How to upgrade SSD on Lenovo ThinkPad X1 Carbon 4th


After waiting for three days, I finally received the ThinkPad X1 Carbon 4th. The first thing is upgrading the SSD. My new SSD is Samsung 512G 950pro.

Specification list

Samsung V-NAND 512G 950 PRO SSD
Form Factor: M.2 (2280)
Interface: PCIe 3.0 x4 (up to 32 Gb/s) NVMe 1.1
NAND Type: Samsung V-NAND
Sequential read: up to 2,500 MB/S, sequential write: up to 1,500 MB/S, 4K random read: up to 300,000 IOPS, 4K random write: up to 110,000 IOPS.
More information about Samsung V-NAND 512G 950 PRO, please go to

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Lenovo ThinkPad X1 Carbon 4th only has one M.2 slot, 512G SSD cannot meet my daily needs, because the laptop comes with a TF card slot, so I bought a 200GB TF card.


Ac adapter and user manual

Lenovo 45w Ac adapter

Onelink + VGA and Ethernet cable extension

Headphone jack, USB port, and HDMI port

DC power jack, MiniDP, and USB port

TF card and SIM card slot

Remove all screws from the bottom case.
Pry up and remove the case.
When the bottom case was removed, we can access the internal components, including SSD, battery, wireless card, CMOS battery, and cooling fan module.
The M.2 SSD is covering by a black insulating paper, open the paper, you can access the wireless card and SSD.

It also has a spare M.2 slot for WWAN.

The SSD has been installed successfully.
From the picture, Lenovo ThinkPad X1 Carbon 4th features a 15.2V, 3.44Ah, 52Wh Li-ion battery, Lenovo: SB10F46466, 00HW028.
The battery is as same as ThinkPad X1 Yoga’s battery.



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