[HARDBRICK?] Galaxy S4 Mini Duos suddenly dead

[gbr3]

Hello
My galaxy (i9192) just went dead. No custom roms or anything. It was working ok until battery discharged. Now it has 2,8V and wont charge.
Ive tried debrick images found here but none of them worked. Only "life sign" form this phone is QHSUSB device that showed up as Qualcomm HS-USB QDLoader 9008 after drivers installation.
Do you have any suggestions what else i can try?

Thanks in advance

 

[Davidich]

Maybe your emmc get corrupted

 

[gbr3]

Just like that?
BTW: if ive got debrick img flashed on the sd card and battery is discharged how should i turn it on? Using wall charger or connect it to pc? Should i press some buttons combination or it should boot itself automatically?

If emmc is corrupted and phone finds boot on sd card shouldn't it boot anyway?