Sorry for my bad English.
Last week, when i tried to check a Whatsapp message, my phone didn't start up. There was no display. Whenever i try to switch it on, it does not start, just vibrate. I tried to repair it by Sony Companion and Sony update software, and after a full process, it says it is updated/repaired, please restart. But still there was no display. Sony software is detecting it and it is charging.
I have also rooted my phone 6 months back. So i tried to re flash, But i am not able root it again because i had unchecked the USB debugging option a few months bk and i am not able to start as the phone is starting up. So i have just re flashed it.
I took this phone to a Sony Service centre; they kept it for more than one day.Then I got a call that I have to pay 80 PERCENT of the cost of this phone for the repair. Next day when i went to get my phone, they just said "its has motherboard problem". So i took it back as i am not able afford 80% cost.
That if my Sony software is able to detect and repair this phone then how can there be a motherboard problem.