STATUS: SOLVED SEPTEMBER 8TH. 

Some iPhone customers are having problems downloading Zipp/Zipp Mini speaker firmware via Libratone App for iPhone. Download stops at approx. 60%.

We are currently working to solve this problem and expect to have a solution during this week. 

We apologize for any inconvenience this might cause you, and thank you for your patience. 

Meanwhile - if you have access to an Android smartphone - feel free to download and upgrade firmware via Libratone App for Android.