Added Android Task Bar : Press Home button to use Android Task Bar.
Fixed channel Recall function
Changed broken Default Weather Addon : Yahoo
Added Default Android Apps.
1.Quick Pic : To see photo/picture files
2.JetAudio Basic : To listen MP3 files
3.MX player : video files.
4.AirDroid : To access U4 box from PC and send file to U4 box
5. Weather & Clock Widget : For Weather
6. F-Droid for Market

http://www.xbmc4stb.net/Firmware/U4/20141219/update.zip : clean all user data.
Due to default Android App upgrading, We don't release unclean version so please backup your data before upgrading SW.