1. Restart your computer
Restarting your computer may seem simple but sometimes it can bring unexpected benefits, especially in stabilizing your system and resolving software conflicts... Once your computer is back to normal operation, you can plug in your headphones again to check the audio signal.
2. Clean the plug jack
After prolonged use, dirt may restrict the contact pins of the plug jack or you may notice the headphone jack feels slightly loose when plugged into the laptop. In this case, try plugging it in gently and slowly until you hear sound. If necessary, try plugging the headphones directly into another laptop or computer.
At the same time, you should also check if the volume button on the speaker (external speaker) is turned down to the lowest level. Click on the speaker icon in the bottom right corner of the screen to check if the volume is in mute mode or not...
3. Check sound settings
Step 1: Right-click on the speaker icon in the system tray, then select Volume Mixer.
Step 2: Check if any of these boxes are in mute mode. If so, you need to uncheck them.
Additionally, you should also check additional settings in the Playback devices section.
Step 1: Right-click on the speaker icon in the system tray and select Playback devices.
Step 2: The Sound dialog box appears, right-click on the device name and select Properties.
Step 3: Check the Device usage section and switch to Use this device mode. Click OK, exit, and plug in the headphones again.
4. Try reinstalling audio driver
Step 1: From the user interface, press Windows + R, type devmgmt.msc into the Run dialog box, and press Enter or OK
Step 2: In the Device Manager window, click on the arrow next to the speaker icon. In the drop-down list, right-click on the audio driver name and select Uninstall device.
Step 3: After removing the old audio driver package from the device, scan for hardware changes by right-clicking on Audio inputs and outputs and selecting Scan for hardware changes.
5. Update to the latest driver
After a period of use, drivers may conflict with certain applications unknown to us, or outdated audio drivers may be incompatible with the current version, causing the computer to lose sound. To resolve this issue, we can reinstall the audio driver for the computer.
Step 1: In the Device Manager interface, double-click Sound, video and game controllers, right-click on the audio driver name, and select Update Driver Software as shown below.
Step 2: The driver update dialog box appears, where you will have 2 options: Search automatically for updated driver software: Automatically update drivers
Explore my computer for driver software: Delve into your computer if you've downloaded the sound driver package.
Thus, here are the ways to fix a laptop not recognizing headphones that readers can refer to for application and troubleshooting of this unwanted issue. If it's a software issue, we can handle it easily, but in the case of hardware failure, your only option is to take it to reputable repair centers for technical inspection. If you've just installed Windows 10 and it's not recognizing headphones, you can refer to how to fix laptop not recognizing headphones after installing Win 10 here.
