If your PC still won't see the phone, you can force a driver refresh: Open on your PC. Find Portable Devices or Universal Serial Bus devices . Right-click on (or "Unknown Device") and select Uninstall device .
: When you install this tool on your PC and connect your phone, it automatically detects the device and installs the necessary drivers. skachat draiver dlia lumia 520
If you are on an older system (like Windows XP or Vista) or need specific offline files, third-party sites host these drivers. Use caution when downloading from non-official sources: If your PC still won't see the phone,