ASUS Zenbook DUO (UX8406) Repair

The Asus ZenBook Duo (UX8406) represents a significant design shift from its predecessors, moving from a "half-screen" secondary display to two full-sized 14-inch 3K 120Hz OLED touchscreens connected by a 180° hinge. The device is powered by Intel Core Ultra "Meteor Lake" processors and includes an integrated kickstand for multi-mode use (Laptop, Desktop, Dual Screen, and Sharing modes).

To confirm your device is a UX8406:

• Bottom Label: Look for "Model: UX8406--" etched near the cooling vents.
• Physical Features: It features a detachable Bluetooth keyboard with pogo-pin connectors that sits between the two screens.
• Software: Search for "System Information" in Windows to see the BIOS model version.

• Processor: Up to Intel Core Ultra 9 185H (..MA model) or 285H (..CA Model) with integrated Intel Arc Graphics.
• Memory: 16 GB or 32 GB LPDDR5x (Note: RAM is soldered and not upgradeable).
• Storage: M.2 NVMe PCIe 4.0 SSD (User-replaceable).
• Battery: 75 Wh lithium-ion battery.
• Ports: * 2x Thunderbolt 4 (USB-C)
  • 1x USB 3.2 Gen 1 Type-A
  • 1x HDMI 2.1 (TMDS)
  • 1x 3.5mm Combo Audio Jack

The UX8406 is more repair-friendly than previous Duo models. The bottom panel is secured by standard Torx screws. Once inside, the SSD and Battery are modular and can be replaced. However, because of the dual-screen nature, the bottom display must be disassebled with care to access the computer components.

Warning: The OLED panels are fragile. Always use plastic prying tools and disconnect the battery before attempting any internal component swaps.