app-not-syncing Troubleshooting

App not syncing on the Avantree Relay - Flugzeug Bluetooth Adapter für 2 AirPods oder Kopfhörer | Qualcomm aptX Adaptive, 25 Std. Akku, Firmware-Updates, 3,5mm AUX Klinke Transmitter Sender für Flugreisen & Fitnessstudio

Source: YouTube — repair & troubleshooting videos Confidence: 60% 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: YouTube — repair & troubleshooting videos Confidence: 60% Verified Aug 9, 2026
Difficulty: ★ Est. 3 min

Reinstall the app

Uninstall and reinstall the app to clear glitches.

Source: YouTube — repair & troubleshooting videos Confidence: 60% Verified Aug 9, 2026
Difficulty: ★ Est. 10 min

Replacement parts for the Avantree Relay - Flugzeug Bluetooth Adapter für 2 AirPods oder Kopfhörer | Qualcomm aptX Adaptive, 25 Std. Akku, Firmware-Updates, 3,5mm AUX Klinke Transmitter Sender für Flugreisen & Fitnessstudio

Avantree avantree-relay-flugzeug-bluetooth-adapter-fur-2-airpods-oder-kopfhorer-qualcomm-aptx-adaptive-25-std-akku-firmware-updat-2 Replacement Battery Avantree avantree-relay-flugzeug-bluetooth-adapter-fur-2-airpods-oder-kopfhorer-qualcomm-aptx-adaptive-25-std-akku-firmware-updat-2 Mounting Bracket Avantree avantree-relay-flugzeug-bluetooth-adapter-fur-2-airpods-oder-kopfhorer-qualcomm-aptx-adaptive-25-std-akku-firmware-updat-2 Power Adapter Avantree avantree-relay-flugzeug-bluetooth-adapter-fur-2-airpods-oder-kopfhorer-qualcomm-aptx-adaptive-25-std-akku-firmware-updat-2 Faceplate

← All Avantree Relay - Flugzeug Bluetooth Adapter für 2 AirPods oder Kopfhörer | Qualcomm aptX Adaptive, 25 Std. Akku, Firmware-Updates, 3,5mm AUX Klinke Transmitter Sender für Flugreisen & Fitnessstudio error codes

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