How to disassemble Toshiba Satellite E45t Ultrabook

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Toshiba Satellite E45t Ultrabook disassembly

In this guide I show how to disassemble Toshiba Satellite E45t Ultrabook. I will explain how to get an access to all main components and remove the keyboard.

If you want to replace the keyboard on a Toshiba Satellite E45t Ultrabook, you will have to take it apart completely and remove the motherboard.



You should be able to use this disassembly guide for the following Toshiba Ultrabook models:

  • Satellite E45T-B4106
  • Satellite E45T-B4300
  • Satellite E45t-A4100
  • Satellite E45t-A4200
  • Satellite E45t-A4300
  • Satellite E45t-AST2N01
  • Satellite E45t-AST2N02
  • Satellite E45t-B4204

STEP 1.

Remove all screws from the bottom of the laptop.

Remove all screws from laptop bottom

STEP 2.

Insert a thin metal case opener tool between the bottom cover and the top case assembly.

Pry the bottom cover up to unfasten it from the top case. Continue removing it with your fingers. You’ll have to apply some reasonable force to separate two parts from each other.

Pry up bottom cover and separate from top case

STEP 3.

Remove the bottom cover.

Remove the bottom cover



STEP 4.

Remove one screw fixing the battery.

Peel off the clear tape securing the battery cable connection. Unplug the battery cable from the motherboard.

Remove one battery screw and disconnect battery cable

STEP 5.

The Wi-Fi antenna cables and the DC jack harness routed on the left side of the battery. Un-route these cables from the guided path on the battery. Remove the battery.

Remove laptop battery

STEP 5.

Remove three screws fixing the hard drive bracket. Unplug the hard drive SATA cable from the motherboard (yellow square). Remove the hard drive.

Remove screws from hard drive bracket and disconnect SATA cable

If you plan to replace the hard drive or upgrade it to a SSD, you will have to transfer the bracket and cable to the new drive.

Transfer bracket and cable to new HDD SSD

STEP 6.

Toshiba Satellite E45t Ultrabook motherboard has two memory slots. You can leave both memory modules connected unless you plan to replace or upgrade them.

Remove both memory modules

STEP 7.

Remove two screws attaching the cooling fan to the case. Unplug the fan cable from the motherboard.

Remove two fan screws and unplug cable

Remove the fan and replace it if necessary. The original fan part number is printed on the green label: AB07505HX060300.

Replace failed fan

STEP 8.

Unplug both Wi-Fi antenna cables from the wireless card.

Wi-Fi cable with a white sleeve connected to the port #2 (Main port).

Disconnect Wi-Fi antenna cables

STEP 9.

Remove two screws securing the Wi-Fi card and Toshiba 32GB cache SSD. Both cards will pop up at a 20 degree angle.

Pull both card out of the slots.

This step is optional unless you plan to replace the Wi-Fi card or cache SSD. You can leave them connected to the motherboard.

Remove Wi-Fi card and SSD cache card

STEP 10.

The DC power jack is mounted under the hinge. Let’s remove the jack.

Unplug the DC jack harness from the motherboard and remove two screws securing the hinge.

Disconnect DC jack cable and remove screws from hinge

STEP 11.

Open up the hinge to release the jack.

Lift up the DC jack from the case and remove it.

Remove DC power jack

STEP 12.

Disconnect the following cables from the motherboard:

  • Speaker cable (red square)
  • Keyboard backlight cable (yellow square)
  • Keyboard data cable (orange rectangular)
  • USB Audio SD card reader cable (green rectangular)
  • Touch screen video cable (pink rectangular)

Disconnect all cables from motherboard

Here’s how to release the USB Audio SD card board cable.

Lift up the white locking connector tab and pull the cable out.

Disconnect USB Audio SD reader board cable

The keyboard cables connectors are different. On the following picture I show how to release the data cable but the backlight connector is similar, just smaller.

Slide the locking tab about 2 millimeters to the shown direction (two red arrows). Pull the cable out (yellow arrow).

Disconnect keyboard data cable

Unplug the touch screen video cable using the black belt on the top.

Disconnect touchscreen video cable

STEP 13.

Remove one screw securing the hinge. I forgot to circle it on the picture but you’ll find it easily.

Open up the hinge.

Open up hinge

STEP 14.

Remove two screws securing the motherboard.

Remove two screws fastening motherboard to top case

STEP 15.

Remove the motherboard from the laptop case.

Remove Toshiba Satellite E45t Ultrabook motherboard

Here’s the other side of the motherboard.

Other side of motherboard

The following components are still attached to the top case but can be easily removed:

  • USB Audio SD card reader board with the cable.
  • LED status board with the cable.
  • Touchpad (mounted under a metal bracket).

Few boards still connected to top case

STEP 16.

With both hinges opened up the touch screen display can be easily separated from the top case.

Separate touchscreen display from top case

The display has been removed.

Touchscreen display removed

STEP 16.

Peel off the black sticky tape securing the keyboard cables to the top cover.

This tape is the reason why it’s impossible to remove the keyboard without removing the motherboard.

Peel off tape securing keyboard cables

STEP 17.

There are a few hidden latches securing the bottom side of the keyboard to the palmrest. You’ll need a thin metal case opener to release the latches. You can use a thin knife blade instead.

Insert the case opener between the keyboard and the palmrest.

Unlock hidden keyboard latches

STEP 18.

Pry the keyboard up to separate it from the palmrest.

Move the case opener to the next latch and repeat steps 17 and 18.

Separate keyboard from palmrest

STEP 19.

After all hidden latches are released, lift up the keyboard from the case.

After that move the keyboard to the shown direction and pull the cables through the opening in the case.

Pull keyboard cables through opening in top case

STEP 20.

The keyboard has been removed and now it can be replaced with a new one.

Remove and replace Toshiba Satellite E45t keyboard


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