Lenovo ThinkPad X1 Carbon 4th Gen — 14" Business Ultrabook
Certified refurbished and backed by a 12-month Reboot IT warranty, the ThinkPad X1 Carbon 4th Gen (G4) pairs a 6th-generation Intel Core i5-6300U with 8GB of memory, a fast 128GB SSD and a 14" Full HD matte display in an ultra-light carbon-fibre chassis — premium ThinkPad build quality and all-day portability, running Windows 10 Professional.
⚠ Please note — BIOS Locked: The BIOS/UEFI firmware on this unit is password-protected. It boots straight to Windows 10 Pro and operates completely normally for everyday use, but you will not be able to enter the BIOS setup menu or change firmware settings (such as boot order or Secure Boot). If you require full BIOS access, this unit is not suitable for you.
Key Benefits
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Ultra-light carbon build: A carbon-fibre lid and magnesium-alloy roll cage keep weight to just 1.2kg while meeting ThinkPad durability standards — built to travel.
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14" Full HD matte display: A 1920x1080 anti-glare screen delivers sharp, comfortable visuals indoors and out, with no distracting reflections.
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Fast SSD storage: A 128GB SSD gives quick boot times and snappy application loading compared with mechanical hard drives.
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Legendary ThinkPad keyboard: A backlit chiclet keyboard with TrackPoint provides comfortable, accurate typing for long work sessions.
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Efficient 6th-gen performance: The Intel Core i5-6300U with Intel HD Graphics 520 handles office productivity, web, email and video calls with ease.
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Business connectivity: 3x USB 3.0, HDMI, Mini DisplayPort, 802.11ac WiFi and Bluetooth 4.1 keep you connected to peripherals and external displays.
Performance in Use
The X1 Carbon G4 is a premium business ultrabook that still holds up well for everyday work. The i5-6300U paired with an SSD keeps Windows responsive — document work, spreadsheets, email, web browsing and video conferencing all run smoothly, and the 8GB of memory is comfortable for standard office multitasking.
Its real appeal is portability and build. At 1.2kg with a rigid carbon-fibre shell and a superb backlit keyboard, it's a genuine pleasure to carry and type on all day — ideal for professionals, students and remote workers who are often on the move. The 14" Full HD matte panel keeps reflections down in bright environments.
As a 6th-generation system it ships with Windows 10 Professional, which it runs smoothly with business features like BitLocker and domain join. Note that the memory is soldered (non-upgradable), and as flagged above the BIOS is locked — the laptop runs normally but firmware settings cannot be changed.
Technical Specifications
| Processor |
Intel Core i5-6300U (6th Gen, 2 cores / 4 threads, 2.4GHz base, up to 3.0GHz turbo, 3MB cache) |
| Memory |
8GB LPDDR3 (soldered, non-upgradable) |
| Storage |
128GB SSD (M.2) |
| Display |
14" Full HD (1920x1080) matte, non-touch |
| Graphics |
Intel HD Graphics 520 (integrated) |
| Wireless |
Intel Wireless-AC 8260 (WiFi 802.11ac + Bluetooth 4.1) |
| Ports |
3x USB 3.0, HDMI 1.4, Mini DisplayPort, RJ-45 (via dongle), combo audio |
| Camera |
720p HD webcam |
| Keyboard |
Backlit chiclet with TrackPoint |
| Chassis |
Carbon fibre lid + magnesium roll cage, approx. 1.2kg |
| BIOS |
Password-locked — boots & runs Windows normally; firmware settings cannot be changed |
| Operating System |
Windows 10 Professional (64-bit, pre-installed & activated) |
| Warranty |
12-month Reboot IT warranty |
Is It Right for You?
✓ Best For
- Business professionals & students on the move
- Travel & everyday portability (1.2kg)
- Office productivity, web & video calls
- Buyers who value a premium keyboard
- Cloud-based and light multitasking work
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✗ Not For
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Users who need BIOS access (boot order, Secure Boot, virtualization toggles)
- Anyone planning to reinstall a different OS via USB boot
- Memory upgrades (RAM is soldered)
- Gaming or GPU-heavy work
- The latest Windows release (CPU not supported)
|
Condition Grades
| A — Excellent |
Minimal signs of previous use — no deep scratches, cracks, chips or missing pieces. Battery health 70% or above. Essentially appears nearly new. |
| B — Good |
Fully functional and professionally refurbished, but may show more visible wear such as light scratches or minor dings. Battery health 50–70%. |
Battery is a consumable and carries a 30-day battery warranty. Battery health figures are indicative.
Frequently Asked Questions
Can I access the BIOS / change firmware settings?
No — the BIOS on this unit is password-locked. The laptop boots straight to Windows and runs completely normally, but you cannot enter the BIOS setup menu or change settings such as boot order or Secure Boot. If you need full BIOS access, this unit is not suitable.
Can this laptop run Windows 11?
No — this laptop cannot run Windows 11. The 6th-generation Intel Core i5-6300U isn't on Microsoft's supported processor list, so it ships with Windows 10 Professional, which runs smoothly on it.
Can I upgrade the memory?
No — the 8GB LPDDR3 memory is soldered to the board and cannot be upgraded. The SSD can be replaced if you need more storage.
Is the operating system genuine and activated?
Yes. As a Microsoft Authorised Refurbisher, Reboot IT installs authentic, licensed Windows 10 Professional, pre-activated and ready to use.
How is the battery covered?
The battery is a consumable and is covered by a 30-day battery warranty. Grade A units have 70%+ battery health; Grade B units 50–70%.
Is shipping free?
Yes — this lightweight ultrabook includes free standard shipping to any Australian address, dispatched from our Melbourne warehouse.
Our Warranty & Promise
This Lenovo ThinkPad X1 Carbon 4th Gen is covered by a 12-month Reboot IT warranty and includes free standard Australian shipping. Since 2001, Reboot IT has been one of Australia's most trusted names in certified refurbished technology, serving more than 100,000 customers from our Melbourne base. As a Microsoft Authorised Refurbisher, every device is professionally tested, securely data-sanitised, cleaned and accurately graded before sale — so you can buy with total confidence and support sustainable technology reuse.