Target Hardware: The AC692x series is a common Bluetooth 5.0 solution from JieLi (Zhuhai Jieli Technology). It is often used in generic Bluetooth audio modules like the MH-M18 clones.
Theories and Speculations
Execution: Power off the device, insert the TF card, and power it back on. The device will typically enter a "DFU" (Device Firmware Update) mode to install the patch. Method 2: Via Forced Download Tool 692x-updata
To give you a proper feature description, I would need more context: Target Hardware : The AC692x series is a common Bluetooth 5