Galaxy S4 - Bootloop?

Cool! Could you tell us what fixed the issue so that others can try the solution if similar problems occur?

Thanks in advance!
Well, the I got it to boot up again but not with the custom ROM. I had to flash stock firmware again and it unrooted my phone, I guess it would be good if your phone is softbricked and you didn't make a nandroid backup.
 
Well, the I got it to boot up again but not with the custom ROM. I had to flash stock firmware again and it unrooted my phone, I guess it would be good if your phone is softbricked and you didn't make a nandroid backup.
Yes, always make a backup of the device to have a good working copy to return to. Otherwise, a factory restore is your only option to get it back up and running.
 
Yes, always make a backup of the device to have a good working copy to return to. Otherwise, a factory restore is your only option to get it back up and running.
I did, but my stupid SD card got corrupted and the backup didn't work :(
 
I did, but my stupid SD card got corrupted and the backup didn't work :(
I tend to keep a copy on my computer or cloud storage, just in case. Can't ever be to safe with a good copy to transfer onto the device if the sd card goes bad.