Jl-spp Driver — Best

Right-click and select (check "Delete the driver software" if available).

If you cannot get the official driver to work, consider these alternatives: Jl-spp Driver

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\JLSpp\Parameters] "MaxFrameSize"=dword:00000800 (2048 bytes) "CreditsInitial"=dword:0000000a (10 credits) "IdleTimeoutMs"=dword:00007530 (30 seconds) Right-click and select (check "Delete the driver software"