This is an app by which you can flash the NC1 stock KK kernel(while on lollipop OC3) that is Safestrap friendly. Then you can enter to SS recovery and flash whatever you need onto your LP ROM. As we all know that SS won't work after flashing a lollipop ROM using muniz_ri method, unless you Odin a KK kernel. All you have to do is download the app and open it up then hit " flash", wait for it to finish then hit "tap to reboot" and it will take you directly to SS recovery. Then you can flash whatever MODs or addons you wish without having to be stuck or having to use Odin to flash the KK kernel. We are not always home by the PC to use Odin. After done flashing your files MAKE SURE TO FLASH THE I337_OC3_Stock_KERNEL_Recovery-Flashable before you reboot in order for your phone to boot up.
-I did NOT make this app and I take absolutely no credit for it. All thanks go to @benwaffle the original creator of this app for our AT&T Note 3 and @carl1961 for remaking it for the S4.
If you have any questions, please let me know.
-Please note that the purpose of this thread is only to help users. No donations needed. A "thank you" is more than enough
Hope this will help.
WARNING: it may or may not work for some of you. It DID work for me with no problem, so use it at your own risk.