: When connected in a certain way, these devices may show up as "BR21 UBOOT1.00 USB Device" . This mode is used for flashing or updating the firmware rather than standard audio playback.
You downloaded a 32-bit driver for a 64-bit OS, or vice versa. Fix: Look for a folder labeled x64 (for 64-bit Windows) or x86 (for 32-bit). Modern BR21 drivers are primarily 64-bit.
audio (like a wireless headset) and do not support full Bluetooth dongle features like file transfer or connecting other peripherals. No "Bluetooth" Toggle
Factories buy the BR21 chip, build a generic plastic housing around it, and sell it without a brand name (white-label products). No brand means no official support website. jieli br21 driver link
Paste this exact string into a search engine alongside the word "driver" to find direct repository links. Step-by-Step Installation Guide
: The Bluetooth pairing and audio reception occur entirely on the chip itself, independent of your computer’s core network settings.
, and choose "Browse my computer for drivers" to manually select a "Generic Bluetooth Adapter". Ask Ubuntu Are you trying to connect a specific device like headphones microphone using this adapter? Jieli BR21 Bluetooth dongle shown as storage device : When connected in a certain way, these
Follow the on-screen prompts and restart your computer when finished. Method B: Manual Device Manager Update (For .inf files)
: It uses standard USB Audio Class (UAC) and HID drivers built into Windows (XP through Windows 11), macOS, and Linux.
: When plugged in, your computer should automatically recognize it as a "USB Audio Device" or "Jieli BR21" in the Sound settings or Device Manager. Common Troubleshooting Fix: Look for a folder labeled x64 (for
: The BR21 is often a "USB Sound Card" with Bluetooth receiving capabilities rather than a pure Bluetooth dongle. If Windows sees it as an audio device but the Bluetooth menu doesn't appear, this is likely by design; it may only receive audio for playback.
⚠️ "driver download" sites that bundle adware. Always prefer ZIP packages containing .inf , .sys , and .cat files.
: Sites like DriverIdentifier host community-uploaded drivers for the Borofone BR21 and other Jieli-based hardware.