Smart Switch Mobile lets you switch from your old GALAXY to a new GALAXY with ease. Just lean them against each other then tap on the screens; you can instantly transfer your personal data from your old GALAXY to your new GALAXY.Use this app if you are transfering from Samsung Galaxy S series(with IceCream Sandwich or JellyBean OS and NFC) to new Galaxy device. If you are looking to switch from a non-Samsung device to a supported Samsung device, please use the "Smart Switch PC and Samsung Smart Switch Migration app". For more information, go to "http://www.samsungsmartswitch.com".*Supported GALAXY Device :Hardware : Galaxy S2/S3/S4, Galaxy Note1/2 (NFC, WIFI Direct should be supported)Software : upper Android OS ICS(4.0)*Supported Data :Contact, Schedule, Memo, Message, Photo, Music, Video, Document, Wallpaper( Wallpaper is available from OS JellyBeanPlus(4.2) )Document type - DOC,DOCX,PPT,PPTX,XLS,XLSX,PDF,HWP,GUL*Constraint :Unsupported field Contact - Ringtone, Message alert, Vibration pattern Schedule - Sticker, S-Memo, Image, Alarm, Group : MMS does not transfer depending on devices. :Local Data Only (Google & Samsung Account data does not transferred.) :If that does not work on Galaxy S2 OS 4.0.4 version, after the other device's WIFI is connected, then try again.