[BR21] Jieli SDK vX.Y Build: 2024-11-15 [BOOT] Core0: M0, Core1: M4 [INIT] HAL OK [INIT] BT stack vX.Y [INIT] DSP ready, sample rate 48kHz [APP ] Ready

A complete "full" driver package should contain:

For developers or those fixing firmware issues, the Jieli USB Dongle 4.0 Update Tool is the primary utility used to flash or upgrade chips like the BR17, BR20, and BR21.

NuGet Package Explorer

Jieli Br21 Driver Full Best -

[BR21] Jieli SDK vX.Y Build: 2024-11-15 [BOOT] Core0: M0, Core1: M4 [INIT] HAL OK [INIT] BT stack vX.Y [INIT] DSP ready, sample rate 48kHz [APP ] Ready

A complete "full" driver package should contain: jieli br21 driver full

For developers or those fixing firmware issues, the Jieli USB Dongle 4.0 Update Tool is the primary utility used to flash or upgrade chips like the BR17, BR20, and BR21. [BR21] Jieli SDK vX