In this guide I explain how to take apart Asus ZenBook UX330 UX330U UX330UA laptops.
In this particular example I’m taking apart an Asus ZenBook UX330U but all other models should be identical.
Start the disassembly process with removing all screws from the base cover.
One Torx 5 screw (color-coded in green) is longer than eight other Torx 5 screws (color-coded in red).
Also, don’t forget to remove two Phillips screws hidden under two upper bottom feet (color-coded in yellow).
Separate the base cover from the top case assembly.
Remove the base cover.
Make sure to disconnect the battery cable before continuing any further laptop disassembly.
Asus ZenBook UX330 UX330U UX330UA I/O cable part number: 08201-01342000.
In order to disconnect the battery cable, it’s necessary to unlock the connector first.
Slide the metal locking bracket to the shown direction (red arrow) to unlock the connector.
After that lift up the battery connector (yellow arrow) and unplug it from the motherboard.
In Asus ZenBook UX330 UX330U UX330UA laptops the battery is mounted under the I/O board cable. Let’s remove this cable first.
Remove two screws from each side of the I/O cable. Two of these screws (on the bottom) also securing the battery.
Lift up each side of the I/O cable to disconnect it from the motherboard and I/O board.
Remove the I/O cable.
Remove six screws attaching the battery to the top case assembly.
Lift up and remove the battery.
Asus ZenBook UX330 UX330U UX330UA laptops have the following battery model installed: C31N1602.
Replacement battery available here: https://ebay.to/2UTMnGL
Remove one screw securing the solid state drive.
Pull the SSD out.
Remove one screw securing the cooling fan and disconnect the fan cable from the I/O board.
Remove the cooling fan.
Replacement fan available here: https://ebay.to/38vpMo3
Disconnect two Wi-Fi antenna cables from the wireless card.
Remove one screw securing the wireless card.
Pull the wireless card out.
Remove two screws securing the I/O board and unplug the speaker cable.
Remove the I/O board (USB, SD card reader, audio jack board).
Replacement I/O board available here: https://ebay.to/2tZz78n
Remove three screws attaching the motherboard to the top case assembly.
Disconnect the following color-coded cables:
– Display cable (orange).
– Touchpad cable (yellow).
– Keyboard cable (green).
– Keyboard backlight cable (blue).
Here’s how to disconnect all flat cables on the lower side of the motherboard.
Unlock the connector by lifting up the locking tab (red arrow) and after that pull the cable out (yellow arrow).
Here’s how to disconnect the display cable.
Peel off sticky tape securing the connection. Pull the cable out.
Remove the motherboard from the top case assembly.
Here’s a photo of the other side of the motherboard.
Replacement motherboard available here: https://ebay.to/2Ht48Vu
Asus ZenBook UX330 UX330U UX330UA motherboard has the DC power jack soldered.
If the DC jack fails, you’ll need a soldering station to replace the jack.
Place the laptop upside down with the display opened up on the edge of the desk.
Remove two screws from each display hinge.
Separate the display assembly from the top case assembly.
By the way, in Asus ZenBook UX330 UX330U UX330UA laptops the display can be removed only after you remove the motherboard. A part of the right display hinge is mounted under the motherboard.
The keyboard is permanently attached to the top case and cannot be easily removed and replaced. If the keyboard fails, you’ll have to replace the top case assembly or try this repair.
Replacement palmrest/keyboard assembly available here: https://ebay.to/37wP1F8