Download "Alpine_EZi-DAB_V1.6_4.85.1.97.107.zip" to your PC.
Connect an empty USB stick to your PC.
Extract the file (i.e. with WinZip / IZArc) onto the USB stick. The file “Alpine_EZi-DAB_V1.6_4.85.1.97.107.dfu” needs to be in root directory of the USB stick.
Safely remove the USB stick from your PC.
Power on EZi-DAB.
Press the button, Select “Settings” > “Software update”.
Insert the USB stick into EZi-DAB’s USB socket and press the “Select” knob. Note: The update process may take around five minutes. Ensure that you don’t switch off EZi-DAB or start your car during the update process or the update may fail.
EZi-DAB restarts automatically once the update is finished.