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Lenovo ThinkPad A275 User Manual page 89

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1. Remove all sources of power from the computer (ac power adapter and the removable battery) and reset
the system by inserting a straightened paper clip into the emergency-reset hole.
2. Reattach the ac power adapter and restart the computer. If the computer does not turn back on,
continue with step 3.
3. While the computer is turned off, remove all sources of power from the computer and remove all external
devices that are attached to your computer (keyboard, mouse, printer, scanner, and so on). Reattach the
ac power adapter and restart the computer. If the computer still does not start up, call the Customer
Support Center and a Customer Support Specialist will assist you.
Spills on the keyboard
Problem: I spill something on the computer.
Solution: Because most liquids conduct electricity, liquid spilled on the keyboard could create numerous
short circuits and damage your computer. To solve the problem, do the following:
1. Ensure that no liquid creates a short circuit between you and the ac power adapter (if in use).
2. Carefully unplug the ac power adapter immediately.
3. Turn off the computer immediately. If the computer does not turn off, remove the removable battery. The
more quickly you stop the current from passing through the computer the more likely you will reduce
damage from short circuits.
Attention: Although you might lose some data or work by turning off the computer immediately, leaving
the computer on might make your computer unusable.
4. Wait until you are certain that all the liquid is dry before turning on your computer.
Error messages
• Message: 0177: Bad SVP data, stop POST task.
Solution: Checksum of the supervisor password in the EEPROM is not correct. The system board should
be replaced. Have the computer serviced.
• Message: 0183: Bad CRC of Security Settings in EFI Variable. Enter ThinkPad Setup.
Solution: Checksum of the Security settings in the EFI Variable is not correct. Enter ThinkPad Setup to
check security settings, press F10, and then press Enter to restart the system. If you still have a problem,
have the computer serviced.
• Message: 0187: EAIA data access error
Solution: The access to EEPROM is failed. Have the computer serviced.
• Message: 0188: Invalid RFID Serialization Information Area
Solution: The EEPROM checksum is not correct (block # 0 and 1). The system board should be replaced,
and the box serial number must be reinstalled. Have the computer serviced.
• Message: 0189: Invalid RFID configuration information area
Solution: The EEPROM checksum is not correct (block # 4 and 5). The system board should be replaced,
and the universally unique identifier (UUID) must be reinstalled. Have the computer serviced.
• Message: 0190: Critical low-battery error
Solution: The computer turned off because the battery power is low. Connect the ac power adapter to the
computer and charge the batteries.
• Message: 0191: System Security - Invalid remote change requested
Solution: The system configuration change has failed. Confirm the operation and try again. To clear the
error, enter ThinkPad Setup.
.
Chapter 6
Troubleshooting computer problems
71

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