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Symptoms corrected by the latest BIOS update - ThinkPad X20, X21

Symptoms
Symptoms corrected by version 1.14 (IZET59WW)

  • (New) Support for Windows Me.
  • (New) Support for Intel Pentium III SpeedStep Technology.
  • (New) Support for Intel Pentium III C0 Step.
  • (New) Support for Boot from the external Diskette Drive connected to the USB (Universal Serial Bus) connector on the system unit.
  • (New) POST (Power-On Self Test) elapsed time is improved. Now it takes approximately less than 10 seconds.
  • (Fix) (Windows 98) Repeating hot docking/undocking to/from the ThinkPad Dock may intermittently cause blue screen error if a IBM Turbo 16/4 Token-Ring PC Card 2 is inserted into the ThinkPad Dock.
  • (Fix) (Windows 2000) The warning message of Secondary IDE channel appears when warm docking to the ThinkPad Dock is done.
  • (Fix) (Windows NT 4.0) The system can not enter the hibernation mode.
  • (Fix) The sound can not be turned by the volume button after muted by the mute button.

Symptom corrected by version 1.15 (IZET60WW)

  • (Fix) The system may sometimes hang when a CardBus card is installed in the computer.

Symptoms corrected by version 1.20 (IZET65WW)

  • (Fix) The LCD back light is always turned on when the system is booted with an external display attached, whose display output location is set to External Display.
  • (Fix) Network boot does not work with the IBM 10/100 EtherJet Mini PCI Adapter with 56K Modem by 3Com option installed.
  • (Fix) RPL does not work with IBM Turbo 16/4 Token-Ring PC Card installed.
  • (Fix) (Windows 98) An incorrect drive letter may be assigned to the external diskette drive (USB type) if Legacy Floppy Drives option (for the diskette drive in the ThinkPad UltraBase X2) is set to Disabled in the IBM BIOS Setup Utility.
  • (Fix) (Windows Me) An incorrect drive letter may be assigned to the external diskette drive (USB type) if Legacy Floppy Drives option is set to Enabled in the IBM BIOS Setup Utility.
  • (Fix) The CMOS test in PC-Doctor for Windows fails.
  • (New) Improvement for Fast-boot.
    NOTE:
    This improvement requires the change of default drive boot order from:
    Diskette Drive -> CD-ROM Drive -> Hard Drive
    to: Diskette Drive -> Hard Drive -> CD-ROM Drive.
    So, to use bootable CD-ROM (like Recovery CD), change the boot order from the default to:
    Removable Devices -> ATAPI CD-ROM Drive -> Hard Drive in IBM BIOS Setup Utility, Startup menu.

Symptoms corrected by version 2.07 (IZET88WW)
CAUTION for users with the Intel/Xircom Mini PCI combo cards:
This BIOS version will only work with Intel Boot Agent(IBA) 4.0 or later for WakeOnLan(WOL) based remote installations. If you plan to do remote installations with IBA versions prior to 4.0, then you must use a previous BIOS version to 1.20. Failure to do so may cause the ThinkPad system to hang.

  • (New) Support for boot feature from IBM USB Portable CD-ROM Drive (P/N 33L5151).
    NOTE: To support this function, IBM USB Portable CD-ROM drive driver for DOS (version 1.0 or higher) must be installed in the CD-ROM with El Torito Bootable CD-ROM format. The CD-ROM drive driver is available in another package, IBM USB Portable CD-ROM Drive (33L5151) Driver for DOS Version 1.0 (or higher).
  • (New) (PC-DOS) The IBM USB Portable CD-ROM Drive (P/N 33L5151) can be used with an IBM External USB Diskette Drive when the system is booted from the USB Diskette Drive by PC-DOS.
    NOTE: To support this function, get an additional package, IBM USB Portable CD-ROM Drive (33L5151) Driver for DOS Version 1.0 (or higher) at the same time, and install it with the PC-DOS diskette.
  • (New) POST (Power-On Self Test) elapsed time is a improved.
  • (New) (Windows NT 4.0) When the computer is powered with AC power and is using a PC Card, it enters standby mode, instead of suspend mode.
  • (Fix) The system can not resume normal operation and hangs if Hibernate when low battery mode option is enabled and when the system goes into suspend mode.
  • (Fix) The system can not wake up by the LCCM (LANClient Control Manager) server with IBM 10/100 Ethernet Mini PCI Adapter with 56K Modem (Intel models).
  • (Fix) Some keys on the French layout keyboard do not work to enter a power-on password when the system resumes normal operation from suspend mode.
  • (Fix) (Windows 2000) The LCD has blank a screen when the following conditions are met:
    • An external display is attached to the system.
    • The display output location is set to External Display (by pressing Fn+F7 keys).
    • Removing the external display.
    • Changing the display output location to LCD (by pressing Fn+F7 keys).
    • The LCD screen is blank
  • (Fix) The CD-ROM drive in the ThinkPad UltraBase X2 may not be recognized when the system resumes normal operation from suspend or hibernation mode.
  • (Fix) (Windows 2000) If the LCD and external display have different settings of screen size/color depth from each other and when the display output location is switched, some settings are changed.
  • (Fix) When Flash BIOS Updating by End-Users option is disabled, but a supervisor password is set, BIOS updating should be enabled, but is not.
  • (Fix) (Windows 2000) The system does not go into hibernation mode at critical low battery condition.
  • (Fix) (Windows 2000) Battery hour becomes shorter on the system with IBM 10/100 Ethernet Mini PCI Adapter with 56K Modem (3Com models) installed.
  • (Fix) The TrackPoint does not work on warm-undocking from the ThinkPad UltraBase X2.
  • (Fix) (Windows 98) The TrackPoint does not work on hot-docking/ undocking to/from the ThinkPad UltraBase X2.
  • (Fix) (Windows 98) The system hangs when the system resumes normal operation from hibernation mode after warm-undocking from the ThinkPad UltraBase X2.
  • (Fix) The system hangs if a power-on password is installed and the AC adapter is attached or removed while resuming from suspend mode.
  • (Fix) Any USB devices attached to the ThinkPad Dock do not work.
  • (Fix) (DOS) Reboot by BIOS-call function causes the system to hang.
  • (Fix) 0188 or 0189 error intermittently occurs during power-on.
  • (Fix) Some USB devices attached to the system do not work.
    NOTE: To fix this problem, get an additional package, ThinkPad X20 Embedded Controller Program Version 1.24 (or higher), and update the embedded controller program in the system at the same time.

Symptoms corrected by version 2.10 (IZET90WW)

  • (New) Add a Lock BIOS settings menu to BIOS setup.
  • (Fix) After the system is hot-docked with the ThinkPad UltraBase, the CD-ROM drive in ThinkPad UltraBase X2 is not detected when rebooted.
  • (Fix) Some PCI video cards in ThinkPad Dock do not work when the system is rebooted by pressing the Alt+Ctrl+Del keys.
  • (Fix) The system can't be booted from the hard disk drive whose partition ID is n5h (n is 1 or greater).
  • (Fix) Diskette write protect test in PC-Doctor DOS fails.
  • (Fix) The SMBIOS does not return Asset Tag Number.
  • (Fix) If both Will not suspend even when LCD is closed and Suspend/hibernate when docked options are enabled and the system is attached to the ThinkPad Dock, the LCD does not work when the LCD is closed then opened.
  • (Fix) (Windows Me and Windows 2000) If USB BIOS Support option is disabled in IBM BIOS Setup Utility, the system hangs when the system resumes normal operation from suspend mode.
  • (Fix) System booting time becomes slow if a LG CD-ROM CRN-8245B is installed in the ThinkPad UltraBase X2 or ThinkPad Dock.

Symptoms corrected by version 2.12 (IZET92WW)

  • (New) When the LCD panel is closed, audible beeps will sound and the suspend mode indicator will blink until suspend operation is complete. This is to avoid hard disk drive crash by indicating suspend operation completion.
  • (Fix) The Device Manager shows Code 12 and 10/100 EtherJet Mini PCI Adapter with 56K Modem does not work at all when the adapter equips Intel Boot Agent 4.0.15.
  • (Fix) It takes about 3 minutes to boot the system when a hard disk drive is installed in the ThinkPad Dock.

Symptoms corrected by version 2.14 (IZET94WW)

  • (New) (Japanese market only) Support for Panasonic Portable CD-R/RW Drive (KXL-RW21AN, USB type).
  • (Fix) If the system is turned off during the system boot immediately after BIOS items are changed and saved in the IBM BIOS Setup Utility menu, the changed BIOS items are reset to default.
  • (Fix) Some PC Cards that are 3.3 voltage driven do not work.
  • (Fix) (Windows Me/2000) If the power-on password is set, the system can not resume normal operation from hibernation mode by LCCM (LANClient Control Manager) program because an unnecessary power-on password appears during the resume operation.
  • (Fix) (Windows Me) When the system enters the screen-off mode and you leave the system untouched for a while, and then you press any key to enable the screen, the system may still have a blank screen and hang.
  • (Fix) PS2 USBBIOS command of ThinkPad Utility for DOS does not work. ThinkPad Utility for DOS does not work.

Symptoms corrected by version 2.16 (IZET96WW)

  • (Fix) The system ca not be booted from the hard disk drive whose partition ID is n5h (n is 1 or greater).
  • (Fix) Under Microsoft Windows 2000 the LCD has a blank screen when the system is hot-undocked from the ThinkPad Dock option with an external display attached if the display device switch is set to CRT Display only.
  • (Fix) If the BIOS is initialized on the system with some IBM Token- Ring PC Cards (e.g. Auto 16/4 Token Ring PCMCIA Card), the system may display EXPANSION ROM NOT INITIALIZED - PCI NETWORK CONTROLLER error messages and halts during boot.
    NOTE
    : This occurs if the BIOS Ver 2.14 was installed.
  • (Fix) (Windows NT 4.0) Some PC Cards (e.g. IBM Microdrive) may not be recognized by CardWizard and not work. NOTE: This occurs if the BIOS Ver 2.14 was installed.

Symptoms corrected by version 2.17 (IZET97WW)

  • (New) Support for Bluetooth.

Symptoms corrected by version 2.19 - (IZET98WW)
NOTE: This BIOS version will only work with Embedded Controller Program Version 1.29 (or higher). Get an additional package, "Embedded Controller Program Version 1.29 (or higher)", and update embedded controller program in the system with it at the same time.

  • (New) Support for Windows XP.
  • (New) POST (Power-On Self Test) elapsed time is improved.
  • (New) (Fast resume) Elapsed time of resuming normal operation from suspend mode is improved.
  • (Fix) (Windows 95) When a 3Com Ethernet PC Card, 3CCFE575CT, is inserted in suspend mode, the system hangs after resuming normal operation from suspend mode.
  • (Fix) If the system resumes normal operation from suspend mode by pressing the power switch, the LCD has blank screen.
  • (Fix) The system hangs if Matrox video driver is installed.
  • (Fix) (Windows 2000) If an IBM External USB Diskette Drive is attached to the ThinkPad Dock, an error message is displayed after hot-undocking the system from the ThinkPad Dock.

NOTE: To support this feature, get an additional package, Embedded Controller Program Version 1.28 (or higher), and update embedded controller program in the system with it at the same time.

Symptoms corrected by version 2.21 - (IZET99WW)
NOTE: This BIOS version will only work with Embedded Controller Program Version 1.31 (or higher). Get an additional package, "Embedded Controller Program Version 1.31 (or higher)", and update embedded controller program in the system with it at the same time.

  • (Fix) (Windows 2000) The LCD has blank screen when the following conditions are met: 1. "Will not suspend even when LCD is closed" option is enabled. 2. The system is attached to the ThinkPad Dock or ThinkPad Port Replicator, also an external display is attached. 3. Boot the system with the LCD closed. 4. Open the LCD at the Windows logon screen. 5. Press Fn+F7 keys several times to enable the LCD, but the LCD does not work.
  • (Fix) The system can not export digital video data to Digital Video cameras through the IBM IEEE 1394 CardBus Card.
  • (Fix) (Windows 98) The system may reboot intermittently when it hot-docks with the docking station with a PS/2 mouse attached.
  • (Fix) (Windows 98) Both the TrackPoint and the PS/2 mouse are working after resuming normal operation from suspend mode even if TrackPoint option is set to "Auto-disable".

Symptoms corrected by version 2.22 - (IZET9AWW)
NOTE: This BIOS version will only work with Embedded Controller Program Version 1.36 (or higher).

  • (Fix) (Japanese Windows Me only) After the system enters the screen-off mode, and an attempt to enable the screen by pressing any key is performed, the screen remains blank and the ThinkPad system hangs.

Symptoms corrected by version 2.23 - (IZET9BWW)
NOTE: This BIOS version will only work with Embedded Controller Program Version 1.36 (or higher).

  • (Fix) (Windows XP) FN+F7 does not function properly after waking from suspend.

Symptoms corrected by version 2.25 - (IZET9DWW)
NOTE: This BIOS version will only work with Embedded Controller Program Version 1.36 (or higher).

  • (Fix) (Windows XP) Event viewer shows the embedded controller (EC) hardware error.
  • (Fix) (DOS) The LS240/120 device installed in the UltraBase X2 option can not be opened/read when the system resumes normal operation from suspend mode.

Affected configurations
Any ThinkPad X20, X21 system

Solution
Click here to download the latest BIOS update diskette.
Click here to download the latest diskless BIOS update.



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Country Availability
AvailableWorldwide
Document ID : HT036017
Legacy Document ID : MIGR-4R3M3F
Last Updated :
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