Originally Posted by ultramag69
Its possible you had a corrupted cf-autoroot image. If you have an MD5 on the stock rom you download, use ODIN 3.04 or 3.07 to flash as they check the MD5 sums before flashing as long as the rom has an MD5 extension - .tar.md5.
FIRST OF ALL:
Thank you very much for helping me!
I got my SGS4 back working!
But it wasn't done with only flashing a stock ROM. I also had to use a PIT file for repartioning the phone.
Another trick (or was it just coincident?) was, i had to use to ORIGINAL usb-cable for flashing. First i used a third-party usb-cable. May this was also an issue.
So in the end, i followed this howto:
i downloaded the PIT-file and the stock firmware, recommended by Adam0524, from further above.
I hope my mistakes while flashing my SGS4 and the solution i found may help others, who run into the same problem. So if you have trouble flashing your S4's and get a FAIL message in Odin, but if you can still enter the download-mode, there will be a great chance to get it back working.
What you'll need is:
Stock firmware for GT-I9505 (about 1,7 GB)
PIT-File for your GT-I9505 (about 3 KB)
ORIGINAL Samsung usb-cable (!)
and relax, everything will be good in the end
P.S.: I'm so glad that my S4 is working again...!!!!!