dear all, i'd like to seek for those who has experience or skills to pls help me fix the problem.

Problem:
- i tried to update service via notebook
- i connect usb cable via usb hub
- when it tried to upload update data to my phone suddenly got the message 'Communication lost....'
- after that i was unable to turn-on my phone again!!
- i search and found out how to recover and follow the step, it didn't work
- now my phone not even recognize usb when i tried to connect to fix problem
- however, i notice that at the power button when i press it (without any cable connect) it has red LED lighting up for awhile, juz wonder can i still had chance to recover my phone?

like mention, if anyone know how to fix this problem pls advise. or should i let sony support center to fix it. thank you in advance and appreciated for all advise.