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The hard drive is where a computer permanently stores information, making it very important. A broken or damaged hard drive must be replaced to restore proper functioning.

  1. Asus X551CA Hard Drive Replacement, Keyboard Plate Cover: Schritt 1, Bild 1 von 1
    • Power off and unplug your laptop before you begin.

    • Turn the laptop upside-down and remove the following screws using a Phillips #0 driver:

    • Two 9.5 mm screws in the middle of the back edge, and one 9.5 mm screw in the right edge

    • Two 4.3 mm screws in the back corners

    • One 17.5 mm screw at the left edge near the optical drive

    • Three 4.3 mm screws in the front edge

    screw assignments are definitely wrong. I swapped the red and the green, as per comment above, and kept the blue as-is.

    jasonbuechler - Antwort

    jason is right

    starwilson - Antwort

    correct, swap the green and red

    Josh - Antwort

    Jason is correct

    Clem Lanoe - Antwort

    Thanks everyone. It does seem like someone got their screws mixed up when they wrote this guide. I’ve made some changes as you all suggested, so the screw placements should be more accurate now. If anyone with this laptop could verify the screw measurements with a digital caliper, that’d also be very helpful.

    Jeff Suovanen - Antwort

  2. Asus X551CA Hard Drive Replacement: Schritt 2, Bild 1 von 1
    • Use the plastic opening tool to separate the keyboard plate cover from the bottom cover. In order to do this, insert the plastic opening tool in between the keyboard plate cover and the bottom cover, then slide along edges to pry open.

  3. Asus X551CA Hard Drive Replacement: Schritt 3, Bild 1 von 1
    • Locate the three ribbons connecting the keyboard plate cover to the bottom cover.

  4. Asus X551CA Hard Drive Replacement: Schritt 4, Bild 1 von 3 Asus X551CA Hard Drive Replacement: Schritt 4, Bild 2 von 3 Asus X551CA Hard Drive Replacement: Schritt 4, Bild 3 von 3
    • Invert the laptop in order to gain access to the ribbons.

    • Remove each ribbon by flipping the small white plastic flap up and gently pulling on the ribbon.

    Don't remove the ribbons, just move the keyboard slightly forward to remove the old battery and insert the new one (just make sure they are all connected when you put it back)

    Flyer292 - Antwort

  5. Asus X551CA Hard Drive Replacement: Schritt 5, Bild 1 von 1
    • Now that the ribbons have been detached from the bottom cover, carefully remove the keyboard plate cover. Once it has been removed, place it in a safe and moisture free area so it does not get damaged.

    Is painting your nails crucial for step 5?

    wiedzmin - Antwort

    Yes and you have to put lotion on

    joemidjette - Antwort

    Now, that is a stupid question! Of course! As I am working on 551M, I naturally have to have nails painted orange, with blue accents!

    gregtokarski -

    that boy ain't right

    Rich Spillman - Antwort

  6. Asus X551CA Hard Drive Replacement, Hard Drive: Schritt 6, Bild 1 von 1
    • Unscrew the three 5.5 mm Phillips #0 screws with the Phillips #0 Screwdriver.

    where is it jumper cmos laptap asus s400c.in motherbord .for rest cmos..plz hllp me?can not see ....

    arash - Antwort

  7. Asus X551CA Hard Drive Replacement: Schritt 7, Bild 1 von 1
    • Once the screws have been removed, place your fingers on the left corners and push the hard drive towards the right edge of the laptop (relative to the picture).

  8. Asus X551CA Hard Drive Replacement: Schritt 8, Bild 1 von 1
    • Once it is free, remove the hard drive from its internal cavity.


To reassemble your device, follow these instructions in reverse order.

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You mixed up the red and green screws, sizes are wrong.

The red screws are 9.5 not 14.3!

the yellow screws are 4.3 (mixed up with 14.3 ?) not 9.5 !

You do NOT need to remove the ribbons, just use a small screwdriver.

Tony - Antwort

Excellent work !

Drew Lawrence - Antwort

Same issue as Tony on 09/03/2014

The screw sizings are mixed up. The red screws are 9.5, not 14.3

The yellow screws are 14.3 not 9.5. Please fix the repair guide text

Mevlan Coma - Antwort

It should be fixed now! Thanks to both of you for the tip. By the way, you can always edit the text yourself. ;)

Jeff Suovanen -

Thanks for the info!

Abe Aleman - Antwort

All went well until it came to replacing the ribbon cables. Tried and tried, and couldn’t get them to stay in place. Had to call in a computer repair chap who fixed them in a couple of minutes. After that, everything was fine.

Edgar Freeman - Antwort

My ribbon has a split in it. Is it still useable?

Tom - Antwort

Hi, does this guide work for a P551CA too? The back looks like the same…

Thanks : )

Marco - Antwort

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