Used Eleflash to install Flyme. Don't know how to go back.

So yeah, as the title says.
I installed eleflash tool from their forum and installed flyme os.
Now i don't know how to go back cos the same elflash doesn't recognise the device as elephone...
My elephone was rooted already and i don't really know how those things work.
Could someone help me to go back to the original software?