Method A: Using the Installer (easiest)
Method B: Manual INF Installation (if no installer)
No. Avoid manual driver downloads for the Jieli AC4100. Stick with:
If your device isn’t working, the problem is almost always Bluetooth stack configuration or hardware limitations of the AC4100 itself—not missing drivers. Jieli Ac4100 Bluetooth Driver
Typical AC4100 Hardware IDs include:
USB\VID_2D95&PID_6003
USB\VID_2D95&PID_6004
USB\VID_2D95&PID_4100
Write down the VID/PID – this helps find the right driver.
Cause: You are trying to install a 32-bit driver on 64-bit Windows, or vice versa. Method A: Using the Installer (easiest)
Fix: Most AC4100 drivers are universal. Download the 64-bit version specifically. If unavailable, run the installer in Windows 8 Compatibility Mode (Properties → Compatibility → Run this program in compatibility mode for Windows 8).
Since Jieli does not host drivers for end-users on their website (they supply chips to manufacturers, not consumers), finding the driver can be tricky.
Jieli (also written as "JL" or "Zhuhai Jieli Technology") chips are not natively supported by Windows. Method B: Manual INF Installation (if no installer)
If you have a USB dongle with AC4100, it is often rebranded – you need the driver that came with the dongle or a compatible generic one.
| Problem | Solution |
|---------|----------|
| Driver installs but device disappears after reboot | Disable Windows automatic driver update (Group Policy or Registry – search "disable driver updates Windows") |
| Code 10 (device cannot start) | The generic driver is wrong. Try a different CSR/Realtek version |
| Bluetooth icon missing in taskbar | Go to Settings → Bluetooth → More options → Show Bluetooth icon in notification area |
| Can't find any devices | Check that Bluetooth service is running: Win + R → services.msc → ensure "Bluetooth Support Service" is Running & Automatic |