ASUS Zenbook Pro 14 OLED UX6404 Intel Core Ultra 9 185H Stylus Pressure Not Working Fix

The ASUS Zenbook Pro 14 OLED UX6404 is designed for creative professionals and supports the ASUS Pen 2.0 stylus with 4096 pressure levels. When pressure sensitivity stops working — strokes appear at a single uniform width regardless of how hard you press — digital art and handwriting applications lose their natural feel.

This guide covers the most effective fixes for stylus pressure not working on the ASUS Zenbook Pro 14 OLED UX6404 with the Intel Core Ultra 9 185H processor.

Why Stylus Pressure Stops Working

• Pen digitizer driver replaced by a generic Windows version
• ASUS Pen Buttons software not running or misconfigured
• Application-level pressure sensitivity setting disabled
• Pen firmware outdated
• Pen tip worn or internally damaged

Step-by-Step Fixes

Fix 1: Reinstall the ASUS Pen Digitizer Driver

The pressure sensitivity feature requires the ASUS-specific digitizer driver, not the generic Windows HID pen driver:

1. Open Device Manager and expand Human Interface Devices.
2. Uninstall any entry labelled HID-compliant pen or ASUS Pen.
3. Visit the ASUS Support page, search for the UX6404 model, and download the pen or stylus driver package.
4. Install and restart. Test pressure in a drawing application.

Fix 2: Enable Pressure Sensitivity in the Drawing Application

Many creative apps have their own pressure settings independent of the driver:

• In Adobe Photoshop: go to Edit, Preferences, Technology Previews and enable Use Windows Ink.
• In Clip Studio Paint: go to File, Preferences, Tablet, and select Wintab or Tablet PC depending on which works.
• In Krita: go to Settings, Configure Krita, Tablet settings, and set the input API to Windows Ink.

Fix 3: Reinstall ASUS Pen Buttons Software

The ASUS Pen Buttons software manages pen button mapping and can affect pressure detection:

1. Open ASUS System Control Interface or check for ASUS Pen Buttons in the installed programs list.
2. Uninstall the software, restart, then reinstall the latest version from the ASUS support page.

“Switching Krita to Windows Ink mode instead of Wintab restored full pressure sensitivity. The driver itself was fine — it was an application configuration issue.”
— Shazwani, digital illustrator

Fix 4: Replace the Pen Tip

ASUS Pen 2.0 tips wear down over time and can lose the small spring mechanism that detects pressure. Replacement tips are included with the pen or available separately. Remove the worn tip using the included removal tool and insert a fresh one, then test pressure sensitivity.

Fix 5: Update Windows and Display Driver

Windows Ink pressure support depends on the Intel graphics driver. Open Device Manager, expand Display adapters, right-click the Intel Arc Graphics entry, and select Update driver. Also install all available Windows Updates via Settings, Windows Update.

Frequently Asked Questions