CyanogenMod ROM › Forums › Forum for Common Topics (Generic Topics for all Devices) › TWRP – Team Win Recovery Guides › How to Install TWRP Recovery on Android Using Fastboot › Reply To: How to Install TWRP Recovery on Android Using Fastboot
Hi blukiix, is the bootloader unlocked on your Galaxy S4 ?? If it is not bootloader unlocked then this guide will not work for you.
The ODIN flashing guide only works for .tar or .tar.md5 files.
To flash .img file on a Samsung phone or any phone, the bootloader must be unlocked on the phone.