Mi3 Weird Hard Brick

My mi3 hard bricked and I followed this thread but no luck
http://en.miui.com/thread-73348-1-1.html

Problems :
1. phone was unable to get detected when battery is not connected and pin is connected to testing points (just red light blinks 0
2. phone gets detected when battery is connected but as "USB INPUT DEVICE" and "HID companion" not as Qalcomm HS-USB
3. Tried miflash but no detection

HELP ME PLEASE its completly dead
dont post on flashing through fastboot or recovery
NEED REAALLL HELP