Now you can flash your all xperia cell phones with single flashing tool. You can get it from its official site which link we have shared bellow of post. It is same way for you first you will need to download flashing tool and will need to install it on your pc. Then connect install most needed driver packages which are needed for usb data cable. You have must fresh usb data cable to connect your mobile with your pc. Here you can take in more about the glimmer instrument for Xperia™ gadgets, which is a desktop application that you can use to blaze Sony programming on your opened Xperia™ gadget. This is helpful on the off chance that you've for instance flashed a custom ROM on your gadget, and need to go change to a standard Sony programming. This blaze device must be utilized by Xperia™ gadgets having an opened boot loader. It would be ideal if you note that your telephone still stays opened, and that the guarantee may at present be voided.
You can visit Sony Xperia official for more guides for flashing. Similarly other cell phones you will need to take backup of your data before flashing otherwise you will lose your all of data and your mobile will restored in its original settings.
Now you can download Xperia flashing tool from provided link.
Flash tool download from (Official Site)