UGREEN 4-Port USB 3.0 Hub USB Verteiler Multiport Adapter — Error codes & fixes
Troubleshooting guide for the UGREEN 4-Port USB 3.0 Hub USB Verteiler Multiport Adapter. Diagnose an error code and find the fix.
Screen flickering
screen-flickerThe screen flickers, often due to a refresh rate issue, a loose cable, or a failing panel.
Source: UGREEN support — hub & dock troubleshooting
Confidence: 75%
Verified Aug 9, 2026
Keyboard not working
keyboard-not-workingThe gaming keyboard does not respond, often due to a driver issue or a connection problem.
Source: UGREEN support — hub & dock troubleshooting
Confidence: 80%
Verified Aug 9, 2026
USB port not working
usb-not-workingA USB port does not recognize devices, often due to a driver issue or a faulty port.
Source: UGREEN support — hub & dock troubleshooting
Confidence: 80%
Verified Aug 9, 2026
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