Numeric Error Codes; Intermittent Problems; Undetermined Problems - Lenovo ThinkPad 10 Hardware Maintenance Manual

Note: For a device not supported by diagnostic codes in the ThinkPad tablet computers, see the manual for
that device.

Numeric error codes

Table 2. Numeric error codes
Symptom or error
0183
Bad CRC of Security Settings in EFI Variable. Enter
ThinkPad Tablet Setup.
0187
EAIA data access error.
0188
Invalid RFID Serialization Information Area.
0189
Invalid RFID configuration information area.
0190
Critical low-battery error.
2200
Machine Type and Serial Number are invalid.
2201
Machine UUID is invalid.
2301
Built-in Battery needs to recharge.

Intermittent problems

Intermittent system hang problems can be due to a variety of causes that have nothing to do with a hardware
defect, such as cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be
considered only when a problem recurs.
When analyzing an intermittent problem, do the following:
1. Run the diagnostic test for the system board in loop mode at least 10 times.
2. If no error is detected, do not replace any FRUs.
3. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no
more errors exist.

Undetermined problems

If the diagnostic tests did not identify the adapter or device that has failed, if wrong devices are installed,
or if the system simply is not operating, follow these procedures to isolate the failing FRU (do not isolate
FRUs that have no defects).
Verify that all attached devices are supported by the tablet.
Verify that the power supply being used at the time of the failure is operating correctly. See "Power system
checkout" on page 26.
FRU or action, in sequence
Checksum of the Security settings in the EFI Variable
is not correct. Enter ThinkPad Tablet Setup to check
Security settings, and restart the system. If you still have
a problem, have the tablet serviced.
The access to Electrically Erasable Programmable
Read-Only Memory (EEPROM) is failed. Have the tablet
serviced.
The EEPROM checksum is not correct (block # 0 and 1).
The system board should be replaced, and the box serial
number needs to be reinstalled. Have the tablet serviced.
The EEPROM checksum is not correct (block # 4 and 5).
The system board should be replaced, and the universally
unique identifier (UUID) should be reinstalled. Have the
tablet serviced.
The tablet turned off, because the battery is low. Connect
the ac adapter to the tablet and charge the battery.
Machine Type and Serial Number are invalid. Have the
tablet serviced.
Machine UUID is invalid. Have the tablet serviced.
Recharge the built-in battery.
Chapter 4
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Related service information
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