FlashTool Error AGAIN!

[Rayday]

Hey guys, I tried flashing my SP back to 4.1.2 but it still has the silly error on Flash tool something about SEMC flash device or something even though I already downloaded ALL the drivers from the program's file it self. Please help!

[Thommo]

Is your phone fully switched off and when prompted are you holding Volume down NOT up or both - Just Volume down then connecting your USB cable

[Rayday]

Yep, Fully switched off and only volume down is being pressed. It just keeps coming up with that error. UGHHH

[Thommo]

Are you running windows 8 /8.1 or a 64bit system

[Rayday]

No. Windows Vista. :?

[Thommo]

Interesting - What version of Flashtools are you using, I know earlier version are now giving errors with new firmware, Also before downgrading were you rooted and was there a issue with your phone ie:Bad kernal or boot sector corrupt as the part which allows Flashing may be corrupted - Try Fastboot and if it boots into fastboot then consider using a img not .ftf to flash your phone

[Rayday]

Un-rooted and I am not sure what version it is. Pretty sure it is the newer one of Flashtool. I'll have to try that fastboot method.

[Rayday]

Someone, please help.

[blackbox]

Do you have Sony PC Companion or SUS installed? If not, then do. A reboot might be in order afterwards.

Sounds like you're maybe missing the USB drivers.

[Rayday]

Yeah, I have Sony update thingy installed and yeah, I have a hunch that I need boot-up files for Xperia SP. SEMC flash device, what does that mean?!