Hi all.
Can someone tell me where I can download the "phone sotfware" for the k750i?

The reason is this:
My phone was contected to my pc when it suddenly went dead. I tried switching it back on, but had no luck. When I took it to some celphone repair shops, they told me that "somehow the phone software got wiped" and that I'll need to send it to Sony Ericsson to have the software re-installed.

I've heard that one can "upgrade" the software oneself, so I'm thinking that maybe I don't need to send it in. If I can just get the software I can then load it using a data cable, right?

Any help/advice is appreciated.
Thanks