Is your Xperia having issues? Try repairing it with Sony's PC Companion or Sony's Update Service first before posting.
Remember to back up your data before proceeding and do internal wipes [factory reset under settings] as well.
Use the latest FlashTool to flash FTF files if PCC and SUS fails to recognize or repair your Xperia. Full tutorial on how to use FlashTool.
The Google Nexus 5 is regarded as having everything an Android user needs or wants: timely updates, … more
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