Lenovo ThinkPad T550 (English) Hardware Maintenance Manual - ThinkPad T550, W5 - Page 42

Numeric error codes, If no numeric code is displayed

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Note: Do the FRU replacement or other actions in the sequence shown in the column headed "FRU or action, in sequence." If replacing a FRU does not solve the problem, put the original part back in the computer. Do not replace a nondefective FRU. This index can also help you determine, during regular servicing, what FRUs are likely to need to be replaced next. A numeric error is displayed for each error detected in POST or system operation. In the displays, n can be any number. If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not described there, go to "Intermittent problems" on page 38. Note: For a device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for that device. Numeric error codes Table 1. Numeric error codes Symptom or error FRU or action, in sequence 0177 Bad SVP data, stop POST task-The checksum of the supervisor password in the EEPROM is not correct. System board 0183 Bad CRC of Security Settings in EFI Variable. Enter the ThinkPad Setup program. 1. Run the ThinkPad Setup program, and then save current setting by pressing F10. 2. System board 0187 EAIA data access error-The access to EEPROM is failed. System board 0188 Invalid RFID Serialization Information Area. System board 0189 Invalid RFID configuration information area-The EEPROM checksum is not correct. System board 0190 Critical low-battery error 1. Charge the battery. 2. Battery 0191 System Security-Invalid Remote Change requested. 1. Run the ThinkPad Setup program, and then save current setting by pressing F10. 2. System board 0199 System Security- Security password retry count exceeded. 1. Run the ThinkPad Setup program, and then save the current setting by pressing F10. 2. System board 0270 Real Time Clock Error. System Real Time Clock is not functional. Have the computer serviced. 0271 Check Date and Time settings.. Neither the date nor the time is set in the computer. Enter ThinkPad Setup and set the date and time. 1802 Unauthorized network card is plugged in-Turn off and remove the network card. 1. Remove wireless network card. 2. 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. 36 Hardware Maintenance Manual

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Note:
Do the FRU replacement or other actions in the sequence shown in the column headed “FRU or
action, in sequence.” If replacing a FRU does not solve the problem, put the original part back in the
computer. Do not replace a nondefective FRU.
This index can also help you determine, during regular servicing, what FRUs are likely to need to be
replaced next.
A numeric error is displayed for each error detected in POST or system operation. In the displays,
n
can
be any number.
If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not
described there, go to “Intermittent problems” on page 38.
Note:
For a device not supported by diagnostic codes in the ThinkPad notebook computers, see the
manual for that device.
Numeric error codes
Table 1. Numeric error codes
Symptom or error
FRU or action, in sequence
0177
Bad SVP data, stop POST task—The checksum of the
supervisor password in the EEPROM is not correct.
System board
0183
Bad CRC of Security Settings in EFI Variable. Enter the
ThinkPad Setup program.
1.
RuntheThinkPadSetupprogram,andthensave
currentsettingbypressingF10.
2. System board
0187
EAIA data access error—The access to EEPROM is failed.
System board
0188
Invalid RFID Serialization Information Area.
System board
0189
Invalid RFID configuration information area—The
EEPROM checksum is not correct.
System board
0190
Critical low-battery error
1.
Charge the battery.
2. Battery
0191
System Security—Invalid Remote Change requested.
1.
RuntheThinkPadSetupprogram,andthensave
currentsettingbypressingF10.
2. System board
0199
System Security— Security password retry count
exceeded.
1.
RuntheThinkPadSetupprogram,andthensave
thecurrentsettingbypressingF10.
2. System board
0270
Real Time Clock Error.
System Real Time Clock is not functional. Have
the computer serviced.
0271
Check Date and Time settings..
Neither the date nor the time is set in the computer.
Enter ThinkPad Setup and set the date and time.
1802
Unauthorized network card is plugged in—Turn off and
remove the network card.
1.
Removewirelessnetworkcard.
2. 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.
Removeallbutthereaderthatyousetupforthe
authentication.
36
Hardware Maintenance Manual