Lenovo ThinkPad T420 Hardware Maintenance Manual - Page 54

Remove Mini PCI network card., Reseat the Mini SATA device. - hard drive

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Table 2. Numeric error codes (continued) Symptom or error 0191 System Security-Invalid Remote Change requested. 0199 System Security- Security password retry count exceeded. 0251 System CMOS checksum bad- Default configuration used. 0271 Real-time clock error. Check date and time settings. 1802 Unauthorized network card is plugged in-Turn off and remove the miniPCI network card. 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. 2000 Hard Drive Active Protection sensor diagnostics failed.Press to continue.Press to enter SETUP 2100 Detection error on HDD0 (Main HDD) 2101 Detection error on HDD1 (Ultrabay HDD) 2102 Detection error on HDD2 (Mini SATA) 2110 Read error on HDD0 (Main HDD) 2111 Read error on HDD1 (Ultrabay HDD) 2112 Read error on HDD2 (Mini SATA) 2200 Machine Type and Serial Number are invalid. 2201 Machine UUID is invalid FRU or action, in sequence 1. Run the ThinkPad Setup program, and then save current setting by pressing F10. 2. System board. 1. Run the ThinkPad Setup program, and then save the current setting by pressing F10. 2. System board. 1. Charge the backup battery for more than 8 hours by connecting the ac power adapter. 2. Replace the backup battery and run the ThinkPad setup program to reset the time and date. Run the ThinkPad Setup program to reset the time and date. 1. Remove Mini PCI network card. 2. System board. Remove all but the reader that you set up for the authentication. 1. Undock docking station or port replicator if it is attached to the ThinkPad Notebook. 2. Place the ThinkPad Notebook on a horizontal surface. Do not apply any physical shock to the computer. 3. Run Diagnostics ➙ ThinkPad Devices ➙ HDD Active Protection Test. 1. Reseat the hard disk drive. 2. Main hard disk drive. 3. System board. 1. Reseat the hard disk drive. 2. Ultrabay hard disk drive. 3. System board. 1. Reseat the Mini SATA device. 2. Mini SATA device. 3. System board. 1. Reseat the hard disk drive. 2. Main hard disk drive. 3. System board. 1. Reseat the hard disk drive. 2. Ultrabay hard disk drive. 3. System board. 1. Reseat the Mini SATA device. 2. Mini SATA device. 3. System board. System board. System board. 48 ThinkPad T420 and T420i Hardware Maintenance Manual

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Table 2. Numeric error codes (continued)
Symptom or error
FRU or action, in sequence
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.
0251
System CMOS checksum bad— Default configuration
used.
1.
Charge the backup battery for more than 8 hours
by connecting the ac power adapter.
2. Replace the backup battery and run the ThinkPad
setup program to reset the time and date.
0271
Real-time clock error. Check date and time settings.
Run the ThinkPad Setup program to reset the time
and date.
1802
Unauthorized network card is plugged in—Turn off and
remove the miniPCI network card.
1.
Remove Mini PCI 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.
2000
Hard Drive Active Protection sensor diagnostics
failed.Press <Esc> to continue.Press <F1> to enter
SETUP
1. Undock docking station or port replicator if it is
attached to the ThinkPad Notebook.
2. Place the ThinkPad Notebook on a horizontal surface.
Do not apply any physical shock to the computer.
3. Run
Diagnostics
➙
ThinkPad Devices
➙
HDD
Active Protection Test
.
2100
Detection error on HDD0 (Main HDD)
1.
Reseat the hard disk drive.
2. Main hard disk drive.
3. System board.
2101
Detection error on HDD1 (Ultrabay HDD)
1.
Reseat the hard disk drive.
2. Ultrabay hard disk drive.
3. System board.
2102
Detection error on HDD2 (Mini SATA)
1.
Reseat the Mini SATA device.
2. Mini SATA device.
3. System board.
2110
Read error on HDD0 (Main HDD)
1.
Reseat the hard disk drive.
2. Main hard disk drive.
3. System board.
2111
Read error on HDD1 (Ultrabay HDD)
1.
Reseat the hard disk drive.
2. Ultrabay hard disk drive.
3. System board.
2112
Read error on HDD2 (Mini SATA)
1.
Reseat the Mini SATA device.
2. Mini SATA device.
3. System board.
2200
Machine Type and Serial Number are invalid.
System board.
2201
Machine UUID is invalid
System board.
48
ThinkPad T420 and T420i Hardware Maintenance Manual