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Solved! Go to Solution.
http://www.sonyericsson.com/cws/support/mobilephones/downloads/xperiax10?cc=gb&lc=en Try using the SE update service application directly instead of PC companion.
I've been using PC Companion with the cable and the phone is connected ok, firewall is off, have made a backup of my data but it's still not working.
http://www.sonyericsson.com/cws/support/mobilephones/downloads/xperiax10?cc=gb&lc=en Try using the SE update service application directly instead of PC companion.
Thanks Dr Chris, it has worked! 🙂