Default HELP: Unknown Device Samsung Galaxy Ace S5830i


So I try to flash cwm following a guide, flahsing a zip file. I do that then flash rom. I wipe /system.

When I connect in Download Mode, I get USB Device Unrecognised.

Please Help?

I have tried to install drivers still no luck!
My Device

Sony Xperia E (C1505)

Bootloader Status: Yes

ROM: Cyanogen Mod 11 (4.4.2)