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Note: If you want to replace your keyboard, contact the Customer Support Center. Refer to “Calling
Lenovo” on page 158.
Error messages
• Message: 0175: Bad CRC1, stop POST task.
Solution: The EEPROM checksum is not correct (block #6). Have the computer serviced.
• Message: 0177: Bad SVP data, stop POST task.
Solution: Checksum of the supervisor password in the EEPROM is not correct. The system board
should be replaced. Have the computer serviced.
• Message: 0182: Bad CRC2. Enter ThinkPad Setup and load Setup defaults.
Solution: Checksum of the CRC2 setting in the EEPROM is not correct. Press F1 to go to ThinkPad
Setup. Press F9 and then press Enter to load the default setting. Press F10 and then press Enter
to restart the system.
• Message: 0185: Bad startup sequence settings. Enter ThinkPad Setupand load Setup defaults.
Solution: Checksum of the startup sequence setting in the EEPROM is not correct. Press F1 to go to
ThinkPad Setup. Press F9 and then press Enter to load the default setting. Press F10 and then press
Enter to restart the system.
• Message: 0187: EAIA data access error.
Solution: The access to EEPROM is failed. Have the computer serviced.
• Message: 0188: Invalid RFID Serialization Information Area.
Solution: The EEPROM checksum is not correct (block # 0 and 1). The system board should be replaced,
and the box serial number needs to be reinstalled. Have the computer serviced.
• Message: 0189: Invalid RFID conguration information area.
Solution: The EEPROM checksum is not correct (block # 4 and 5). The system board should be replace,
and the UUID needs to be reinstalled. Have the computer serviced.
• Message: 0190: Critical low-battery error.
Solution: The computer turned off, because the battery is low. Connect the ac power adapter to the
computer and charge the battery, or replace the battery with a fully charged one.
• Message: 0191: System Security - Invalid remote change requested.
Solution: The system conguration change has failed. Conrm the operation and try again. To clear
the error, enter the ThinkPad Setup.
• Message: 0199: System Security - Security password retry count exceeded.
Solution: This message is displayed if you enter a wrong supervisor password more than three times.
Conrm the supervisor password and try again. To clear the error, enter the ThinkPad Setup.
• Message: 0200: Hard disk error.
Solution: The hard disk is not working. Make sure the hard disk drive is attached rmly. Run the ThinkPad
Setup; then make sure the hard disk drive is not disabled in the Startup menu.
• Message: 021x: Keyboard error.
Chapter 10. Troubleshooting computer problems 133