Using Platform-Tools exposes your device to your PC. Because r31.0.3 is slightly older, there are security nuances to acknowledge.
: One significant internal change in this release was the removal of the api-versions.xml file from the platform-tools/api/ platform-tools r31.0.3-windows
:
: Run Command Prompt as Administrator. Check if another process (like a phone manager suite—Mi PC Suite, Samsung Kies) is blocking port 5037. Kill the process or uninstall conflicting software. Using Platform-Tools exposes your device to your PC