In start I want to apologize all of you for mistakes in my message (If are).
Last week i got xperia arc s from my friend cause he have problem with that phone.
He told me, when he tried to update from 2.3.4 gingerBread to 4.0.4 Ice cream sandwitch by Phone updater in settings, phone has turned off and nothing was showed on the screen. I tried to turn on the phone, but only reaction is little vibrate when I hold power and menu buttons a lot of time.
Holding only power button don't give reaction.
So I tried to restore software by Update Service (licenced software to update/restore software from sony), but that program told me The phone have installed the newest software.
I downloaded flashtool and flash arc s using no-branded roms. I flashed 2.3.4 and 4.0.4 but it gave me no effect. I have second xperia arc s in home (my brother's phone) I tried to change battery but battery is ok.
Do you have any idea what can i do to revive that phone?