OK here you go:
Odin is basically just a way to add the software to your phone. it is simple and straightforward as long as you remember a few things
first, and this is important, once you start the process, DO NOT TRY AND STOP IT. DO NOT UNPLUG ANYTHING. You have a better than average chance of totally killing your phone for good.
Second, and this is important, When you are placing a file in ODIN to add to your phone, the only button you need is the PDA button. NOT THE PHONE BUTTON, PDA. You can really mess up the phone by using the wrong button.
Ready to go?
Download ODIN here:
http://dl.dropbox.com/u/17789768/Odin3-v1.85.zip
Extract the files double click the ODIN icon and it will start up
Next, download the file here:
668fc9f366e2.update_SCH-I510_EP4D_to_FP1H.zip ------Thanks to Themortalwombat for the file
next download this file (assuming you still want to be rooted):
http://eclipserom.com/mods/click.php?id=89 ----thanks to Nitroglycerine33 for the root
Now we are ready to start the fun stuff. This will not take too long, maybe half an hour depending on your computer.
You still have ODIN open right? Good.
You already have the samsung drivers on your computer (you can connect it to your computer and transfer files) right? Good. if not install these:
Free Cloud Storage - MediaFire
Shut down your phone, open the back and pull the battery. Connect the phone to your computer, and put it in download mode by pushing the volume down button. Put the battery back in. You should see a yellow triangle on the phone and if you switch to ODIN you should have, under the first blank box, a yellow box that says COM: XX where XX is whatever port you put it into. The only thing that is important is that it is yellow and connected.
Take the first file that I had you download, press the PDA button (not the phone, PDA), and navigate to it. once you find it and you are positive that you have it in the PDA section, hit start. You are now committed. DO NOT UNPLUG ANYTHING.
You will see a whole bunch of crap happening, and a green line going across the white box in ODIN while a blue line will be streaking across your phone (OK streaking isnt a good term since it will take 10-15 minutes)
The phone will reboot when it is done. Let it. CONGRATS you are on fully bloated EP1 (the latest) with the kernel and radio.
Now lets root the phone.
Shut down your phone, open the back and pull the battery. Connect the phone to your computer, and put it in download mode by pushing the volume down button. Put the battery back in. You should see a yellow triangle on the phone and if you switch to ODIN you should have, under the first blank box, a yellow box that says COM: XX where XX is whatever port you put it into. The only thing that is important is that it is yellow and connected.
Take the SECOND file that I had you download, press the PDA button (not the phone, PDA), and navigate to it. once you find it and you are positive that you have it in the PDA section, hit start. You are now committed. DO NOT UNPLUG ANYTHING. (yeah I copied and pasted that and only changed a word, it is the same procedure).
It will reboot, let it.
CONGRATS you now have a fully stock ROM with the exception of it is rooted. Wanna check that? Go into your applications and you should see one called SUPERUSER. If that is there you are good to go.
Easy Right?
ASK QUESTIONS BEFORE YOU START.