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As long as there is an external power supply to the device, the level of battery charge is not important.
You can take the sat nav home with you and charge it up with a mini USB cable via a computer or any standard charger.
The audio algorithms for a hands-free function at both ends impair the tone quality.- The volume of calls to landlines is normally quieter than the volume to mobile phones.- Do not shout.
The hands-free system works better if you speak at normal volume. These batteries can only be charged up within a specific temperature range of between 0°C and 45°C for safety reasons.
Press the on/off button again briefly to switch the device on again.- Restore factory settings (map updates will be retained):1.
Press the on/off button for at least ten seconds until the device switches off.2.
Garmin receives the data from the digital map specialist company Navteq.Keep your finger on the screen for ten seconds until the end of the countdown.The factory settings on the device have been restored.- If the required improvement has not been achieved, perform the "Recover Device" function in Fresh.If you can't find your phone on this list, it does not automatically mean that your phone cannot be used with the software. Update the software for your mobile with the latest version.2. The speech quality of the hands-free function depends on the model of mobile phone.Remove all the phones that are already connected in the list of connected devices.3. The following measures may help to improve the speech quality:- Reduce the background noise during the call as far as possible.