Hi, I got a brand new sound tower (DCM580) from a local philips dealer. When I was in the shop, I tested my iphone 4s with the device and it was working fine. When I unpacked a brand new set at home, it was charging my device for 5 minutes while playing to the music - everything was perfect. I started to play with volume, options, switching sources etc and after removing the phone and putting it back, iphone does not charge anymore.

Checked with Iphone 4s, 4g and ipod shuffle, all running latest available ios (5.1.1).

I checked my tower's software version and it seems that it is V45.

Should I return the tower to the dealer or is there a magic button combination to enable charging?