Help Sg s3 dead

[triger]

Hi i have a problem my galaxy s3 died suddenly im running all stock on mg s3 gt i9300 my question is usb jig will help my phone?
Is jtag will help to?
I need your help and advice

Ps i tried recovery and download mode nothing happens rplace charger and battery to

 

[illEatKittyGood]

I literally. Did mine an hour ago....optimized

 

[funkylogik]

If download mode wont work then its definately worth trying a Jig. Theyre very cheap. It will just force the phone into download mode :thumbup:

 

[triger]

Ill try it and see what happens ill cimeback after