Default [Q] Flashtool devices folder/list empty

Hello guys,

It's my first post here and I couldn't find this problem anywhere.

I installed Flashtool in my PC and when I flash my device and try to bootload it, Flashtool ask me for a device but the list is empty.
In the device folder there is only a folder named '.git' and I couldn't find Xperia L folder in the web.