Am using an i337M S4 from Rogers here in Canada and was wondering if it was possible to use ODIN and try out the new leaked 4.4 firmware. Is rooting required to achieve this?
First you must be certain the leak is for i337m model becuase there is the international version and the US version which are both different from the model you have (I have the same but Telus). Now as far as the files, if they are in .tar format then you can flash via Odin, if thet are .zip then you need a custom recovery to flash them. I know for certain you need to root to go the custom recovery route, I think you need to be rooted to flash they system files in Odin also (which if it is a stock rom you are flashing would loose root following the flash). Depending of the root method you choose be aware also that you may trip the Knox counter also, definately if you install a custom recovery. There a number of 4.4 roms for the i337m already that are not stock and are rooted, you may want to look at these also. Most importantly... before you attempt anything read...read ... read... there are pity falls you can end up in if you don't pay close attention......