS mobile

 

Android: Using the Yubico Authenticator

  1. Open the Yubico Authenticator app and click on the Hamburger Menu in the upper left corner (☰) . 
  2. Either Plug in the YubiKey into the Phone or hold an NFC enabled YubiKey to your NFC Scanner.
  3. You will see the Device Type, Serial Number (S/N) and Firmware Version (F/W) of the YubiKey that is currently plugged in. 

 

YubiKey Manager:

  1.  Download and install the YubiKey Manager, available here. 

  2. Insert your YubiKey into the USB port on your computer and open the YubiKey Manager. 

  3. You will see the Device Type, Serial Number (S/N) and the Firmware (F/W) version of the YubiKey currently plugged in. 

Firmware: Manager

 

YubiKey Manager Command Line Interface: 

  1. Download and install YubiKey Manager CLI from its related release page that corresponds to your operating system. 
  2. Insert your YubiKey.
  3. Open the CMD (Windows) or Terminal (macOS/Linux) and run the command ykman info. This will print the Device Type, Serial Number (S/N) and Firmware version (F/W) of the plugged in YubiKey. 

firmware: ykman.png