Lenovo 33472YU Tablet User Manual


 
3. While the computer is off, remove all external devices that are attached to your computer (keyboard,
mouse, printer, scanner, and so on). Repeat step 2. If step 2 is unsuccessful, continue with step 4.
Note: The following steps involve removing static sensitive components from your computer. Ensure
that you are properly grounded and remove all sources of power attached to the computer. If you are
uncomfortable or unsure about removing components please call the Customer Support Center for
assistance.
4. While the computer is off, remove all sources of power and external hardware and reset the system
by inserting a straightened paper clip into the emergency reset hole. Then remove any non-original
memory module added to your computer. If the computer still does not turn on, refer to Chapter 6
“Replacing devices” on page 49
for details of resetting other customer-replaceable components that are
attached to your 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
With a mobile computer, there are increased chances of spilling liquids on the keyboard. Because most
liquids conduct electricity, liquid spilled on the keyboard could create numerous short circuits, potentially
causing irreparable damage to your computer.
If you spill something on your computer:
Attention: Ensure that no liquid creates a short circuit between you and the ac power adapter (if in use).
Although you might lose some data or work by turning off the computer immediately, leaving the computer
on might make your computer unusable.
1. Carefully unplug the ac power adapter immediately.
2. Turn off the computer immediately. The more quickly you stop the current from passing through the
computer the more likely you will reduce damage from short circuits.
3. Wait until you are certain that all the liquid is dry before turning on your computer.
Note: If you want to replace your keyboard, you can purchase a new one.
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 the Security settings, Press Fn+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: Enter ThinkPad Setup to check the Security settings. Press Fn+F10 and then press Enter
to restart the system.
Message: 0188: Invalid RFID Serialization Information Area.
Solution: The EEPROM checksum is not correct (block # 0 and 1). Reset the block # 0 and 1, for example
the box Serial Number, and/or block # 4 and 5, for example the UUID.
88 User Guide