Finally the wait for Xperia C5 Ultra users seems to be over. Sony Mobile has released the Android 6.0 Marshmallow update for Xperia C5 Ultra dual (E5533) users with the build number 29.2.B.0.122. At the moment update is available only for E5533 variant and in only in Algeria and Italy. It will soon be available for other variants and region shortly. So if you have updated your device feel free to tell us your impression about the update. We will let you know once the other variants get the update.