Lenovo K23 Laptop Lenovo K23 User Guide V1.0 - Page 58
Troubleshooting, Keyboard problems, Standby or hibernation problems
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Chapter 5. Troubleshooting Keyboard problems A number appears when you enter a letter. • The numeric lock function is on. To disable it, press Fn + Insert. Standby or hibernation problems The computer enters standby mode unexpectedly. • If the processor overheats, the computer automatically enters standby mode to allow the computer to cool and to protect the processor and other internal components. Check the settings for standby mode. The computer enters standby mode immediately after Power-on self-test (POST). • Make sure that: - The battery is charged. - The operating temperature is within the acceptable range. See "Appendix B. Use, and care Information" on page 64. Note: If the battery is charged and the temperature is within range, have the computer serviced. The critical low-battery error • The battery power is getting low. Connect the AC message appears, and the adapter to the computer, or replace the battery with computer immediately turns a fully charged one. off. 44