Lenovo S41-70 Disassembly

In this guide, I’ll explain how to disassemble the Lenovo S41-70 to remove the bottom case, battery, RAM, hard drive, wireless card, cooling fan, and motherboard.

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Remove eleven screws securing the bottom case.

Carefully pry up the bottom case with a pry bar.

The bottom case was removed.

Here’s the Lenovo S41-70 bottom case.

Now, you can get access to the battery, hard drive, wireless card, RAM, heat sink, and cooling fan.

The Lenovo S41-70 comes with a 7.4v, 4050mah Li-polymer battery, Lenovo model: L14M2P21.

Disconnect the battery power cable from the motherboard.
Remove all screws securing the battery. The battery can be removed.

Remove all screws securing the hard drive module.

The Lenovo S41-70 features a Western Digital 500GB 5400 rpm hard drive.

Disconnect two wireless card antenna cables. Remove one screw securing the wireless card.

The wireless card model is T77H542.00, and the Lenovo model is 00JT473.

Broadcom BCM943162ZP wireless card

The Lenovo S41-70 only has one RAM slot. If you want to upgrade the RAM, just replace it with a big-capacity RAM.

Remove all screws securing the heat sink and cooling fan.
Disconnect the fan cable from the motherboard.

Lenovo S41-70 heat sink and cooling fan module

The cooling fan is coming from Taiwan SUNON.

Lenovo S41-70 motherboard

Intel® Core™ i5-5200U 2.2 GHz processor (3M Cache, up to 2.70 GHz), integrated Intel® HD Graphics 5500.

NVIDIA GeForce 920M graphics card

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

For more guides, check out the Lenovo S41-70 device page.