User Guide - Lenovo B5400, M5400, M5400 Touch
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...the screen. Press the power button. - Press Fn+F2 to make sure that : - The computer power is installed correctly. - Touch the touchpad. - The display device driver is on the screen, have the computer serviced. 24 correctly? Press the power button again for the LCD screen has... to resume from the screen saver or to the computer, and the power cord is unreadable or distorted." If the problem persists, follow the solution in the next problem "The screen is plugged into a working electrical outlet. - Incorrect characters appear • Is the operating system or...
...the screen. Press the power button. - Press Fn+F2 to make sure that : - The computer power is installed correctly. - Touch the touchpad. - The display device driver is on the screen, have the computer serviced. 24 correctly? Press the power button again for the LCD screen has... to resume from the screen saver or to the computer, and the power cord is unreadable or distorted." If the problem persists, follow the solution in the next problem "The screen is plugged into a working electrical outlet. - Incorrect characters appear • Is the operating system or...