About 2 days ago Sony Mobile released Android 6.0 Marshmallow update for Xperia C5 Ultra, but only for the E5533 variant. But today Sony mobile has released the update for all the variants of C5 Ultra including E5533, E5563,E5553,E5506. Now you can fire up your software update app. If you haven't got it, you'll receive it shortly. Xperia C5 Ultra receives the update from the build number 29.2.A.0.122 and Xperia C5 Ultra Dual receives the update from the build number 29.2.B.0.122. So if you've got the update tell us your impressions.