Lenovo ThinkPad T21 English - 46L4325 - ThinkPad T20, T21User's Reference guid - Page 34
Troubleshooting - error 0189
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Hardware troubleshooting Troubleshooting Error codes or messages Notes: 1. In the charts, x can represent any character. 2. The version of PC-Doctor referred to here is PC-Doctor for Windows. Message 0175: Bad CRC1, stop POST task 0187: EAIA data access error 0188: Invalid RFID serialization information area or bad CRC2 0189: Invalid RFID configuration information area 0190: Critical low-battery error 0193: RF antenna has been removed 0194: The computer has been carried through the security gate 0200: Hard disk error Cause and action The EEPROM checksum is not correct (block # 6). Have the computer serviced. The access to EEPROM has failed. Have the computer serviced. The EEPROM checksum is not correct (blocks # 0 and 1, or block # 6). The system board should be replaced, and the box serial number needs to be reinstalled. Have the computer serviced. The EEPROM checksum is not correct (blocks # 4 and 5). The system board should be replaced, and the UUID needs to be reinstalled. Have the computer serviced. The computer turned off, because the battery is low. Connect the ac adapter to the computer and charge the battery pack, or replace the battery pack with a fully charged one. The RFID antenna that you installed has been removed. Enter the supervisor password to return your computer to normal operation. The computer has been carried through a security portal gate. Enter the supervisor password to return your computer to the normal operation. The hard disk is not working. Make sure that the hard-disk drive is attached firmly. Run the BIOS Setup Utility (refer to "Starting BIOS Setup Utility" on page 8); then make sure that the hard-disk drive is not disabled in the Startup menu. 18 IBM ThinkPad T20 User's Reference