JieLi chips feature a watchdog timer. If the chip enters download mode but does not receive a command from the PC programming tool within a few seconds, it will automatically reset and attempt to boot into its standard Bluetooth application mode.
Uploading new code or custom ROMs to Bluetooth speakers and headsets.
: In some cases, a user reported that their computer functioned perfectly fine, with no issues regarding Bluetooth or USB ports, despite the presence of the JL_SPP device marked as "unknown" in the Device Manager. This suggests that the JL_SPP driver is not critical for core system or basic Bluetooth audio functionality. jl-spp driver
Right-click the device -> Select -> Browse my computer for drivers .
Many JieLi chips require you to hold down a specific hardware button (often marked , play , or connected to a specific pull-up resistor on the board) while inserting the USB cable to force it into "PC Mode" or "USB Download Mode." Step 4: Verify in Device Manager Right-click the Windows Start menu and open Device Manager . Expand the Ports (COM & LPT) section. JieLi chips feature a watchdog timer
Below is an article covering what this driver is, why it appears, and how to manage it.
The JL-SPP driver has a wide range of applications across various industries, including: : In some cases, a user reported that
A Windows update failing to identify the specific proprietary driver for a Chinese-manufactured Bluetooth chip. HP Support Community Technical Report: Driver Issues & Solutions Description JieLi Serial Port Profile (SPP) Common Device ID BTHENUM\00001101-0000-1000-8000-00805f9b34fb Typical Behavior