Lenovo 20N4, Hardware Maintenance Manual

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Numeric error codes
Table 2. Numeric error codes
Symptom or error (beeps, if any) FRU or action, in sequence
0177
Bad SVP data, stop POST task—The checksum of the
supervisor password in the EEPROM is not correct.
Replace the system board.
0183
Bad CRC of Security Settings in EFI Variable. Enter the
ThinkPad Setup program. – The checksum of the Security
settings in the EFI Variable is not correct.
1. Run the ThinkPad Setup program. The settings
will be corrected automatically. Then save the
current settings by pressing F10.
2. Replace the system board.
0187
EAIA data access error - The access to EEPROM is failed.
Replace the system board.
0188
Invalid RFID Serialization Information Area.
Replace the system board.
0189
Invalid RFID configuration information area - The
EEPROM checksum is not correct.
Replace the system board.
0190
Critical low-battery error
1. Charge the battery.
2. Replace the battery.
0191
System Security - Invalid Remote Change requested.
1. Run the ThinkPad Setup program, and then save
current setting by pressing F10.
2. Replace the system board.
0199
System Security - Security password retry count
exceeded.
1. Run the ThinkPad Setup program. The retry count
will be reset. Then save the current settings by
pressing F10.
2. Replace the system board.
0251
System CMOS checksum bad - Default configuration
used.
1. Charge the coin-cell battery for more than 8 hours
by connecting the ac power adapter.
2. Replace the coin-cell battery and run the ThinkPad
Setup program to reset the time and date.
0271
Real-Time Clock Error. Check Date and Time settings.
1. Run ThinkPad Setup to reset the time and date
2. Replace the coin-cell battery and run the ThinkPad
Setup program to reset the time and date.
1802
Unauthorized network card is plugged in - Turn off and
remove the network card.
1. Remove the network card.
2. Replace the system board.
1820
More than one external fingerprint reader is attached.
Power off and remove all but the reader that you set up
within your main operating system.
Remove all but the reader that you set up for the
authentication
2000
ThinkVantage Active Protection sensor diagnostics failed.
Have the computer serviced.
2100
Detection error on Main HDD (HDD0)
1. Reseat the M.2 solid-state drive.
2. Replace the M.2 solid-state drive.
3. Replace the system board.
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T590 and P53s Hardware Maintenance Manual