S5 G900F stuck in a bootloop

somebody can tell me step by step what to do? I'm stuck in a bootloop and i tried to install the stock firmware with odin but it keeps failing :( Odin says that after i started it, everything is ok and i get a "pass" in Odin but it just keeps rebooting :( i only can get into download mode, not into recovery mode :( And when the phone starts to boot, i just get this black screen with the samsung galaxy S5 on it and in the top corner in blue letters "recovery booting ..." and then it goes black and restart ...
Can anybody help me :( i'm kinda desperate

from xda-developers http://ift.tt/2ao1pgl
via IFTTT