Asus LaptopAsus UX305FA

Asus Zenbook UX305FA Disassembly and RAM, SSD Upgrade Options

In this guide, I’ll explain how to disassemble the Asus Zenbook UX305FA to remove the bottom case, battery, SSD, wireless card, heat sink, and motherboard.

Remove ten visible screws from the bottom case.

Remove four rubber mats, under the rubber mats. You can find the hidden screws.

Carefully pry up the bottom case with a pry bar or guitar pick.

When the bottom case is removed, you can access the internal components of the Asus UX305FA, including the SSD, battery, wireless card, heat sink, speaker, and motherboard.

To protect the hardware, you need to disconnect the battery connector first.

Asus UX305FA has an 11.4v 45wh Li-polymer battery, and the Asus part number is C31N1411.

Under the battery, you can access the touchpad module.

Remove one screw securing the SSD.

Because Asus UX305FA is a fanless ultrabook, so the SSD is covered by a layer of cooling stickers.
The Asus UX305FA comes with a Micron 256GB M.2(NGFF) SSD.

Remove one screw securing the wireless card.

Intel Dual Band Wireless-N 7265 wireless card

Disconnect the yellow cable from the motherboard connecting to the USB board.

Remove four screws securing the motherboard.
Disconnect the LCD cable, touchpad cable, and speaker cable from the motherboard.

Asus UX305FA motherboard

Now you can see the keyboard completely. It seems to not be a backlit keyboard.

Asus UX305FA USB board

The right side speaker

The left side speaker

Remove four screws securing the heat sink.

Remove the heat sink.

The onboard RAM chips are covered by a layer of cooling stickers.

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59 Comments

    1. I found this on a quick search, I haven’t tried it, so I don’t know how good it is or how well it fits.
      Give it a try and post your results please

      1. I need to remove the BIOS battery. The laptop won’t power on, and the CMOS reset won’t work, so I wanted to give it a try. I appreciate any help.

  1. Hi, folks,

    I have some questions:
    Can you replace the CPU with an i3/5/7 easily?
    Is it easy to upgrade RAM?
    Does it work fully with Linux Distros (Ubuntu/Elementary Freya and Mate)
    If not, what would be the optimal setup? I’m on a MacBook Pro, and I am starting to get fed up with it.

    Thanks
    Ali

  2. How do you remove the LCD cable from the motherboard? Do you just pull up away from the motherboard? Is there a locking mechanism that needs to be disengaged?

  3. Please change the article to read.

    The visible screws are removed by a T5 screwdriver. Note the back two screws near the Hinge are longer.

    Carefully remove the back feet two Philips “0” screws are found below them. Do not attempt to remove the front feet they are molded into the bottom plate.
    Carefully lever up the bottom plate after all screws are removed with a guitar pick or a fingernail. Start at the back hinge since this will give you the most advantage. Once started it should be removed quite easily. Note the bottom plate does not include the side USB ports etc. They are on a separate side wrap.

    This should help some people! Cheers, John!

      1. I believe the backplate ‘visible screws’ are Torx T5 x 2.5 mm; is this correct? I’m having trouble finding these (one is missing from my refurbished laptop. Can I use m2 x 2.5 mm instead? Can you suggest a site to buy these? Also, are all 10 the same length? I have read that 2 are longer. Thanks for your help.

  4. Hi again. I put the 500G Samsung 850 M.2 SSD drive in. It worked perfectly and I am writing on the unit. The UX305FA was the Microsoft Curated unit so it didn’t have much trash. Use the 8Gig USB recovery backup (You should use a 16G drive just in case.) I recovered to the new SSD, and it thought it was the Crucial 256GB one. The unit was new. You could also use your favorite cloning software on a hard drive and back if you have data on the unit.

    I find that the Wi-Fi has more limited reception than any other laptop I have and am assuming it is because of the Aluminum case. Did you find where the antennas are in the LCD section?

    Cheers John

    1. Hi, did you put cooling stickers on the new SSD? where did you buy them? If not, aren’t you afraid of overheating?

    2. Hi, John, I would like to follow your suggestion to upgrade to this Samsung 500GB. Are there any pitfalls? Is the capacity fully accessible? Can you provide any links for instructions?

  5. My keyboard crapped out, and I can’t seem to fix it. Can you help me find the right replacement part? Thanks!

  6. Is there any disadvantage to not having the cooling sticker on the m.2 SSD when replacing it? Did someone notice any differences in terms of device temperature?

  7. Hey, two question
    1. can I remove the battery and put in a new one (for the future when the battery loses its power)
    2. can I upgrade the SSD from 256 to 512? and if it works fine on an i5 model.

      1. Thanks for the replay
        Forgot to ask what about the keyboard. Can I replace it with a backlit one?

  8. I stupidly dropped a screw on the motherboard when the battery was not disconnected. The motherboard “sparked out” and is destroyed (It’s why I searched your page). Will that also have damaged the battery since it was still live? There are no lights showing for the battery connected. And possibly other boards like the USB board? I was hoping to replace the motherboard, but maybe I now have a total write-off?
    PS I wish I had found your instructions before I started. They are really excellent!

    1. Hello! Graham, can you please let me know if you’ll ever need to buy a new motherboard? Where do you buy them? I also need to replace the UX305FA motherboard. Thanks!

      1. I have seen second-hand motherboards on eBay with the correct model number. Not cheap, and I wasn’t sure if the other parts were damaged. So I decided to wait till I could find a cheaper second had one. There are also other sellers one was “stripped by a nerd” who sells reconditioned ones. But I have to say that UX305FA is not that spectacular. I found an Amazon warehouse deal on an HP Elitebook, which I prefer a backlit keyboard, full i5 and a decent power button well away from the other keys! Brilliant machine! I may find a cheap replacement eventually but they still sell at a premium!

  9. Thanks for this article!

    If I want to replace the battery, what battery should I use? Can one buy the same battery that Asus comes with?

    1. Were you able to replace the keyboard? My right arrow key stopped functioning, so I bought a replacement on AliExpress. But I am not sure how to do it. Is there a way to remove the motherboard without removing the SSD, Wi-Fi, or heatsink?

  10. My Asus ux305f would not power up. I tried taking out the battery to use only AC power, but it’s still not working. I tried connecting it to an external display, but the same problem. Any suggestions will be greatly appreciated.

    Thanks in advance.

  11. Hi,
    I couldn’t understand how to upgrade my RAM. I want to upgrade my 4GB RAM to 8GB RAM. If I buy any DDR3 RAM, can I apply it? Or what is the solution? Because the user guide says you can upgrade from 4GB to 8GB, can anyone explain how it can be?

  12. Be good to point out that all four rubber feet do not need to be removed; only those near the display hinge have screws beneath. To my detriment, upon removing those nearest the front, they tore and came off in pieces. Beneath exist holes but no corresponding holes beneath, only the silver squares visible on the battery.

  13. As far as I know, we can’t replace the CPU, so can we replace the mainboard with another with a higher CPU? Can you please point out which one can be used? I don’t want to waste other parts because they are working well!

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