Hi and welcome to 365 Laptop Repair. This is a tutorial on how to do a ASUS B400A Xh52 Teardown. This teardown consists of disassembly with on screen instructions and a quick reassembly. The tutorial, or parts of it, will help you prepare your laptop for repairs such as DC jack repair, fan replacement, hard drive replacement and video chip repair. There are a few things you are going to need to complete this repair. In this tutorial we will be using tweezers, a prying tool, a T5 Torx screw driver, and optionally a power Philips screwdriver.
Check out our video tutorial for this laptop below!
If you don’t have the required tools or don’t want to do the repair yourself, send it to us and one of our experienced technicians will fix it for you! Visit our laptop repair form or repair estimate page for more information. If you would like to see a video tutorial on this repair, it is below.
- Phillips head screwdriver (or power screwdriver)
- T5 Torx screw driver
- Prying tool
First shut down your laptop. After that close the display panel and also disconnect all the cables, such as chargers, from the laptop. Also remove any headphones that could be connected to it. Place it face down on a flat surface and make sure that the edge of the laptop that has the stickers is facing you.
Start by removing the screws on the bottom. There are 10 screws (circled in blue in the video) and you will need to remove them all. These screws placed on the bottom of the laptop hold the case together. You will need to use a T5 Torx screw driver to remove these screws.
Make sure that you keep the screws in a secured place so that they are not lost and you can access them once you are done with repairing the laptop. After removing the screws, slowly remove the back panel of the laptop and put it aside.
Disconnecting all the cables
The next step is to disconnect the battery connector using tweezers. You should also remove the black Keyboard ribbon cable with the help of the tweezers. This cable has multicolor wires.
Now, disconnect the white fingerprint scanner ribbon cable. After that you should disconnect the cable for the front lights. Make sure to remove these cables gently as they very delicate and can be easily damaged by exertion of excessive force.
The next step is to disconnect the two ribbon cables for the track pad and buttons, as shown in the video. It should also be removed with the help of tweezers.
Gently disconnect the LCD screen connector with your fingers.
Disconnect the left fan cable and then the right fan cables with the tweezers.
The next step is to disconnect the black wires leading to the Wi-Fi card. Then, disconnect the Camera cable.
Disconnecting the Battery
In order to disconnect the battery, you will need to remove the 7 screws around the battery (as shown in the video, the screws are marked in blue) to remove the battery. Gently remove the battery and put it aside.
Disconnect the 2 ribbon cables that connect the I/O board on the right.
Disconnecting the Hard Drive
In order to disconnect the hard drive, you will need to remove the 4 screws around the drive (marked in blue in the video).
Disconnecting the Heat Sink and Fans
The next step is to disconnect the heat sink and fans by removing the 9 screws around them (marked in blue in the video).
Caution – removing the screw at the red arrow as it will void the warranty of your laptop.
After disconnecting the heat sink and fan, you should disconnect the Wi-Fi card by removing the screw marked in blue in the video.
Disconnecting the Motherboard
To disconnect the motherboard, you need to remove all the screws around it. Remove the 7 screws around the motherboard, which has been marked in blue in the video.
After removing these screws, you will need to remove the screws for taking out the ethernet jack cover. Once you remove the ethernet jack cover, you will be able to disconnect and remove the motherboard.
The next step in this process is to remove the 2 ribbon cables on the right that connect the I/O board.
Disconnecting the Speaker
Disconnecting the speaker and the CMOS battery connector will be your next step. You can do so by using the tweezers. After that, remove the 5 screws marked in blue in the video to take out the board. You will then remove the screw at the top-center (marked in blue in the video) to disconnect and remove the speaker.
The speakers are attached with adhesive. Hence, you should use the tweezers to gently pull them out without causing any damage to them.
Disconnecting the LCD assembly
Remove the screws at the two bottom corners of the panel (as shown in the video, screws marked in blue) to remove the LCD assembly from the case. Gently bend the case away from the screen to loosen the brackets.
With the 6 screen hinge screws removed and the hinges loosened, you can remove the screen assembly from the rest of the laptop.
That complete the teardown for this laptop, next we are going to reassemble it.
After you are done with the teardown, you can clean the parts of the laptop and replace any bad parts with new ones.
Start the laptop reassembly by re-attaching the LCD panel back to the case. Replace the screws at the two bottom corners of the panel to reattach the LCD assembly to the case.
After connecting the LCD assembly, you should connect the speakers. First, replace the screw at the top-center to reconnect the speaker. After gently attaching the speakers, replace the 5 screws and then connect the CMOS battery connector.
The next step is to reconnect the motherboard. Put it back into place and replace the 7 screws around the motherboard. Then replace the ethernet jack cover and its screws. Replace the Wi-Fi card and after that, you can reconnect the heat sink and fans by replacing the 9 screws around them.
Now, you will need to reconnect the hard drive, by replacing the 4 screws around the drive.
Next, you should reconnect the 2 ribbon cables that connect the I/O board on the right. The next step will be to reconnect the battery by replacing the 7 screws around the battery.
Reconnecting the Cables
After you are done with reconnecting the hardware components, you will need to reconnect all the cables. Reconnect the Camera cable and then the black wires leading to the Wi-Fi card. Reconnect the left Fan cable and then the right fan cable. Now, reconnect the LCD screen connector.
The next step is to reconnect the two ribbon cables for the track pad and buttons, and then the white fingerprint scanner ribbon cable. Reconnect the Keyboard ribbon cable and then the battery connector. Finally, you should reattach the case by replacing the 10 screws that hold it.
ASUS B400A Xh52 Teardown Complete
With the completion of this tutorial, you now know how to take apart and reassemble your ASUS B400A Xh52 laptop. This tutorial, or parts of it, will help you prepare your laptop for repairs such as DC jack repair, fan replacement, damaged LCD screen replacement and video chip repair.
If you would like to have your computer repaired for you, send it to us at 365 Laptop Repair and one of our experienced technicians will do it for you. Visit our Repair Page for this laptop for more information.