Bought there three months and delivered on time, the phone was dying for no reason. Unable to receive calls so since he rebootait alone, locked on the pin code entry screen. After reinstalling software, I thought it was won. But in recent days, again without restarting asked anything. And finally, black screen, impossible to restart. Visibly affected by the bug called sudden death and known by users on many sites. The concern is apparently known to Sony but it is actually fixed. Seller contacted marketplace today to return or exchange. Negative response and returned to an authorized service center with certainly sending the unit Sony for immobilization for I do not know how many days. While it is known by the manufacturer. The seller's response was terse, without any non-commercial. Unfortunate for an article 400 Premium customer of Amazon.com, I am so disappointed and annoyed. Yet this phone deserves all the superlatives of its qualities, one of the best in its class for me. If it does this bug and lack of care and responsibility of sellers
