Lenovo 20RK, Hardware Maintenance Manual

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Numeric error codes
Message
Solution
0190: Critical low-battery error
The computer turned off because the battery power is low. Connect the ac power
adapter to the computer and charge the batteries.
0191: System Security - Invalid
remote change requested
The system configuration change has failed. Confirm the operation and try again.
0199: System Security - Security
password retry count exceeded. This message is displayed when you enter a wrong supervisor password more
than three times. Confirm the supervisor password and try again.
0271: Check Date and Time
settings.
The date or the time is not set in the computer. Enter the UEFI BIOS menu and set
the date and time.
210x/211x: Detection/Read error
on HDDx/SSDx
The storage drive is not working. Reinstall the storage drive. If the problem still
exists, replace the storage drive.
Error: The non-volatile system
UEFI variable storage is nearly
full.
Note:
This error indicates that the operating system or programs cannot create, modify,
or delete data in the non-volatile system UEFI variable storage due to insufficient
storage space after POST.
The non-volatile system UEFI variable storage is used by the UEFI BIOS and by
the operating system or programs. This error occurs when the operating system
or programs store large amounts of data in the variable storage. All data needed
for POST, such as UEFI BIOS setup settings, chipset, or platform configuration
data, are stored in a separate UEFI variable storage.
Press F1 after the error message is displayed to enter the UEFI BIOS menu. A
dialog asks for confirmation to clean up the storage. If you select “Yes”, all data
that were created by the operating system or programs will be deleted except
global variables defined by the Unified Extensible Firmware Interface
Specification. If you select “No”, all data will be kept, but the operating system or
programs will not be able to create, modify, or delete data in the storage.
If this error happens at a service center, Lenovo authorized service personnel will
clean up the non-volatile system UEFI variable storage using the preceding
solution.
Fan error. Press ESC to startup
with limited performance.
The thermal fan might not work correctly. After the error message is displayed,
press ESC within five seconds to start up the computer with limited performance.
Otherwise, the computer will shut down immediately. If the problem still exists
when you starts up next time, have your computer serviced.
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.
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Hardware Maintenance Manual