S5 G900I: Soft Brick or Door Step? topic

Hi guys,
I bought my wife a G900I, flashed it to CM12 5.0.1 and had it working no problem for a week. 2 days ago after watching a FB video the phone rebooted and has seen been stuck in the Boot Loop. Nothing, even the stock firmware seems to want to install.

Tried the following:
philz_touch_6.26.6-klte.tar.md5
openrecovery-twrp-2.8.4.0-klte
CF-Auto-Root-klte-kltedv-smg900i.tar.md5
CWM recovery
Even PIT: SM-G900I_16Gb.pit

Did full WIPE, CACHE, Re-Format via TWRP

Tried the following Stock Roms:
G900IDVU1ANK1_G900ITEL1ANJ1_G900IDVU1ANJ1_HOME.tar .md5
G900IDVU1AND2_G900ITEL1AND2_G900IDVU1AND2_HOME.tar .md5
G900IDVU1ANK1_G900ITEL1ANJ1_G900IDVU1ANJ1_HOME.tar .md5
G900IDVU1ANK1_G900IVAU1ANJ2_G900IDVU1ANJ1_HOME.tar .md5

After flashing via Odin (tried 2x original cables, 3x Windows PCs)

I get the following Errors (see attached). Sceenshot is from Odin 3.07, but I tried 1.85, 3.07 and 3.09 on 3 different computers with 2x different original cables plugged into USB 2.0 at the back of the motherboard - same results, no matter which Stock ROM I choose.

Whats interesting, is that after a few boot loops, you get a Samsung Logo and a sound, but only intermittently. One time it even managed booting into the new 4.2.2 Stock Setup Wizard, but within a second the phone just reboots and keeps boot-looping.

I'm running out of ideas and I thing I tried everything possible.

Any ideas?

Attached Thumbnails