All you need to know an do and with videos. (link below)
Also make sure that you are in (run as administrator)
Make sure you have the updated Sony Ericsson PC Companion/Update Sevice.
All the drivers are there in the software and Get the right Flashtool/Firmware/Baseband.
If you have the Apps/APKs that you want on your phone you can put them in the Flashtool too, they go in:
Custom/Apps of the flashtool AND THEN AFTER you flashed/rooted/Xrecoveryed the phone just plug in the usb an go for it.
Originally Posted by satanic_soulful
i need semc usb flash driver
And be sure you Thank these Developers for the help.