Default [Q] Stuck at Galaxy s4 boot logo with Recovery Booting in the top left corner

Hi,

I am trying to fix my friends SGH-m919 after he dropped it in some water. It was quickly picked out and dried out with rice.

The phone only booted to the Galaxy s4 logo screen and got stuck. I can get into download mode and I tried flashing the stock tar file. Now it gets stuck at the logo screen but says "Recovery Booting" at the top left corner.

I tried flashing some recoveries via odin, but nothing seemed to work and cannot get into recovery mode.

The phone was bone stock.

Any ideas left or is this phone a goner?