There is a major design flaw in Sony Xperia Z charging port design, the socket in Phone is AB Type and charger is Micro B type a described here
https://en.wikipedia.org/wiki/USB#Host_and_Device_interface_receptacles
Although it works on paper, this improper shape allows connector to be inserted in wrong way(upside down), which leads to damage and virtually bricking the phone as you can’t charge it.
There customer service is pathetic and they don’ t understand an inch of problem faced by the customer . they are as good a zombies. CCR kept iterating physical damage is not covered in terms and condition, I asked him a defective design is covered . They had no clue. For god sake this is supposed to a standard universal micro USB port not something custom it is supposed to work like a standard port.
They have charged 11000(33% of cost) for replacement which is nothing but their disregard to customer. No body knows how to repair this device and they are fleecing customers, I some cases they asked for 50% of cost.
World wide people are suing these guys. Sadly, we live in India. This is a shame on Sony . Never gonna let any one buy Sony in future where ever possible.