Why isn't my Samsung S4 sgh i337 booting?

[AC Question]

samsung s4 sgh i337 not booting

hello I am raghav, I have a Samsung galaxy s4 sgh i337 and I have flashed a rom through system recovery,then it fail and not booting,but every time I boot my phone up, it shows samsung logo and under that it shows a lock which is unlocked and under it it says custom.I have try to flash in odin many roms but that fail and not installig any custom recovery.what can i do?please give me any suggetion.
Also sorry for my english.(samsung sgh i337 at&t jflteuc kot49ah)

 

[AlphaTango414]

Re: samsung s4 sgh i337 not booting

Use Odin to flash stock firmware.
SamMobile.com is a good place to get stock firmware.