So I was trying to root the samsung galaxy mega from sprint and i saw a form that said to use vcoreroot-v2.tar file and to put it on the device using odin as a pda. i did that and now its stuck in the start up displaying the logo and and just sits there. In the vcoreroot-v2.tar file it contained a boot.img file so if anyone has a stock rom or the stock boot.img for the SPH-L600 from sprint in the usa that would be helpful. i have attached the vcoreroot-v2.tar file for reference. thank you very much!!!