Lenovo ThinkPad 25 Teardown and SSD, RAM Upgrade Options

The ThinkPad 25 has two memory card slots which can be changed.
16GB memory bank
The laptop has a built-in 16GB memory bank. The user can also add a 16GB memory bank.
Wi-Fi module and 4G surfing module
The Wi-Fi and 4G network module can be seen at the top left corner.
The Wi-Fi and Bluetooth two-in-one module are called 8265NGW from Intel.
4G surfing model
The 4G surfing model number is EM7455 which supports LTE B1-B5, B7, B12, B13, B17, B20, B25, B26, B29, B30, B41. It also supports UMTS/HSPA+ B1, B2, B3, B4, B5 and B6.
4G network card back
It is 4G network card’s back part.
wire layout
The laptop has regular wire layout besides two sides of the speaker module.
loudspeaker module
It has small loudspeaker module.
loudspeaker module
loudspeaker module
heat dissipation module
Now, we are ready to disassemble heat dissipation module.
remove screws
After removing the screws, the whole heat dissipation module can be easily disassembled.
copper pipes
There are two thick copper pipes which can help heat dissipation of CPU and GPU. The effect of heat dissipation would be better if the copper pipes were shorter.
The vent slice has moderate thickness.
remove cover
Remove the keyboard, and the motherboard can be disassembled. Next, remove the cover on the functional keys at the top left corner.
remove keyboard
Then, the whole keyboard can be removed. The surface of the touchpad uses glass material.
remove keyboard
Push the keyboard upwards to remove all fixed buckles.
disconnect ribbon wire
Disconnect two wire ribbons, the little red circle, and three mice keys.
The keys to turning the laptop on are separated.
key travel

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