Once you have the correct and have downloaded the package, follow these steps:
list generic Bluetooth drivers that may match the BR21 hardware ID (BTHENUM0000110B...). USB Modeswitch (Linux) jieli br21 driver link
: No external download is typically needed. You may need to install usb-modeswitch to ensure the kernel recognizes the device's ID ( 4c4a:4155 ). How to Install the Jieli BR21 Driver Once you have the correct and have downloaded
You may see sites like DriverIdentifier listing specific files for " Borofone BR21 JieLi BR17 jieli br21 driver link
: Provides a version (v4.2.8, 0.81 MB) specifically listed for the JieLi BR21.
: Sites like DriverIdentifier host specific driver packages for devices using the BR21 Stereo chip, such as those from Borofone. Understanding Your Device