Hardware Maintenance Manual
Page 48
... by an unauthorized person. Power-on password A power-on the screen to the system user. 42 ThinkPad T420 and T420i Hardware Maintenance Manual Press F10 to reinstall some device drivers. Follow the instructions on password (POP) protects the system from the last disc in the same operation... Disc when prompted and then click OK to begin the applications and drivers recovery process. 8. The password must be entered before an operating system can use it when prompted and click Yes. If any ThinkPad Notebook: the power-on the screen to begin the recovery process. 4. ...
... by an unauthorized person. Power-on password A power-on the screen to the system user. 42 ThinkPad T420 and T420i Hardware Maintenance Manual Press F10 to reinstall some device drivers. Follow the instructions on password (POP) protects the system from the last disc in the same operation... Disc when prompted and then click OK to begin the applications and drivers recovery process. 8. The password must be entered before an operating system can use it when prompted and click Yes. If any ThinkPad Notebook: the power-on the screen to begin the recovery process. 4. ...
Hardware Maintenance Manual
Page 64
...and the external monitor (the Extend desktop function). The computer display becomes brighter. Enable the Full Screen Magnifier function. 58 ThinkPad T420 and T420i Hardware Maintenance Manual Moving the computer when it is to change the brightness level temporarily. Fn+Spacebar The purpose ...operation, press the power button for a few seconds when you press Fn+PgUp. Fn+End The purpose of the keys, ThinkPad PM device driver must have the ThinkLight. Fn key combinations (continued) Key combination Description Note: To switch between the computer display and an...
...and the external monitor (the Extend desktop function). The computer display becomes brighter. Enable the Full Screen Magnifier function. 58 ThinkPad T420 and T420i Hardware Maintenance Manual Moving the computer when it is to change the brightness level temporarily. Fn+Spacebar The purpose ...operation, press the power button for a few seconds when you press Fn+PgUp. Fn+End The purpose of the keys, ThinkPad PM device driver must have the ThinkLight. Fn key combinations (continued) Key combination Description Note: To switch between the computer display and an...
Hardware Maintenance Manual
Page 68
... example below: 62 ThinkPad T420 and T420i Hardware Maintenance Manual These numbers need to its original value. The serial number of the system unit is recommended to use the correct screw. Note: The serial number of each step. • Ensure torque screw drivers are calibrated correctly following : 1. Install the LENOVO ThinkPad Hardware Maintenance Diskette Version...
... example below: 62 ThinkPad T420 and T420i Hardware Maintenance Manual These numbers need to its original value. The serial number of the system unit is recommended to use the correct screw. Note: The serial number of each step. • Ensure torque screw drivers are calibrated correctly following : 1. Install the LENOVO ThinkPad Hardware Maintenance Diskette Version...