Originally Posted by SamuriHL
Yes, sure, that's fine. I meant more that he couldn't boot up with the data from CM on the standard stock image after flashing with ODIN. But your point is definitely accepted.
Oh yeah, flashing via ODIN definitely wipes everything in /system and /data. I guess he could use something like Titanium or "adb backup" to backup the apps, flash the I9505GUEUCNF3 image, log back in, and then restore apps one by one. More tedious, but doable. Some things are bound to be lost though like launcher widgets, personal dictionary, etc.