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First released in September 2013, the T440s is a lightweight, durable 14" business notebook that shipped with 4th generation Intel processors.

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Why is my laptop not coming up

it switched off by itself and never came up after that..

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Are there any lights or sounds when you turn the computer on? If it is plugged into the ac adapter, is there a light showing that it is charging?

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Look at the power cord and make sure that the laptop has power. Sometimes the device dies and either the lightning panel was damage or the battery was damaged. Look upon that and if it turns on and does not show anything on the screen try plugging to the HDMI to another device in case it is just the screen.

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Check if the light on charger stays on when its plugged into the system.If yes,disconnect the charger,remove the battery,press and hold down the power button for 30 seconds.Reconnect the battery and charger,turn on the system and see if there is any change. For better and effective solution please watch troubleshooting instructions in Lenovo ThinkPad T440 Manual.

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If it appears like a dud, undo bottom cover, remove cmos and internal battery connect back, it should be working again.

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mustapham.sodiq sarà eternamente grato.
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