Many cheap Bluetooth dongles from Amazon/eBay use the Jieli AC4100. They often ship with a mini-CD. That CD contains the correct driver.
No external driver is required, but firmware must be placed under /lib/firmware/ac4100.bin . Jieli Ac4100 Bluetooth Driver
For developers, a specialized Jieli Bluetooth Chip Activator or "Burner" driver is required to flash firmware onto the chip via the USB port. 4. Troubleshooting and Installation Many cheap Bluetooth dongles from Amazon/eBay use the
This is the #1 question users ask. Here is the honest answer: No external driver is required, but firmware must
While the hardware is robust, the software support is where users often hit a wall. Unlike major brands like Intel or Realtek, which have dedicated driver portals, Jieli operates primarily as a B2B (Business to Business) supplier. This means they rarely release consumer-facing drivers directly to the public.