About iOS 5.1 Software Update
This update contains improvements and bug fixes, including:
- Japanese language support for Siri (availability may be limited during initial rollout)
- Photos can now be deleted from Photo Stream
- Camera shortcut now always visible on Lock Screen for iPhone 4S, iPhone 4, iPhone 3GS and iPod touch (4th generation)
- Camera face detection now highlights all detected faces
- Redesigned Camera app for iPad
- Genius Mixes and Genius playlists for iTunes Match subscribers
- Audio for TV shows and movies on iPad optimized to sound louder and clearer
- Podcast controls for playback speed and a 30 second rewind for iPad
- Updated AT&T network indicator
- Addresses bugs affecting battery life
- Fixes an issue that occasionally caused audio to drop for outgoing calls
For information on the security content of this update, please visit this website: http://support.apple.com/kb/HT1222
You can update through your iOS device without the needed of computer machine by access to Settings -> General - > Software Update.
More information can be found here - > Apple.com