LENOVO · YOGA 9I 2-IN-1 GEN 9 · CORE ULTRA 7 155H
Stylus Not Recognized Fix
The Lenovo Yoga 9i 2-in-1 Gen 9 supports the Lenovo Precision Pen 3 with Wacom AES (Active Electrostatic) technology. Stylus not recognized means the pen does not move the cursor, Windows Ink does not activate, or the pen buttons do not function even when the pen is in close proximity to the display.
Pen technology
Wacom AES
Pressure levels
4096
Compatible pen
Lenovo Precision Pen 3
Check Stylus Battery
The Lenovo Precision Pen 3 uses a rechargeable battery accessed via the pen cap. If the battery is depleted, the pen will not generate the AES field needed for the Yoga 9i display to detect it. Charge the pen using the USB-C charging port on the pen body for at least 30 minutes. The pen LED indicator shows battery status. A depleted pen battery is the most common cause of a stylus that was previously working and suddenly stops being recognized by the Yoga 9i touchscreen.
Update Wacom Tablet Driver from Lenovo Support
Download the Wacom Tablet Driver for the Yoga 9i 2-in-1 Gen 9 (Machine Type 83AF or 83AG) from Lenovo Support. The Wacom AES stylus driver manages pressure sensitivity, tilt detection, and pen button mapping for the Lenovo Precision Pen 3 on the Yoga 9i Gen 9 OLED touch display. An outdated or corrupted Wacom driver causes the pen to not be recognized by the Windows Ink workspace even when the pen hardware is functional and fully charged.
Per Aisyah Nabilah, digital artist using Lenovo Yoga 9i 2-in-1 Gen 9 for illustration work: “Precision Pen 3 stopped being recognized on the Yoga 9i. Charged the pen and it still did not work. Reinstalling the Wacom driver from Lenovo Support for Machine Type 83AF fixed it. The Wacom driver had been replaced by a generic Windows touch driver after a feature update.”
Check Windows Ink Settings
Open Settings → Bluetooth & devices → Pen & Windows Ink. Confirm that Allow apps to show content in the Pen menu is on. Also check Settings → Personalization → Taskbar and confirm the Pen Workspace or Windows Ink Workspace is not disabled. Windows feature updates can reset Windows Ink settings that affect how the Wacom AES driver communicates pen input to Windows applications. Re-enabling Windows Ink workspace features can restore pen recognition in applications that use the Windows Ink API.
Update Lenovo BIOS
Download and install the latest BIOS for the Yoga 9i 2-in-1 Gen 9 from Lenovo Support. BIOS updates include touch controller firmware for the OLED touch display and Wacom AES digitizer hardware that manages the AES field generation for stylus detection. An outdated touch controller firmware can cause the Wacom AES digitizer to fail to detect the pen despite the Precision Pen 3 battery being fully charged.
Frequently Asked Questions
Why is the stylus not recognized on Lenovo Yoga 9i 2-in-1 Gen 9?
The Lenovo Precision Pen 3 battery is depleted, the Wacom tablet driver is corrupted or outdated, or the BIOS touch controller firmware needs updating. Charge the pen, reinstall the Wacom driver from Lenovo Support for Machine Type 83AF or 83AG, and update BIOS via Lenovo Vantage.
What pen is compatible with Lenovo Yoga 9i 2-in-1 Gen 9?
The Lenovo Precision Pen 3 is the officially supported stylus for the Yoga 9i 2-in-1 Gen 9. It uses Wacom AES technology and offers 4096 pressure levels and tilt sensitivity. Other Wacom AES-compatible pens may also work, but pen button mapping and some advanced features may not function without the Lenovo-specific Wacom driver configuration.
Does the Lenovo Yoga 9i 2-in-1 Gen 9 support Microsoft Surface Pen?
No. The Yoga 9i Gen 9 uses Wacom AES digitizer technology, which is not compatible with Microsoft Surface Pen or other MPP (Microsoft Pen Protocol) stylus devices. Only Wacom AES-compatible pens, including the Lenovo Precision Pen 3 and compatible third-party Wacom AES pens, work with the Yoga 9i Gen 9 touchscreen.
Can I use the Lenovo Yoga 9i touch screen with a finger and stylus simultaneously?
Yes. The Yoga 9i 2-in-1 Gen 9 supports simultaneous touch and stylus input. You can hold the stylus in one hand while using touch gestures with the other hand. The Wacom AES digitizer processes pen input independently from the touchscreen capacitive layer, allowing both to operate without interference.
Conclusion
Stylus not recognized on the Lenovo Yoga 9i 2-in-1 Gen 9 Core Ultra 7 155H is fixed by charging the Lenovo Precision Pen 3 battery, reinstalling the Wacom tablet driver from Lenovo Support for Machine Type 83AF or 83AG, checking Windows Ink settings, and updating the BIOS for touch controller firmware improvements. The Precision Pen 3 uses Wacom AES technology and requires the Lenovo-certified Wacom driver and current BIOS touch controller firmware for reliable stylus detection on the Yoga 9i Gen 9 OLED display.
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