[Q] NJ4 Safestrap Change modem topic

Hi guys,

I recently got my s4 and found out it had a locked bootloader, boo. After a lot of research I was able to get it to install safestrap with Imperium rom. I also had to change my modem and went through the steps to changing it like 3 times and ended up on NJ4. I was previously on MF3 and had great signal but after all these changes and going to NJ4, it seems my signal has gotten worse. I want to know if I can change my modem on the fly with a zip or something faster through safestrap or do I have to go through all the odin steps again in order to change? Its a lot of damn work and very time consuming, so I thought I would ask before doing. I do not think I can even go back to MF3, right? I followed these steps: http://forum.xda-developers.com/gala...oting-t2926642

Thanks for any help,

Jose