I Bricked My Phone

Hi everyone, as you can see in topic I bricked my phone. or at least I think I did it.

To make a long story short - my brother gave me Xpera T, I installed cm12 but had problems with gapps (google apps has stopped), then I tried to remove it to have clean install and got the situation in recovery "can't mount cache/system..."

Then I tried parted /dev/block/mmcblk0 mkfs ext2
But, after I did it I restarted phone and now I can't turn it on. There is no any sign it's alive. Like a brick :-/

When I connect phone to computer and try power+up it won't enter recovery mode so I can't use ADB or Fastboot.
Only trace that phone exists shows dmesg command:
[ 135.031450] usb 3-5: new high-speed USB device number 9 using xhci_hcd
[ 135.196087] usb 3-5: New USB device found, idVendor=05c6, idProduct=9008
[ 135.196095] usb 3-5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 135.196100] usb 3-5: Product: QHSUSB_DLOAD
[ 135.196103] usb 3-5: Manufacturer: Qualcomm CDMA Technologies MSM
[ 135.196734] qcserial 3-5:1.0: Qualcomm USB modem converter detected
[ 135.197345] usb 3-5: Qualcomm USB modem converter now attached to ttyUSB0

So, is there any hope that I coul'd repair it, or the garbage is the right place for it?

Thank you!