Follow along with the video below to see how to install our site as a web app on your home screen.
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There is a one touch root if you only want root and don't need CWM. If you are going to use custom ROMs you should use Odin, which is also pretty easy to use. I think I have added links to both in this section. If you need help finding any I'll link the methods I used. (I did the one click first, then used Odin)
[ODIN][TAR] SPH-D710.EL29_CL852097 (EL29 Modem/Kernel/ROM - Full Restore - Rooted) - xda-developers
This is a good method using Odin that will get you the most up to date modem also. This will install CWM and you should be all set to choose a rom from there.