Lenovo ThinkPad 25 Teardown and SSD, RAM Upgrade Options

This laptop comes with 16GB of RAM. Users can also add another 16GB of RAM module.
16GB memory module

The Wi-Fi and 4G network modules are located in the upper left corner.
Wi-Fi module and 4G module

This laptop comes with an Intel 8265NGW wireless network card, which has an integrated Bluetooth module.
8265NGW

The model number of the 4G modem module is EM7455, which supports LTE bands B1-B5, B7, B12, B13, B17, B20, B25, B26, B29, B30, and B41. It also supports UMTS/HSPA+ B1, B2, B3, B4, B5, and B6.
4G module

Close-up of the back side of the 4G network card.
4G module

Except for the speaker module, the laptop adopts a conventional cable layout.
Internal cable layout

It has a small loudspeaker module.
Loudspeaker module

Close-up of the speaker module
Loudspeaker module

Loudspeaker module

Now, we are ready to remove the heat dissipation module.
Heat dissipation module

After loosening the screws on the heatsink, the cooling system module can be easily removed.
Remove the screws

Cooling system

There are two thick copper pipes used to help cool the CPU and GPU. If the copper pipes are shorter, the cooling effect will be better.
Vent

Remove the cover plate from the function key area in the upper left corner.
Remove the cover

Slide the keyboard upward from both sides with your hands to detach it from the laptop.
Remove the keyboard
The touchpad surface is made of glass, providing a smooth operating experience.
Remove the keyboard

Flip the keyboard over and place it on the palm rest.
Fisconnect the ribbon cables

Disconnect the keyboard ribbon cable and the backlit cable from the motherboard to completely remove the keyboard.
Keyboard

The power button is integrated into a separate module, and it is separate from the keyboard.
Keys

Key travel

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