Locate , Bluetooth Audio Gateway Service , and Bluetooth User Support Service from the alphabetical list. Right-click each service individually and select Restart .
Right-click the installer, open Properties , check at the bottom, and hit Apply . Ghost Device Remnants Stale Registry Keys
如果Windows的自带功能没能解决问题，说明我们需要借助更专业的外部工具。这些工具能够扫描你电脑中所有缺失、损坏或过时的驱动，并进行批量修复，是优化JL_SPP驱动体验的捷径。 jlspp driver better
Replace your existing .jar file or Maven/Gradle coordinate.
, a major Chinese semiconductor company that manufactures low-cost Bluetooth chips used in headsets, speakers, and development boards. The "SPP" stands for Serial Port Profile Locate , Bluetooth Audio Gateway Service , and
: "SPP" is the standard Bluetooth Serial Port Profile. It emulates a physical RS-232 serial cable to transmit raw data wirelessly between your computer and the accessory.
Select as the manufacturer, and look for Standard Serial over Bluetooth link or a generic Bluetooth SPP Driver . It emulates a physical RS-232 serial cable to
如果你在更新相关蓝牙驱动程序后，才出现了 JL_SPP 问题，可以尝试回滚驱动版本。
Several users have successfully resolved this issue with third‑party driver tools, such as Snappy Driver Installer (SDI) or DriverDouble. These programs scan your system for missing or outdated drivers and often find a compatible SPP driver that Windows could not locate.
Serial connections over Bluetooth are prone to "glitching" or frequent disconnects. : Press Win + R , type services.msc , and hit Enter.