Cant connect Samsung s2 plus to pc

Hello frinds,

I cant connect my s2 plus to pc
Tried reinstalling kies and drivers

When i try to connect i get a message "SAMSUNG mobile USB Composite Device Faild"
now when i connect to pc, it only charing, not even showing usb option

I think there is problem with PhoneUtil

I think i changed it for some purpose

How to configure it ?
I have options
UART
Modem
PDA

USB
MODEM
PDA

Or any other problem ?

Please help me
Thanks

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