Therefore, when you put it all together, the "JLSpp" device in your Device Manager is .
In short, your computer is likely detecting a nearby (or previously paired) Bluetooth audio device, game controller, or a USB Bluetooth dongle that uses a Jieli chip. This can also happen when a Bluetooth device is improperly disconnected.
Debugging microcontrollers (like Arduino or ESP32) over Bluetooth. Syncing data between older mobile handhelds and computers. Acer Community How to Fix the Missing Driver
The Driver Link includes a consolidated package for major mobile processors:
Have you recently checked your Windows or run a hardware scan and noticed an unrecognized device or a missing driver file labeled JL_SPP ? It is an incredibly common scenario that often leaves users scratching their heads, wondering what this component does and how to get it working properly.
Right-click the downloaded ZIP file and select "Extract All."