Dell Latitude 7400 Repair

For step-by-step help with issues such as display errors, overheating, or motherboard issues, refer to the troubleshooting page created for the Dell Latitude 7400.

The Dell Latitude 7400 is a business-class laptop designed for professionals who need a durable, lightweight, and secure computer for work. Released in early 2019, it is part of Dell’s long-running Latitude series, known for reliability in enterprise environments. The Latitude 7400 features a 14-inch display, Intel 8th Generation Core i5 or i7 processors, integrated Intel UHD 620 graphics, up to 32 GB of RAM, and fast M.2 NVMe solid-state storage. It has a slim aluminum chassis in silver-gray and was also available in a 2-in-1 version that could fold into a tablet.

The device was first introduced at CES 2019 and gained recognition as one of the smallest 14-inch business laptops available. It targeted business professionals, government workers, and corporate clients who needed both performance and portability. Prices at launch ranged from $1,299 to $2,099, depending on configuration. Its major strengths included long battery life (up to 13 hours), sturdy construction, and advanced security features such as TPM 2.0, fingerprint and smart card readers, and optional LTE connectivity.

The Latitude 7400 saw wide global distribution and received positive reviews for reliability and value. While it had no major recalls, some users reported minor issues such as screen flickering or Wi-Fi instability, typically fixed with software updates. It replaced the Latitude 7390, offering a thinner frame and updated Intel processors, and was later succeeded by the Latitude 7410 and 7420, which introduced newer CPUs and improved display options. Overall, the Latitude 7400 was praised for combining portability, security, and strong battery life, making it one of Dell’s most respected business laptops of its time.

The Dell Latitude 7400 has a slim silver aluminum body with a brushed-metal finish and the Dell logo centered on the lid. When opened, it features a 14-inch display with thin black bezels and a webcam at the top. The black keyboard includes a power button in the upper-right corner and a centered touchpad below.

Ports include USB-A, USB-C or Thunderbolt 3, HDMI, a headphone/microphone jack, and a microSD card reader, with some models offering a smart card or SIM slot. The model number “Latitude 7400” is printed on the bottom near the service tag label. You can identify this device by its silver metallic finish, centered Dell logo, and the model name on the underside. It was only released in a silver-gray color.

• Laptop Size: 0.74" x 12.6" x 8.4" (HxWxD)
• Weight: 2.9 lbs (1.35 kg)
• Display Size: 14.0 inches
• Display Resolution: 1366x768 (HD) or 1920x1080 (Full HD)
• Display Type: LED-backlit IPS (optional touchscreen)
• Aspect Ratio: 16:9
• Processor: Intel Core i5-8265U / i5-8365U / i7-8665U (8th Gen, Quad-Core)
• Graphics: Intel UHD Graphics 620 (integrated)
• Memory (RAM): Up to 32 GB DDR4 (upgradeable)
• Storage: M.2 PCIe NVMe Solid State Drive (various capacities)
• Operating System: Windows 10 Pro (upgradeable to Windows 11)
• Wireless Connectivity: Intel Dual-Band Wi-Fi, Bluetooth 5.0, optional 4G LTE
• Battery: 42Wh or 52Wh Lithium-ion with ExpressCharge support
• Power Adapter: 65W USB-C AC adapter
• Security Features: TPM 2.0, fingerprint reader, IR camera (Windows Hello), optional Smart Card reader
• Audio: Integrated stereo speakers and dual-array microphones
• Webcam: HD or IR webcam (depending on configuration)

• 2x USB 3.1 Type-A
• 1x USB-C / Thunderbolt 3
• 1x HDMI 1.4
• 1x MicroSD card reader
• 1x Headphone/Microphone combo jack
• Optional Smart Card reader / SIM slot

Source: Dell Latitude 7400 Setup and Specifications

• Dell Latitude 7400 Service Manual
• Latitude 7400: Visual Guide to your Computer
• Latitude 7400 Teardown removal guide for customer replaceable units (CRUs)