Default Sony Acro S QHSUSB_DLOAD

Guys, this phone really makes me sick. The phone doesn't want to turn on at all. If I hold volume up + power or Volume down + power or hold all of them together, nothing happens. If I connect the phone to the charger, the red light comes on and stays for a while, then it goes off. If I connect the phone to the pc, it sees it as QHSUSB_DLOAD and after it installs the drivers, it sees it as SEMC FLASHING DEVICE. I tried the flashtool, but it sees is as a 2011 model with debugging off. Help me out please