ThinkPad X1 Carbon, User Manual

Page: 131 / 167

Solution : The EEPROM checksum is not correct (block # 4 and 5). The system board should be replace,
and the UUID needs to be reinstalled. Have the computer serviced.
• Message : 0190: Critical low-battery error
Solution : The computer turned off, because the battery is low. Connect the ac power adapter to the
computer and charge the battery.
• 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.
• Message : 0199: System Security - Security password retry count exceeded.
Solution : This message is displayed if you enter a wrong supervisor password more than three times.
Confirm the supervisor password and try again. To clear the error, enter ThinkPad Setup.
• Message : 1802: Unauthorized network card is plugged in - Power off and remove the network card.
Solution : The wireless network card is not supported on this computer. Remove it.
• Message : 1820: More than one external fingerprint readers are attached.
Solution : Power off and remove all but the reader that you set up within your main operating system.
• Message : 2100: Detection error on SSD0 (M.2)
Solution : The solid-state disk is not working. Have the solid-state disk serviced.
• Message : 2110: Read error on SSD0 (M.2)
Solution : The solid-state disk is not working. Have the solid-state disk serviced.
• Message : 2200: Machine Type and Serial Number are invalid.
Solution : Machine Type and Serial Number are invalid. Have the computer serviced.
• Message : 2201: Machine UUID is invalid.
Solution : Machine UUID is invalid. Have the computer serviced.
• Message : Fan error
Solution : Cooling fan has failed. Shut down the computer immediately and have the computer serviced.
• Message : Thermal sensing error
Solution : The thermal sensor has problem. Shut down the computer immediately and have the computer
serviced.
Errors without messages
• Problem : My screen keeps blanking when I do not want it to.
Solution :
– If your computer is preinstalled with the Windows 7 operating system, you can disable any system
timers, such as the LCD turn-off timer or the blank timer by doing the following:
1. Start Power Manager.
2. Click the Power plan tab, and then select Maximum Performance from the predefined power
plans.
– If your computer is preinstalled with the Windows 8.1 operating system, do the following:
1. Go the desktop and click the battery-status icon in the Windows notification area.
2. Click More power options ➙ Show additional plans ➙ High performance .
• Problem : When I turn on the computer, nothing is displayed on the screen and the computer does not
beep while starting up.
Chapter 10
.
Troubleshooting computer problems
115