* UI (User interface) improved
* web browser faster with featureuri we
* graphics performance better
* Battery lifetime improved
* stereo sound in video
* SNS integration in Phonebook
* interface imbunanatita regarding switching between applications si completion their
* Unlock your phone by face recognition User
* Monitoring consumption data integrated
Although Update your software It is available both OTA and through ChooseWe recommend that you upgrade by OdinAs it is much faster and is more stable. In addition, you here and a tutorial on how to upgrade your Samsung Galaxy S2 to ICS.
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For rootarea this update and installing CWM RecoveryWe recommend using custom kernel Speedmod SGS2 for ICS (Improves stability and lifetime of the battery), available for download on XDA Developers.