I attempted to replace the display of this laptop as about 1/3 of the display wasn't working. It would still connect to an external display fine. After attempting the screen replacement the new screen won't power on nor will the laptop output video via HDMI.
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@Vivian Nelson
Yes.
There's always power on the motherboard somewhere even if the laptop is turned off.
The power button is not a power isolating button. Its function is to signal the intentions of the user e.g. turn on, turn off, wake etc. It's the same with mobile phones.
Think of the device as being in an extremely low power state when it is turned off, rather than it is disconnected from any power. You need to disconnect the battery as soon as it can be accessed before doing any further work in the device
It's strange that there's no display as the laptop has 2 GPUs, integrated Intel (in with CPU) and discrete Nvidia (separate GPU on the motherboard) so I'm wondering if it is starting or booting at all. (not the same thing)
Does the laptop turn on in as much as the fan starts, (starting) and then the drive activity LED flashes on the laptop indicating it is booting into the OS etc?
The Intel GPU should work until the OS is loaded and then depending on your selected preferences it depends which one you have chosen so you should get the Asus splash screen on startup if it passes POST (power on self test) although you won't be able to use an external monitor to see it as you can't connect to an external monitor until the OS is loaded.
If the Intel GPU was affected so would be the CPU so if it doesn't start it may be a power problem on the motherboard
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I does turn on and I can even sign in to Windows using my pin and hear Windows notifications, just no display either internal or external.
@Vivian Nelson
When it has booted into Windows, try shining a flashlight at an angle close to the laptop display and check if any images can be seen.
They will be very faint if they are there so trying this in a darkened room may help to see them
If you can see images then there's a backlight problem with the display. This could be on the motherboard, the video cable or the display.
Since you may not have disconnected the battery from the motherboard before replacing the display hopefully the worst that may have happened is that you blew the backlight power fuse on the motherboard.
This doesn't explain why the external monitor doesn't work either though. You are pressing Fn + F9 (both together) to toggle between the displays i.e. laptop only, external only or both on together?
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Hi,
Did you disconnect the battery before attempting to replace the screen?
par jayeff
Tbh I can't remember since it was a few weeks ago. Worried about if I haven't. Is it possible the GPU or something could be fried because if it wasn't disconnected?
par Vivian Nelson