Samsung Galaxy Book4 360 S Pen Bluetooth Disconnect Windows 11

The S Pen Bluetooth on your Samsung Galaxy Book4 360 keeps disconnecting – Air Actions gestures stop working and the S Pen button presses are not recognized. The basic stylus drawing works but Bluetooth-dependent features drop out repeatedly. Bluetooth power management on the laptop is the primary cause.

This guide covers Bluetooth power management, S Pen driver updates, and pairing configuration to keep the S Pen Bluetooth connected on the Samsung Galaxy Book4 360 in Windows 11.

“S Pen Bluetooth on my Galaxy Book4 360 dropped every 15 minutes. Air Actions stopped. Disabled Bluetooth power saving in Device Manager and it has stayed connected since.” – Aisyah, presentation trainer from Cyberjaya

Why S Pen Bluetooth Disconnects on Samsung Galaxy Book4 360

Windows 11 Bluetooth power management treats the S Pen as a low-priority peripheral and disconnects it when the system enters any power-saving state. Unlike a phone, Windows PC Bluetooth does not aggressively maintain idle connections. The S Pen also has a short auto-sleep timer to save its own battery, requiring the laptop to re-wake the S Pen Bluetooth when it returns to use.

• Bluetooth adapter power management allowing Windows to disconnect S Pen to save power
• S Pen battery low causing weak Bluetooth signal and frequent disconnects
• Samsung S Pen Bluetooth HID driver outdated – missing auto-reconnect improvement
• Windows power plan Sleep settings suspending Bluetooth during brief idle periods

Fix 1 – Disable Bluetooth Adapter Power Management

Open Device Manager (Win + X). Expand Bluetooth. Right-click the Intel Bluetooth or Qualcomm Bluetooth adapter. Select Properties – Power Management tab. Uncheck Allow the computer to turn off this device to save power. Click OK. This prevents Windows from disconnecting the Bluetooth adapter during idle, keeping the S Pen connection active. Test Air Actions gestures after 15 minutes of idle – the connection should remain.

Fix 2 – Update S Pen Driver via Samsung Update

Open Samsung Update and check All Updates. Install any S Pen Software or Bluetooth driver packages. Samsung S Pen driver updates include improved auto-reconnect logic that re-establishes the Bluetooth bond automatically when the S Pen wakes from its own sleep mode without requiring manual button press or re-pairing.

Check and Charge S Pen Battery

Insert the S Pen fully into the Galaxy Book4 360 slot to charge the S Pen battery. A single S Pen charge takes approximately 40 seconds in the slot and provides several hours of Air Actions use. Low S Pen battery is the second most common cause of Bluetooth disconnects – a full charge ensures stable Bluetooth signal strength for reliable Air Actions operation.

Fix 3 – Re-pair S Pen After Driver Update

After updating the S Pen driver, remove the existing Bluetooth pairing. Go to Settings – Bluetooth and devices, find Samsung S Pen, click the three-dot menu, and select Remove device. Press the S Pen button for 3 seconds to enter pairing mode (LED flashes blue). Click Add device in Windows Bluetooth settings and select Samsung S Pen. A fresh pair with the updated driver establishes a clean connection that holds reliably.

Fix 4 – Enable Bluetooth Auto-Reconnect in Samsung Settings

Open Samsung Settings on the Galaxy Book4 360. Navigate to the S Pen or Pen section. Look for Auto-reconnect or connection maintenance settings and enable them. Samsung Settings S Pen options can keep a background service running that monitors S Pen Bluetooth state and reconnects immediately when disconnection is detected.

Frequently Asked Questions

Why does S Pen Bluetooth keep disconnecting on Samsung Galaxy Book4 360?

Bluetooth adapter power management disconnects the S Pen during idle. Disable it in Device Manager Power Management. Also check S Pen battery level.

How do I keep S Pen connected on Samsung Galaxy Book4 360?

Disable Bluetooth adapter power management in Device Manager, update S Pen driver via Samsung Update, and keep S Pen battery charged by inserting into the slot.

Does Samsung Galaxy Book4 360 S Pen need Bluetooth?

Only for Air Actions button gestures. Basic stylus drawing and writing functions without Bluetooth.

How do I pair S Pen Bluetooth on Samsung Galaxy Book4 360?

Hold S Pen button 3 seconds until LED flashes blue. Add device in Windows Bluetooth settings and select Samsung S Pen.

Conclusion

Samsung Galaxy Book4 360 S Pen Bluetooth disconnect in Windows 11 is resolved by disabling Bluetooth adapter power management in Device Manager and updating the S Pen driver via Samsung Update. Keeping the S Pen battery charged by inserting into the slot prevents signal-loss disconnects. A fresh Bluetooth pairing after driver update establishes a stable connection for reliable Air Actions operation.