Thanks for the great instructions!

@ Sunny,

Can i replace it with any 2.5″ hard drive available in market ? May be upgrade some specifications ? Currently it is Hitachi 500 GB with 7200 RPM

Yes you can.
You can replace it with a larger capacity 2.5″ 7200RPM drive.
If you really want to speed up the laptop you can install a 2.5″ SSD but they are not cheap.

@ Juan,

my 15Z L1511Z has a blinking orange light and the laptop only works when plugged in is it the battery or something else

You cannot tell if this is battery or motherboard related problem without testing the laptop with another battery.
Have you tried reconnecting the battery? This connection shown in the step 7.

I have problem with my Hard Drive . Can i replace it with any 2.5″ hard drive available in market ? May be upgrade some specifications ? Currently it is Hitachi 500 GB with 7200 RPM

@ Dan,
Unfortunately, this is not the easies model to disassemble.
All your personal data (pictures, music, documents, etc…) is stored on the hard drive. Removing the motherboard will not erase anything from the drive.

After liquid spill the laptop has to be disassembled and all internal components inspected.
Take a look at this tutorial for liquid spill on a Mac.
It’s a different model but will give you the idea.
Do not use it until everything is dry and clean.

If the laptop is gone, you still should be able to access your personal data on the hard drive via USB enclosure.

I’ve knocked over my water bottle yesterday and a small gulp of it spilled all over my keyboard and some of it went down into the keyboard crevices and speaker holes (right side).

The computer was running just fine, then the touchpad started to stop working. [I know. Only after reading the forums I learned that I was suppose to immediately shut down, unplug, and remove the battery]. Then my keyboard suddenly stopped working after a few minutes.

I decided to use the usb keyboard but nothing was typing on the screen. Other buttons besides numbers and letters, like esc caplock space enter, were working fine (only on the usb keyboard). Then the direction buttons became opposite and number 6 key got stuck, like on the inside if that makes any sense.

I waited the next morning to let it dry and see if I dismantle the keyboard, since that”s where most of the fluid went. I was able to remove the battery, dvd drive, and hard drive thanks to this very helpful tutorial. But in order to take out the keyboard, I needed to remove the motherboard? Wouldn’t that erase all the photos and documents I have currently on my laptop?

Is there a way to access the keyboard without having to dismantle the motherboard? Or which part of the motherboard would wipe out all the information if I remove it?

I’m not to good with computers as you may tell, so please explain to me like I’m a 5 year old. I apologize for this very long text. I’m a student and I currently have a class going so I need this fix asap. I would really appreciate all the help I can get!

@ Dralex,
You do not understand your question about the GPU. In this model the GPU is soldered to the motherboard and cannot be removed and replaced.

if you know anyway, futher than cleaning, to foster the cooling system (I don’t know if there are any sort of more powerful compatible fans).

You can try replacing thermal grease. I don’t think “more powerful compatible fans” are available at all.