Comments on: How to disassemble HP ProBook 4540s

By: Paul Dow

Paul Dow — Sun, 26 Feb 2023 03:17:02 +0000

Very good instructions. Good photos. I found thereâ€s one more screw that needs to be removed to get the top cover off. In step 17, thereâ€s one more at the right of the memory sockets.

By: nick

nick — Tue, 26 May 2020 05:10:51 +0000

I have a HP ProBook 4540s with a continuously blinking power led, even though the power cord is not attached but with the battery in place, that will not power on. Any suggestions on how to diagnose the cause of the blinking led and/or the unit not powering up would be greatly appreciated.
P.S. Thank you for your instructions along with annotated images on how to open up the laptop. They were very clear and easy to follow.

By: Muhammad Akram Ch.

Muhammad Akram Ch. — Fri, 22 May 2020 18:22:49 +0000

My Laptop Screen becomes black some time white cables coming from motherboard to screen on both left and right side . I found some cable from Motherboard to Screen in left side is intermittent. when I move it with some visiting Card it becomes normal I am an electron sub Engineer, retired from Air Force how i can reach to these cables to repair it. If some one can help me I will be thankful to him.

By: IML Tech

IML Tech — Fri, 06 Mar 2020 13:04:53 +0000

In reply to SAMT. I don't remember this model off the top of my head but I believe you can replace the touchpad without replacing the entire top case. First, you'll have to remove the top case. Second, remove the metal bracket with the keys. After that you should be able to replace the touchpad.

By: SAMT

SAMT — Fri, 06 Mar 2020 02:31:40 +0000

Hi,

Can we replace the touchpad only without replacing the top cover?

By: Vladimir

Vladimir — Sun, 08 Sep 2019 16:53:12 +0000

In reply to AD Paye. Muchas gracias el mejor tutorial que he visto

By: earl

earl — Tue, 13 Aug 2019 16:21:45 +0000

extremely helpful!

By: Sid

Sid — Sun, 17 Jan 2016 12:36:12 +0000

Thank you for the perfect disassembly instructions and photos. So helpful.
Maybe a note can be added to step 14: If you did not removed keyboard in the previous step, remove also the 3rd screw in the middle of the cover.

By: ramy

ramy — Tue, 29 Dec 2015 17:55:37 +0000

I have a probook 4440s with a broken screen, how do i take out the screen after taking out the keyboard and cover???

By: milad tara

milad tara — Sat, 31 Oct 2015 13:36:41 +0000

thanks a lot, I can’t believe that there is another such an excellent
tutorial in the internet.