Asus Laptop RepairTeardown

Asus ZenBook 14 UX433FA UX433FN Disassembly (RAM, SSD upgrade options)

In this guide I will show you how to remove Asus ZenBook 14 UX433FN bottom cover, I will also remove the SSD, battery, heatsink, cooling fan, speaker, touchpad, keyboard, palmrest, motherboard, and screen.

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It can be seen that the air inlet at the bottom is not really large, and the main air inlet should be on the other side of the LCD hinges. We also noticed that there is a small gap in the front of the fuselage, which also shows that the Asus ZenBook 14 UX433FN is a thin and light laptop that can support one-handed opening and closing.
Bottom case

The bottom case is fixed by 9 visible screws, but you need to pay attention to the screws under the two foot pads.
Remove foot pads

After removing 11 screws, insert a plastic thin tool under the bottom cover and slide the tool to unlock the latches that securing the bottom cover to the palm rest.
Remove screws

Remove bottom case

The internal layout of the Asus UX433FN is perfect; each part is neatly placed and has a high internal space utilization.
Internal layout

There is a metal piece on the battery to fix and protect the battery. This design is the first time I saw it in a thin and light laptop.
Internal battery

Since the battery occupies nearly half of the space inside, the battery capacity reaches 50 watts, which is relatively large in an ultrabook.

Disconnect the battery cable from the motherboard and remove the screws that secure the battery to remove the battery.
Under the battery, we can access the touchpad module and the keyboard cable, on the right side of the battery is M.2 SSD.
Remove battery

The size of the speaker is still relatively large, which can bring good sound effects.

The Asus ZenBook 14 UX433FN comes with a Western Digital 512GB NVMe M.2 SSD, which uses a multi-chip stack design, so the effective area of the board is quite small.

Remove three screws that securing the touchpad and take out the touchpad.
Remove touchpad

The surface of the touch panel has a layer of glass, which can give users a very good touch feel.

Remove three screws and disconnect the fan cable from the motherboard, then take out the cooling fan.
Remove cooling fan

It can be seen that the fan is very thin, but the fan blade area is not small, so even a single CPU fan can bring considerable air volume.
Cooling fan

The motherboard is divided into two parts by the fan, so there is a yellow cable to connect the two circuit boards.
yellow cable

It is worth noting that the LCD hinge is securing on the motherboard, and it is also securing the LCD cable.
LCD hinge

The LCD hinge on the right side not only the securing the circuit board, but also securing the heatsink module. So we need to remove the LCD hinge before we can continue the disassembly work.
Right LCD hinge

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  1. My new UX433FN has a few millimeter lift on the bottom right hand of my touchpad. It’s not very noticeable and you’ll only feel it when you run your fingers from the palm rest to the touchpad. Given that this is a brand new laptop, I don’t suspect that this is battery related. Care to share your opinion on this?

  2. Hi,
    is it possible to add one more SSD or is the motherboard limited to connecting a single SSD?
    Thanks in Advance!

  3. Hello, I have a ux433fn and because of water damage, I opened it up for drying then sent it for repair. The repair people say the motherboard is missing some pieces, so I was wondering if you still have the motherboard for checking what it has or if you have high resolution pictures of the motherboard that might help repair it. Thanks!

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