In this guide I explain how to disassemble Lenovo ideapad 300-15ISK laptop. I attempted to make this disassembly guide very detailed and clear so it’s easy to follow.
I’ll be using following tools: PH1 Phillips screwdriver, case opening pry tool and tweezers.
Remove two screws from the cover on the bottom.
Keep these screws separately, they are thicker than other screws.
Slide the cover to the shown direction and remove it from the laptop.
Remove four screws securing the hard drive assembly.
Slide the hard drive to the left (yellow arrow) to disconnect it from the motherboard.
Remove the hard drive.
Also, here you can access both memory slots. It’s not necessary to remove the memory module.
Remove three screws securing the keyboard.
I’m using flat pry tool to separate the keyboard from the case.
After the keyboard separated from the case you can continue removing it with your fingers.
Slide the keyboard towards the display assembly to access the connector underneath.
In the next step I’ll show how to release the keyboard cable.
On this picture the keyboard connector shown in the locked state. It must be unlocked in order to release the cable.
Lift up the locking tab (red arrow) and pull cable out (yellow arrow).
Now you can remove the keyboard.
Remove two screws securing the top case assembly.
Disconnect the power button cable and trackpad cable.
Unlock the connector (red arrow) and pull the cable out (white arrow).
Remove seven screws from the bottom.
Two screws I marked with yellow circles are thicker than other screws.
Start separating the top case assembly from the bottom. I’m using plastic pry tool for that.
Continue separating the top case with your fingers. You’ll have to apply some reasonable force to unsnap the top case from the bottom case.
Remove the top case (palmrest) assembly.
On the other side you can access the trackpad and power button board.
The optical drive was secured by one screw we removed in the step 7.
Push the optical drive out of the bottom case and remove it.
In Lenovo ideapad 300-15ISK laptop the DC power jack attached to the harness. It can be easily removed and replaced if necessary.
Unplug the DC jack cable from the motherboard. The connector is hidden on the other side of the motherboard but it’s not far away from the edge.
Remove the DC jack power harness.
In Lenovo ideapad 300-15ISK you can remove the battery ONLY after you remove the top case.
The battery connected to the motherboard via the cable.
Unplug the battery cable from the motherboard.
Remove two screws securing the battery.
Close the display and place the laptop upside down.
Remove the battery. Carefully pull the battery cable through the opening in the case.
Unplug the display cable from the motherboard.
Unroute the display cable from the guided path.
In order to unroute Wi-Fi antennas we’ll have to disconnect them from the wireless card first.
Unplug Wi-Fi antennas from the wireless card.
It will be easier to unroute Wi-Fi antennas if you remove the optical drive board.
Unlock the connector, release the cable. Remove one screw securing the board and remove it.
Now you can pull Wi-Fi antennas through the opening in the case and unroute it from the guided path.
Remove four screws securing display hinges.
Separate the display assembly from the laptop base.
Remove three screws securing the motherboard.
Disconnect the speaker cable (red square) and USB board cable (red rectangle).
Lift up and remove the motherboard.
On the other side of the motherboard you can access the cooling fan assembly and SMOS battery.
Yes, in Lenovo ideapad 300-15ISK laptop it’s necessary to remove the motherboard in order to remove and replace the cooling fan.
Disconnect fan cable from the motherboard.
Remove one screw securing the fan.
Peel off black tape securing the fan to the heatsink.
Remove and replace the cooling fan if necessary.