Xperia SL phone won't start up

[Yilkal]

I was updating my xperia sl phone while the update service gave me an error report. Then, my phone couldn't start. I tried to reinstall everything by using the sony update service and pressing the down button, but my phone doesn't respond to anything? is there any other way which I can install the software?

[Thommo]

Before you tried to repair your phone did you hold volume up and the power button untill you could feel 3 vibrations which completely turns your phone off - Have you tried PCC or did you try SUS or it could be that you need to charge your phone for several hours before trying the repair

[Yilkal]

i used sus. and yes, I completely shut down the phone.

[Thommo]

Is your phone been recognised in flashmode you could check this with flashtool or try fastboot