In this HP ENVY 17t-K200 disassembly guide I explain how to open up the laptop body and access all internal components. There is a good chance this guide will fit some other models in the HP ENVY 17 Notebook PC line.
I’m taking it apart in order to access the CMOS battery which is mounted on the bottom side of the motherboard.
This HP laptop stopped booting without any reason. It was turning on but the Caps lock LED blinked twice every 3 seconds and nothing appeared on the screen. I found that removing the CMOS battery might resolve the problem and it did help.
Start the disassembly process with removing the battery.
Unlock the battery first by pushing the left tab to the left (red arrow).
Lift up the battery by pushing the right tab to the left (green arrow).
Remove two screws securing each hinge cover.
One of the screws hidden under the rubber foot.
Pry up the right hinge cover and remove it. Do the same with the left cover.
Remove two screws located under the right hinge cover. The silver screw (color-coded in yellow) is shorter than the other screw (red). Make sure to install them back correctly when putting the laptop back together.
Remove two screws located under the left hinge cover.
Remove all screws from the bottom of the laptop. All these screws are the same size.
Pull the optical drive out and remove two more screws hidden under the drive.
Now you can start separating the palmrest assembly from the base. I’m using a plastic case opening tool for that. Move the tool along the side and pry the palmrest up to unlock hidden latches.
Continue separating the palmrest assembly with your fingers. There are many hidden latches. Wiggle the palmrest until it separates from the base.
I found that moving the palmrest assembly away from the display helps to release latches on the back.
Before you remove the palmrest completely, you’ll have to disconnect for flat cables from the motherboard. These are: power button cable, finger scanner cable, keyboard cable and trackpad cable.
Here’s how to release the cable. First, unlock the connector by lifting up the locking tab (red arrow). After that pull the cable out (yellow arrow).
Here’s the back side of the palmrest assembly. Here you can access and remove the power button board and trackpad.
The keyboard is permanently riveted to the case and cannot be easily replaced.
Now we are going to separate the display assembly from the base. We’ll have to remove screws from the display hinges and disconnect display cable (color-coded in green) and wireless antenna cables (color-coded in yellow).
There are four screws securing the left hinge to the base. One of them (silver) is shorter than three other screws.
There are three screws securing the right hinge to the base.
Here’s how to disconnect the display cable from the motherboard. Unlock the connector and pull the cable out.
Carefully lift up wireless antenna cables to unsnap them from the wireless card.
Separate the display assembly and remove it from the base.
Remove two screws from the USB audio board and disconnect the flat cable from the motherboard. Lift up and remove the USB audio board with the cable attached to it.
Disconnect the hard drive cable from the motherboard.
Lift up and remove the hard drive with both mounting brackets attached to its sides.
In HP ENVY 17t-K200 laptop the DC power jack mounted under the left hinge.
When the display assembly removed, you can lift up the DC jack from the base and unplug it from the motherboard.
Remove one screw securing the wireless card.
Pull the wireless card out.
Now we can start removing the motherboard.
Disconnect the speaker cable (red), battery connector board cable (orange), subwoofer cable (yellow) and optical drive cable (green).
Remove seven screws securing the motherboard to the base.
Carefully separate the motherboard from the base and remove it.
On the hidden side of the motherboard you can access both memory modules, cooling fan and CMOS battery. It’s a regular CR2032 3V lithium coin battery.
Remove one screw securing the cooling fan and disconnect fan cable from the motherboard.
Now you can remove the fan.
Fixing caps lock blinking twice and blank screen
As I mentioned earlier, this HP ENVY 17t-K200 laptop stopped booting properly showing a blank screen and caps lock blinking twice. In order to fix this problem I had to remove the CMOS battery and turn on the logic board from the AC adapter. Thank you to HP forums for the solution.
After re-assembly, the laptop turned on properly with video on the screen.
Here’s the official HP Maintenance and Service Guide for following models:
HP ENVY 17 Notebook PC
HP ENVY 15 Notebook PC
HP ENVY m7 Notebook PC
In the service manual you can find complete step by step disassembly instructions and list of parts used in these computers.