Lenovo ThinkPad Tablet 2 Hardware Maintenance Manual

Also see for ThinkPad Tablet 2: Specification User guide Hardware Maintenance Manual Setup guide User guide

Table 1. Numeric error codes (continued)Symptom or error FRU or action, in sequence0191System Security - Invalid remote change requested.The system configuration change has failed. Confirmthe operation and try again. To clear the error, enter theThinkPad Setup.0199System Security - Security password retry countexceeded.This message is displayed if you enter a wrong supervisorpassword more than three times. Confirm the supervisorpassword and try again. To clear the error, enter theThinkPad Setup.2200Machine Type and Serial Number are invalid.Machine Type and Serial Number are invalid. Have thecomputer serviced.2201Machine UUID is invalid.Machine UUID is invalid. Have the computer serviced.Undetermined problemsIf 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 computer.Verify that the power supply being used at the time of the failure is operating correctly. See “Power systemcheckout” on page 24.1. Turn off the computer.2. Visually check each FRU for damage. Replace any damaged FRU.3. Remove or disconnect all of the following devices:a. Non-ThinkPad devicesb. Devices attached to the docking station or the port replicatorc. Printer, mouse, and other external devicesd. Battery packe. Hard disk drivef. External diskette drive or optical driveg. Memory moduleh. Optical disk in the built-in drivei. PC cards4. Turn on the computer.5. Determine whether the problem has been solved.6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU.7. If the problem remains, replace the following FRUs one at a time (do not replace a nondefective FRU):a. System boardb. LCD assemblyChapter 4. Related service information 33