I have bought Sony Xperia T2 Ultra on 15-4-2014 but after 2 month it started creating lots of problems like Auto on-off, auto switch off and screen gets blank suddenly, etc. I had given my phone to service centre and after 3 rd time of my visit they replaced motherboard of the phone but again issues were the same.again its 5th time I have submitted the phone to the service center and this time i requested for replacement but there is no reply from the Sony Xperia.

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