[Q] Error on update - XPERIA X10 Q&A, Help & Troubleshooting

Hi,
So I've got an xperia x10, and it was still running 1.6 so I wanted to upgrade it. So I went on the phone, selected software update (in settings -> about phone) and pressed update (didn't use any SE update tools on the PC). It started downloading the update, and after that it rebootet and started installing the update. At the last step however, this comes up:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
And this happens every time I try rebooting the phone, so I cannot start the phone.
Now I've tried several things:
- Repair phone using PC pc companion
Result: No update avaiable
- Update via SE update service
Result: You already have the newest software
- Flash via x10 flash tool ()
It says "Start flashing" but then nothing happens - seems like it doesn't
connect properly
It does seems like the phone boot into flashing mode when I try, at least the SE tools continues after I start the phone in flash mode (screen is just black but the green LED is on).
So is there anyway I can repair my phone? (I'm afraid I cannot go to a store and make them do it, I got the phone from previous workplace)
Thanks for any help!

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I cannot flash via the flashtool you link to I'm afraid. Already tired that, I get this error:
http://forum.xda-developers.com/showpost.php?p=10406093&postcount=169

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AzaraT said:
I cannot flash via the flashtool you link to I'm afraid. Already tired that, I get this error:
http://forum.xda-developers.com/showpost.php?p=10406093&postcount=169
Click to expand...
Click to collapse
Have you tried what it says on the flashtool OP to try if you get that error?

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XperiaX10iUser said:
Have you tried what it says on the flashtool OP to try if you get that error?
Click to expand...
Click to collapse
Yes, still no luck.