Mijn bluetooth audio apparaat werkt niet meer (normaal)

Question

Hallo,

Als ik mijn bluetooth oortjes verbind met mijn laptop dan heb ik voor 30 seconden ongeveer geluid en daarna stopt die er mee. Daarna heb ik geen geluid meer. Na opnieuw koppelen is hij verbonden maar is het geen audio apparaat meer. ( ik kan hem niet meer kiezen bij uit voer ) of hij is verbonden en blijft de hele tijd verbinding maken en weer los koppelen.

De oortjes JBL LIVE PRO+

Laptop: Acer Aspire A7 15-51G met de mediatek MT7921 bluetooth chip drivers voor deze chip zijn online niet te vinden.

Answer 1

Ik heb de media tek vervangen voor een Intel BE 200 maar het probleem is er nog. Geen geluid en het verbreekt de verbinding. Daarnaast installeerd windows update de drivers van de mediatek.

Answer 2

But why do I have now this problem and not when I frist use the JBL LIVE PRO+ with the laptop back in 2022??

Answer 3

How to Fully Remove Old Bluetooth Drivers (MediaTek MT7921)

1. Uninstall via Device Manager

Open Device Manager

Expand Bluetooth

Right-click MediaTek MT7921 → Uninstall device

Check “Delete the driver software for this device” if available

Reboot

2. Purge Residual Drivers from Driver Store

Open Command Prompt as Administrator and run:

cmd

pnputil /enum-drivers

Look for entries like:

Code

Published Name: oemXX.inf
Driver Package Provider: MediaTek

Then remove them:

cmd

pnputil /delete-driver oemXX.inf /uninstall /force

This ensures Windows won’t reinstall the old driver automatically.

Testing Replacement Cards

If you have access to Intel AX200, AX201, or AX210 cards:

Power down laptop

Swap the M.2 Key E card

Boot into Windows → Install Intel Bluetooth and Wi-Fi drivers

Pair JBL Live Pro+ and test audio stability

No antenna swap needed for these models.

Upgrading to Wi-Fi 7 (Intel BE200 or BE202)

Compatibility Check

Form factor: Still M.2 Key E — fits your laptop

Antenna: Existing dual antennas are compatible

CNVi: BE200 is non-CNVi, so it works in most systems

You do not need to swap antennas unless your current ones are damaged or single-band.

Caveats

Wi-Fi 7 benefits (e.g., 6GHz, MLO) require a compatible router

• Bluetooth 5.4 support is still maturing — some devices may not fully benefit yet

Answer 4

Bram. You’ve done a great job isolating the issue, and your instincts are spot on: the MediaTek MT7921 continues to be a weak link for Bluetooth audio stability especially with true wireless earbuds like the JBL Live Pro+.

Why JBL GO Works but Live Pro+ Doesn’t

JBL GO (1st gen) uses a simpler Bluetooth profile (likely mono SBC or basic A2DP) and doesn’t rely on advanced codecs or dual-channel sync.

JBL Live Pro+ uses dual-channel A2DP, LE Audio, and sometimes multipoint pairing, which are more demanding and expose flaws in flaky Bluetooth stacks—like the MT7921’s.

Should You Replace the MT7921? Yes.

You’ve already proven that:

The 2024 driver still fails

Power saving is off

Resetting the earbuds doesn’t help

The issue is device-specific, not OS-wide

So yes, replacing the MT7921 is the most reliable fix.

Do You Need New Antennas?

Usually not. Here’s the breakdown:

Scenario	Need New Antennas?	Notes
Replacing MT7921 with Intel AX201	❌ No	Uses same M.2 Key E slot and antenna connectors
Replacing with AX210	❌ No	Also compatible with existing dual antennas
Replacing with AX411 or newer CNVi-only cards	⚠️ Maybe	Requires motherboard CNVi support and sometimes different antenna layout

TL;DR: Stick with AX201 or AX210 and you’re safe—no antenna swap needed.

Recommended Cards

Model	Bluetooth	Wi-Fi	Notes
Intel AX201	5.1	Wi-Fi 6	Stable, widely supported
Intel AX210	5.3	Wi-Fi 6E	Future-proof, supports 6GHz if your router does
Intel AX200	5.1	Wi-Fi 6	Older but still solid

All three are M.2 Key E and should drop into your Acer Aspire A7 15-51G without issue.

After Installation

1. Install Intel Drivers: Bluetooth Wi-Fi
2. Reboot and Pair Fresh: Reset your JBL Live Pro+ air again and test both channels

Answer 5

Hi Bram,

My name is Jason and I am an independent advisor and windows user like yourself.

Your JBL Live Pro+ earphones are disconnecting due to known issues with the MediaTek MT7921 Bluetooth chip in Acer laptops. The driver may be outdated, unstable, or incompatible with Windows 11’s audio stack. Replacing the driver or the chip itself is often necessary.

What’s Causing the Problem

The MediaTek MT7921 chip has a history of unstable Bluetooth connections, especially with audio devices like JBL earphones.

After pairing, the device may lose its A2DP profile, meaning Windows no longer treats it as an audio output.

The issue worsens with Windows 11 updates, which sometimes break compatibility with older or OEM-specific drivers.

Fixes You Can Try

1. Roll Back or Reinstall the Bluetooth Driver

Open Device Manager

Expand Bluetooth → Right-click MediaTek MT7921

Choose Properties → Driver → Roll Back Driver (if available)

If rollback isn’t available:

Choose Uninstall Device

  Restart your laptop → Windows will reinstall the default driver
  

2. Install Latest OEM Driver from Acer

Visit Acer Support

Search for Aspire A7 15-51G

Download the latest Bluetooth driver (even if it’s listed under Windows 10)

Install manually and reboot

Do not rely on Windows Update or generic MediaTek drivers—they often lack proper A2DP support.

3. Reset Your JBL Earphones

Press and hold Volume Down + Power for 10 seconds until the LED flashes

Re-pair with your laptop

This clears cached pairing profiles that may be corrupted.

4. Disable Power Saving for Bluetooth

In Device Manager → MediaTek Bluetooth → Properties → Power Management

Uncheck “Allow the computer to turn off this device to save power”

This prevents Windows from suspending the Bluetooth connection.

Long-Term Fix: Replace the Bluetooth/Wi-Fi Card

If the issue persists:

Replace the MT7921 card with an Intel AX201 or AX210 Wi-Fi 6 card

These are compatible with Acer Aspire models and offer stable Bluetooth 5.2

After replacement, install Intel’s drivers:

Bluetooth

  Wi-Fi