Asus LaptopAsus UX303LNTeardown

Asus UX303LN Disassembly and HDD, RAM, SSD upgrade options

In this guide, I’ll explain how to disassemble Asus UX303LN. I will remove the battery, wireless card, keyboard, palm rest, hard drive, heat sink, cooling fan and motherboard. Refer to this guide. You can repair, clean cooling fan, upgrade RAM, SSD for your Asus UX303LN.

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Remove all screws from the bottom case.

Pry up the bottom case with a pry bar, lift up the bottom case and remove it.
There are no snaps securing the bottom case, so remove the case is pretty simple.

After the bottom case was removed, you can get access to the battery, speakers, wireless card, hard drive, heat sink and cooling fan.

Remove the screws securing the battery. Disconnect the battery power cable and two speaker cables.

Asus UX303LN battery has been removed.

Asus UX303LN’s speaker module fixed on the battery.

The Asus UX303LN comes with an 11.31v, 50wh Li-polymer battery, Asus part number: C31N1339.

Remove all screws securing the hard drive module.

The Asus UX303LN featured a Seagate 500GB hard drive.

Asus UX303LN provide a spare mSATA slot for users upgrade SSD.

Asus UX303LN wireless card

Asus UX303LN heat sink and cooling fan

The cooling fan coming from SUNON

Asus UX303LN motherboard and USB board

NVIDIA GeForce GT 840M graphics card with 2GB DDR3 video memory.

Intel Core i7-4510U processor (4M Cache, up to 3.10 GHz)

4GB SK Hynix RAM is soldering on the motherboard.
Asus UX303LN also have a spare RAM slot, so you can add another 4GB RAM.

When the motherboard removed, you can access the touchpad and keyboard.

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  1. i can’t open the bottom case..could you give me any help? i removed the screws but the bottom doesn’t go awat from the side of the screen.. ­čÖü

    1. I had the same problem and it is a quality issue…I sent it to be repair and they could not do it and gave the entire money back for the laptop… It is a beautiful laptop but terrible quality at the hinge…

  2. Hi everyone. Have you tried to replace the whole keyboard ? If so, can you give me a hint who you do that ? Because then you open the laptop and disesemmble the screws it is not easy to divide keyboard from metal

      1. EDIT: In fact you can’t. The keyboard is soldered to the case.

        if you want to repair your keyboard, you need to buy a whole new plamrest + keyboard

  3. How do I get the hinge cover open to replace the hinge (the silver strip that is still left on when you take off the bottom cover)? The hinge broke and it’s no longer under warranty.

    1. Thanks. I looked through all the pages but there is no specific instructions on how to open up the small cover over the hinge.

      It says “Visit our repair blog to learn how to remove and install LCD hinge on Asus UX303LN” but there are no instructions specifically for hinge replacement.

      For replacing the battery, the hard drive, etc., all you need to do is take off the bottom cover. But for the hinge, even after you take off the bottom cover, there’s still another small cover over the hinge. And this small cover doesn’t have any screws to remove.

  4. Hello UX303L’s owners,
    There is now an unpleasant mark on the screen.
    It is located at approximately the middle of the screen (6,7cm top, 10cm of the edge). It’s 0.5cm high and 9cm width. It’s as if something had worn the screen. This is probably due to friction with the keyboard.
    I contacted Asus support but they did not want to know.
    Other persons have the same problem?

  5. Great instructions,

    I have an ASUS UX303U, I have upgraded the RAM and SSD Hard drive.

    4GB on board RAM + 16GB = Total 20GB
    Micron 16GB PC3L-12800 DDR3L-1600Mhz 204Pin Unbuffered Sodimm Ram – $129

    SSD Hard drive Total 2GB
    Samsung 850 EVO Series 2TB 2.5″ SATA3 6Gb/s SSD – $776

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