HP Pavilion 15 black screen upon powering up [Solved/Closed]

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Ambucias
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Hello. So the story is the following. My keyboard was damaged and I took my laptop to a service. The keyboard was replaced succesfully but some keys were were too much inside. So I removed the backend of my laptop and noticed that my (internal unremovable) battery was in a wrong position. I took the screws out, placed thr battery in the right place, put the screws back on. Now the keyboard was looking good, keys weren't sunk in anymore. But when I pressed the power up button, I only got a black screen. Nothing pops up, not even the logo of the computer or the button menu. I can hear the fans running and the power button light is on, but I get no response whatsoever from the screen. Does anyone have any idea what happened?


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I have no idea of what happened, but to troubleshoot the issue, try an external monitor and see if you get a display.
Anttarus
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Yea, I'll do that today, as soon as i get an HDMi cable on my hands. But I don't think the video chipset it's at fault cause after the black screen incident happened, I opened the backend of the laptop again and I accidently touched a fan and when I pressed the power button, a message appeared on the screen saying "the system can't boot because one of the fans are not working properly". Then I took my hand away from the fan and the message dissapered and the screen went black again.
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I tried connecting it with a hdmi cable to a tv and looks like the video card it's fine, it displays right on the tv. Could it be that the guy I went to replace my keyboard to didn't connect all the cables right? He did a poor job with the keyboard too.
Ambucias
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You are correct...back to the repair shop.

Cheers