Power-on or Hard Drive Fingerprint passwords not accepted using External Lenovo Fingerprint USB Keyboard - ThinkPad T420, T420i, T420s, T520, W520, X220, X220 Tablet


Users are unable to use some versions of the External Lenovo Fingerprint USB Keyboard to successfully authenticate Power-on or Hard Drive passwords. When the fingerprint is swiped, the entry is validated, but then rejected as incorrect. Both Power-on or Hard Drive password are impacted by & passwords are required to allow the user access to the system.

Enrollment and using the device for Windows-based passwords is not impacted, nor is using the integrated fingerprint reader.

To know whether your USB fingerprint keyboard will work or not, refer to the label on the bottom of the external keyboard. Those keyboards with "Fru P/N" and/or "P/N" such as 57Y4780, 41R008, and 89P9000 will experience the issue with the affected systems.

Those keyboards with "Fru P/N" and "P/N" starting with 03X, such as 03X8001, will not experience this issue.


Affected configurations

All of the following ThinkPad systems with versions of the External Lenovo Fingerprint USB Keyboard sold by Lenovo, produced before February, 2011:

  • T420, T420i, T420s, T520
  • W520
  • X220, X220 Tablet

See below for detailed part number list by language.

Language Older FRU doesn't work
US English 57Y4780 03X8001
Arabic 57Y4781 03X8002
Arabic/French 57Y4782 03X8003
Belgium/French 57Y4783 03X8004
Belgium/UK 57Y4784 03X8005
Brazil/Portuguese 57Y4785 03X8006
Bulgarian 57Y4786 03X8007
Chinese/USTaiwanese 57Y4787 03X8008
Czech (QWERTY or ABB) 57Y4788 03X8009
Danish 57Y4789 03X8010
Dutch 57Y4790 03X8011
French 57Y4791 03X8012
French Canadian 57Y4792 03X8013
French Canadian 57Y4793 03X8014
German 57Y4794 03X8015
Greek/Greece, Cyprus 57Y4795 03X8016
Greek/US 57Y4796 03X8017
Hebrew 57Y4797 03X8018
Hungarian 57Y4798 03X8019
Iceland 57Y4799 03X8020
Italy 57Y4800 03X8021
Japanese 57Y4801 03X8022
Korean 57Y4802 03X8023
LA Spanish 57Y4803 03X8024
Norwegian 57Y4804 03X8025
Polish 57Y4805 03X8026
Portugese 57Y4806 03X8027
Russian/Cy US 57Y4809 03X8028
Slovak 57Y4811 03X8029
Spanish 57Y4812 03X8030
Swedicsh/Finn 57Y4813 03X8031
Swiss, F/G 57Y4814 03X8032
Thailand 57Y4815 03X8033
Turkish 57Y4817 03X8034
UK English 57Y4818 03X8035
Us Euro (International) 57Y4819 03X8036
Slovenian 57Y4820 03X8037
Estonia 57Y4808 03X8038
Romanian 57Y4807 03X8039
Serbian/Cyrilic 57Y4810 03X8040
Turkish 57Y4816 03X8041

Stand-alone external fingerprint readers, including those sold under the IBM brand prior to 2008 may also be impacted.



A BIOS update is being prepared for this problem and this tip will be updated when it is available, targeted for Fall of 2011.



Authenticate using passwords rather fingerprints, or use the fingerprint reader integrated in the ThinkPad system unit (if configured).

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  • Alias ID:
  • Document ID: HT051864
  • Last Updated :17 Jun 2014
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