The new Xtreme 5.0a/b is capable of creating MS25 validation. What exactly does that mean? When I dl the firmware, do i have to click on the "Make X50.bin Report as MS25" before flashing my Sammy? Can anyone explain?

Thanks

I just replied to your other thread asking if you need to use the bat-files before flashing. Again, you do need to use one of them to inject your key from your current firmware (unless using X360SAM or manually hex-editing your firmware - I always use the included bat-files, and I have a 100% success-rate).