Help! How to find build number in bricked phone

[Lehigh f]

I've looked everywhere for this specific questions, I have a Samsung Galaxy s6 and I'm a newbie to rooting so of course something went wrong. So now I can't turn on my phone and custom binary frp or something is displayed. All I need to know us the build number to fix some things. Mty carrier is sprint and I got the phone yesterday. I don't want to end up with a fancy paperweight

 

[Tech-Newb]

Go to XDA and get help from there, they are experts on mods and roots.

Posted with ❤Love❤