app-not-syncing Troubleshooting

App not syncing on the Sony WH-CH520 Kabellose Bluetooth-Kopfhörer - bis zu 50 Stunden Akkulaufzeit mit Schnellladefunktion, On-Ear-Modell - Schwarz | Bis zu 50 Stunden, Bluetooth, Schnellladung

Source: Xiaomi support — smart home troubleshooting Confidence: 80% Verified Aug 9, 2026

The companion app does not sync with the device, often due to a network or app issue.

How to fix App not syncing

Restart the app

Close and reopen the app, and ensure the device is online.

Source: Xiaomi support — smart home troubleshooting Confidence: 80% Verified Aug 9, 2026
Difficulty: ★ Est. 3 min

Reinstall the app

Uninstall and reinstall the app to clear glitches.

Source: Xiaomi support — smart home troubleshooting Confidence: 80% Verified Aug 9, 2026
Difficulty: ★ Est. 10 min

Replacement parts for the Sony WH-CH520 Kabellose Bluetooth-Kopfhörer - bis zu 50 Stunden Akkulaufzeit mit Schnellladefunktion, On-Ear-Modell - Schwarz | Bis zu 50 Stunden, Bluetooth, Schnellladung

Sony WH-CH520 Replacement Battery Sony WH-CH520 Mounting Bracket Sony WH-CH520 Power Adapter Sony WH-CH520 Faceplate

← All Sony WH-CH520 Kabellose Bluetooth-Kopfhörer - bis zu 50 Stunden Akkulaufzeit mit Schnellladefunktion, On-Ear-Modell - Schwarz | Bis zu 50 Stunden, Bluetooth, Schnellladung error codes

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