Tecknet F33 Handbuch Seite 9

4. There is an echo when using with a Smartphone
Symptom
Volume is too high
5. USB device is not charging
Symptom
Use of non-standard cable
Non-standard USB
6. No sound coming from the car speaker
Symptom
1. Charging Indicator light does not turn on when connected:
Device setting is muted or
audio playback has stopped
Solution
Adjust volume on the
device or car stereo
Solution
Replace with a standard
cable
Stop charging
Solution
Check the device settings
-- 7 --