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Mjoslin Honor Student
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HP Probook 450 G4 wont power on even when Plugged in

HP Probook 450 G4

HELP!! One of my coworkers is reporting that his HP Probook 450 G4 is no longer powering on. Even while plugged in the power will not come on. The power button also feels like it is not engaging. (There is no clicking) What could it likely be? The battery or the Power button? I know how to replace the battery.. but not the power button.. computer is currently taken apart to remove battery. 

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Message 2 of 7
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HP Probook 450 G4 wont power on even when Plugged in

If you plug in the adapter without the battery does it power on? 

Removal/Replace videos are here:

http://h20574.www2.hp.com/results.htm?SID=5224999&MEID=C989BFC0-04C0-4AA5-849F-80E221323919

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Mjoslin Honor Student
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HP Probook 450 G4 wont power on even when Plugged in

I'm not sure, as the whole computer is apart to remove the battery. 

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Provost Provost
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HP Probook 450 G4 wont power on even when Plugged in

I thought the Probook has removeable battery- slide latch to release?

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Mjoslin Honor Student
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HP Probook 450 G4 wont power on even when Plugged in

Not the G4 version, you have to open the whole computer to remove it. 

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Provost Provost
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HP Probook 450 G4 wont power on even when Plugged in

 

Maintenance and Service Manual shows power button replacement:

http://h10032.www1.hp.com/ctg/Manual/c05270979

 

Or-video here:

http://h20574.www2.hp.com/results.htm?SID=5224999&MEID=C989BFC0-04C0-4AA5-849F-80E221323919

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FirstMetroSecIT Student
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HP Probook 450 G4 wont power on even when Plugged in

Battry couldve drained due to hibernation. Plugin the power adapter, then press the power button for 20 seconds. White light will be visible for a second from the adapter port, release the power button. Now press the power button to turn it on.

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