boxed unopen unwanted upgrade SONY xperia u/ t mobile ?

Imaging Video camera 5.0 Megapixels Camera Camera zoom Camera flash Connectivity Internet on your phone Mobile broadband 3G Bluetooth GPRS Built-in GPS (Software required for Sat Nav use) Sync with PC WiFi Messaging Personal email Instant Email Picture messaging (MMS) Predictive text Entertainment FM radio Audio player Video player MP3 player Miscellaneous Handsfree included Voice activated dialling Vibrating alert Personal organiser Java enabled Power Talk time (up to): 6 hr 30 mins Standby time (up to): 472 hr Charge time (up to): 2 hr 30 mins call or tex will swap for ps3 350 g control m wire wid game possible thx