Sony released a new firmware. Be cautious if you have the Japanese version on the european device installed looks like it will install the European firmware again.
The link to the japanese firmware package is: http://info.update.sony.net/PA001/N...tents/0002/NW-A100_0001_V1_10_04_NW_WM_FW.UPG you can manually download the file. Put it on the internal storage and then start the updater (with WIFI disabled)
WOW, such a big file (800MB). Any changes log or release notes?