Lenovo ThinkPad Yoga 12 (English) Hardware Maintenance Manual - ThinkPad Yoga - Page 43

Error messages, Beep symptoms, Table 2. Numeric error codes continued, Table 3. Error messages

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Table 2. Numeric error codes (continued) Symptom or error 1802 Unauthorized network card is plugged in-Power off and remove the network card. 2000 ThinkVantage Active Protection sensor diagnostics failed. 2100 Detection error on HDD0 (Main HDD) 2102 Detection error on HDD2 (M.2 SATA) 2110 Read error on HDD0 (Main HDD) 2112 Read error on HDD2 (M.2 SATA) 2200 Machine Type and Serial Number are invalid. 2201 Machine UUID is invalid FRU or action, in sequence 1. Remove network card. 2. Replace the system board. Have the computer serviced. 1. Reseat the hard disk drive. 2. Replace the main hard disk drive. 3. Replace the system board. Have the M.2 SATA device serviced. 1. Reseat the hard disk drive. 2. Replace the main hard disk drive. 3. Replace the system board. The M.2 SATA device is not working. Have the M.2 SATA device serviced. Replace the system board. Replace the system board. Error messages Table 3. Error messages Symptom or error Fan error. Thermal sensing error. This system does not support batteries that are not genuine Lenovo-made or authorized. The system will continue to boot, but may not charge unauthorized batteries. Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and provides no warranties for failures or damage arising out of their use. FRU or action, in sequence 1. Replace the fan. 2. Apply thermal grease. 3. Replace the system board. Replace the system board. Replace the battery. Beep symptoms Table 4. Beep symptoms Symptom or error Four cycles of four short beeps One short beep, pause, three short beeps, pause, three more short beeps, pause, and one short beep Three short beeps, pause, one short beep, pause, one more short beep, pause, and three short beeps Five short beeps FRU or action, in sequence Replace the system board. 1. Replace the memory module. 2. Replace the system board. Remove the device from ExpressCard slot. Replace the system board. Chapter 4. Related service information 37

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Table 2. Numeric error codes (continued)
Symptom or error
FRU or action, in sequence
1802
Unauthorized network card is plugged in—Power off and
remove the network card.
1.
Remove network card.
2. Replace the system board.
2000
ThinkVantage Active Protection sensor diagnostics failed.
Havethecomputerserviced.
2100
Detection error on HDD0 (Main HDD)
1.
Reseat the hard disk drive.
2. Replace the main hard disk drive.
3. Replace the system board.
2102
Detection error on HDD2 (M.2 SATA)
HavetheM.2SATAdeviceserviced.
2110
Read error on HDD0 (Main HDD)
1.
Reseat the hard disk drive.
2. Replace the main hard disk drive.
3. Replace the system board.
2112
Read error on HDD2 (M.2 SATA)
The M.2 SATA device is not working. Have the M.2
SATAdeviceserviced.
2200
Machine Type and Serial Number are invalid.
Replace the system board.
2201
Machine UUID is invalid
Replace the system board.
Error messages
Table 3. Error messages
Symptom or error
FRU or action, in sequence
Fan error.
1.
Replace the fan
.
2. Apply thermal grease.
3. Replace the system board.
Thermal sensing error.
Replace the system board
.
This system does not support batteries that are not
genuine Lenovo-made or authorized. The system will
continue to boot, but may not charge unauthorized
batteries.
Attention:
Lenovo has no responsibility for the
performance or safety of unauthorized batteries, and
provides no warranties for failures or damage arising out
of their use.
Replace the battery
.
Beep symptoms
Table 4. Beep symptoms
Symptom or error
FRU or action, in sequence
Four cycles of four short beeps
Replace the system board.
One short beep, pause, three short beeps, pause, three
more short beeps, pause, and one short beep
1.
Replacethememorymodule
.
2. Replace the system board.
Three short beeps, pause, one short beep, pause, one
more short beep, pause, and three short beeps
Remove the device from ExpressCard slot.
Five short beeps
Replace the system board.
Chapter 4
.
Related service information
37