This is a fairly easy way to get root WITHOUT tripping the flash counter that will void the warranty. If you don't care about tripping the counter then you can get root other ways.
You can get ODIN here
and the drivers for the SPH-L710 so ODIN can detect your phone can be found at Samsung's site. Click on the Manuals & Downloads tab at the bottom and then on Software for the latest driver.
First download the stock odin tar that has a rooted system image injected into it:
SPR Image (JB 4.1.1)
Perm Mirror 1: Download - root66_SPR_L710VPBLJ7.7z
SPR Image (ICS 4.0.4)
Perm Mirror 1: Download - L710VPALI3
Old SPR Image (ICS 4.0.4)
Perm Mirror 1: Download - L710VPALEN
Extract the root66_SPR_L710VPALI3.tar from the .7z file you downloaded.
Put phone into download mode [ with phone off, hold vol. down + home + power ], connect to computer and open Odin.
once in odin click the PDA field and select the root66_SPR_L710VPALEN.tar you downloaded.
Leave Auto Reboot and F. Reset Time checked.
click start and
when done let phone reboot.
If you have issues flashing with Odin please ensure you are using the microusb cable that came with the phone, users have had issues using other cables.
If you just want a stock, rooted phone with no custom recovery, no plans to flash custom roms, etc. then you can stop HERE.
Third, (optional) - on a Jelly Bean release, loading a non-stock recovery will trip your flash counter.
If you want to get clockworkmod recovery loaded so you can flash whatever you want, nandroid, etc then continue on....
Once rebooted you can essentially follow this thread to load the clockworkmod recovery but make sure you use METHOD 1 or you will trip the counter. As long as you flash the recovery using the dd method with adb (or use terminal emulator from the play store) then you will NOT trip the flash counter. If you use ODIN to flash a custom recovery you will trip the counter.
The standard CWM recovery is here and the touch recovery is here.
If you've made it this far with a stock, rooted phone with cwm and you don't want to flash a custom rom (which will do its own de-bloating) you can check out my Aroma installer based De-bloater to easily get rid of bloat system apps you no longer want to see. Simply flash in CWM like anything else and you will be presented with a menu system to choose what to remove. If you are unsure it is safe to pick Recommended and a decent de-bloat.
I understand on Sprint there are OTA updates available. If you use this root method and want to move to an OTA update you basically have two options.
1. After using this method you can grab voodoo OTA rootkeeper from the play store and apply the update straight as it is from OTA. The rootkeeper app should keep root for you after the update is applied.
2. Find someone who made a CWM flashable update, potentially with certain pieces removed and simply flash it in CWM.
To get the injected root system image I followed pieces of
so thanks to those guys. Neither of those worked out of the box needed a bit of tweaking.