Originally Posted by gregbradley
you may already have it installed if you have installed flashtool.
I suggest deleting all sony/adb/phone applications on your computer, rebooting, and starting again
even after a fresh install of my computer i can't get it to work.
i searched on google and found out that there are some issues with windows 8.
but after following specific instructions on windows 8 it still isn't working.
then i took an old windows vista computer from the attic and tried it with that.
it atleast asks for drivers but when i get the option to select the drivers myself it instantly disappears because the phone only stays in fastboot for about 10 seconds.
only thing i can think of is installing XP on my old system but is it normal it stays in fastboot for only 10 seconds? then it switches to charging mode.
unlock bootloader allowed is yes!