Keep a firmware flashing tool open (like Jieli_ACxxx_Tool.exe ) before plugging in the device. The tool holds the device in programming mode.
Open and expand the Universal Serial Bus controllers section.
Before downloading files from unfamiliar websites, let Windows search Microsoft’s official driver catalog. Plug your Jieli AC4100 Bluetooth device into your computer. Press the to open Settings .
Windows 10 and 11 require drivers to be digitally signed. If you encounter an error about “driver not signed,” you can temporarily disable driver signature enforcement:
Jieli AC4100 Bluetooth Driver: The Ultimate Installation and Troubleshooting Guide
Mei exchanged a look with her grandfather. “It has a good heart,” she said.
The Ultimate Guide to the Jieli AC4100 Bluetooth Driver: Installation, Troubleshooting, and Updates
The Jieli AC4100 is a highly popular, low-cost system-on-a-chip (SoC) manufactured by JieLi Technology. It powers millions of budget-friendly Bluetooth devices worldwide, including wireless earbuds, portable speakers, USB dongles, and car audio adapters.
Write down the – this helps find the right driver.
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