Jieli AC4100 USB transmitters run on the 2.4GHz wireless spectrum. USB 3.0 ports generate severe electrical radiation that directly interferes with 2.4GHz signals. If you are using an external Jieli dongle, plug it into a (usually colored black, not blue) or use a short USB extension cable to move the dongle away from the computer chassis. Specifications Summary
If you encounter errors like the "Yellow Triangle" or "Device Not Found," use these steps: 1. Manual Driver Update Open . Locate the Jieli AC4100
Because Jieli is an upstream component supplier, they rarely provide direct-to-consumer download portals for individual drivers. Instead, you can source and install the correct driver using the official methods below. Method 1: Use Windows Update (Recommended)
Expand the section (or look under Other Devices if it is unrecognized). Jieli Ac4100 Bluetooth Driver
Force the driver update manually and choose "Let me pick from a list of available drivers on my computer" → "Have Disk" → point to the Jieli INF file.
Jieli_USB_Driver_v3.2.1.zip or JL_Driver_Setup.exe .
You are trying to install a 32-bit driver on 64-bit Windows, or vice versa. Jieli AC4100 USB transmitters run on the 2
To flash this chip:
Check the box that says and click Uninstall .
Right-click the problematic Jieli/Unknown device and choose . Select Browse my computer for drivers . Specifications Summary If you encounter errors like the
Common versions include 6.3.9600.16384 for Windows 10 and 6.1.7600.16385 for Windows 7.
When you connect a device containing this chip to a PC, the operating system requires a specific driver to translate commands between the Windows audio subsystem and the Jieli hardware. Symptoms of Missing or Corrupt Jieli Drivers