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Released in 2015, the HP EliteBook 850 G2 is an update to the 850 G1, featuring newer processors and an optional touchscreen. Repair guides and detailed information can be found here.

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Why is my screen not showing and the keyboard keeps going on and off?

My power adapter is overheating and when I turn on the laptop it keeps going on and off,the display screen is not showing

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Hi @sneakydult ,

Does the laptop turn on OK when just using the battery and not having the power adapter connected and switched on?

Have you checked that the DC voltage output from the adapter using a Voltmeter to ensure that it is 18.5V?


I have to use the adapter to turn it on and the voltmeter is 19.5v ...the screen isn't showing but the other part is working


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Chosen Solution

Turn laptop off.

Unplug adapter.

Remove battery.

HP Elitebook 820 G2 Battery Replacement


Plug in adapter and turn on laptop.

Does it work? Yes? Then battery needs replacement.

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