Error Messages - Lenovo ThinkPad T520 Hardware Maintenance Manual

Table 2. Numeric error codes (continued)
Symptom or error
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 <Esc> to continue. Press <F1> 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.

Error messages

Table 3. Error messages
Symptom or error
Fan error.
Thermal sensing error.
FRU or action, in sequence
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 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
FRU or action, in sequence
1. Fan
2. Thermal grease
3. System board
System board
Chapter 4
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Related service information
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