Share your experience!
i use flashtool for updating new firmware but wrong firmware (MT27i_6.0.B.3.184_Central Europe.ftf - exactly must be ST25i_6.0.B.3.184 for XU)
i just recognize when done hix hix. So my phone could use touch althought i had recovery old firmware. that so bad. everybody help me.......!!!!!!!!!
download SUS from here
http://www.sonymobile.com/gb/tools/update-service/
install it and connect u r phone when it asks.
it will download the firmware automatically and install it on u r phone.
All the best.