Default [Q] screen morroring

I received the product and it works really well and is really beautiful but he did not give me the option to mirror.
I checked thoroughly and realized that I must have a 4.2 +
So I put the official Galaxy 3 Rom 4.3. Everything worked well Motzein the mirror.
Now all I put the official rum then we go into titanium backup apps
And started to remove applications and all kinds of junk Ssmsong official Rom Installer!
After I tried to connect again to the mirror Suddenly not working and told me to post:
'' Closed'' due to a hardware failure!
Anyone know what it is and what I accidentally deleted??????
Please note that everything works great only option Suddenly the scanner does not work.
I'd love an answer ...

Or maybe it does not work because Root ???
Please help I'm freaking !!