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Samsung Epic 4G SPH-D700 (Sprint) can be updated to latest Android 4.4.2 KitKat. The upgrade is possible with the help of custom ROM PAC-man. The development team of PAC-man ROM finally introduced Android 4.4.2 KitKat based PAC-man ROM for Samsung Epic 4G SPH-D700 (Sprint). Which means, you can download and install custom firmware PAC-man to update your Samsung Epic 4G SPH-D700 (Sprint) to latest Android 4.4.2 KitKat. Samsung Epic 4G SPH-D700 (Sprint) comes with good hardware spec, hence is capable to run PAC-man smoothly. PAC-man ROM consist various features of Paranoid Android, AOKP and CyanogenMod. The link Im sharing is PAC-man nightly build. The good thing about nightly build is, you will receive update daily and bugs are fixed faster as well as new feature introduced regularly. Continue reading this guide to know how to install Android 4.4.2 KitKat based PAC-man custom ROM on Samsung Epic 4G SPH-D700 (Sprint).
PAC-man comes with various useful customization. Since, PAC-man is based on Android 4.4.2 KitKat, you may like to know whats new on it. Some of the cool Android 4.4.2 KitKat features that you will enjoy is Screen Recording, Tap to Pay (Google Wallet for everyone), NFC emulation for non nfc devices, 14% less memory usage, cloud printing from Gallery, Google Home is the new Launcher, Core System Processes Trimmed, apps are efficient and responsive on all devices, the all new procstats tool details memory use, Full-Lcd Immersive mode, seamless change in resolution during media playback, Phone dialer got local business detection, redesigned Quickoffice and many more.
Please note, not all Android 4.4.2 KitKat feature yet ported to PAC-man ROM.


Another thing you should note, this is nightly build, hence expect some bugs in it. All bugs and issues expected to be fixed as development progress towards a stable PAC-man build.
Warning!
This tutorial is only for Samsung Epic 4G SPH-D700 (Sprint). Don’t try this guide on any other Android device. Also, we (Android Pulp Team) are not responsible for any damage caused due to the instruction given in this page. Try this at your own risk. However, it is very unlikely that your device will be damaged if you follow all the instructions as it is which are mentioned in procedure.  
Pre Requisites:

1. ROM flashing require you to wipe your internal memory data, hence you required to backup your device data. You can follow our ultimate backup guide.

2.  Make sure your device have at least 60% battery power. If your phone shut down during installation then there is good chance to brick your device.You can install an app like Battery Notifier BT Free on your Android device to check it easily.

3. You must have USB Driver Installed for Samsung Epic 4G SPH-D700 (Sprint) in your PC. [Download USB Drivers]

4. Make sure USB Debugging is enabled otherwise its wont be possible to transfer file between PC and Samsung Epic 4G SPH-D700 (Sprint). [Guide].

5. Your device have latest CWM version 6.0.4.4 and up or TWRP 2.6.3.1 and up installed. [General Guide]

If you done everything that we mentioned above then you are ready to follow step-by-step guide on how to install Android 4.4.2 KitKat based PAC-man ROM on Samsung Epic 4G SPH-D700 (Sprint).
File Required(Download by clicking on it)

1. PAC-man For Samsung Epic 4G SPH-D700 (Sprint)  [Filename: pac_epicmtd-nightly-20140514.zip]

1. Google Apps [Filename: pa_gapps-stock-4.4.2-20140207-signed.zip]

How to Install Android 4.4.2 KitKat based PAC-man ROM on Samsung Epic 4G SPH-D700 (Sprint)

1. Connect your device to PC using USB cable and then copy downloaded files to the SD card of your device. Important: Don’t extract any files.

1. Disconnect USB and then turn off your Samsung Epic 4G SPH-D700 (Sprint).

1. Now, boot into recovery mode. To do so, press and hold Volume Down, Camera and Power button together and you should see recovery menu soon. In recovery use Volume Keys to navigate between option and Power to select an option. Alternatively try this: Recovery Mode without Key Combination.

1. Perform a Nandroid backup of your existing ROM that you can restore later if this new ROM not work or you want to go back into your previous ROM. To perform a backup, select Backup and Restore, then on the next Lcd, select Backup again. Go back to main recovery menu after backup is complete.

1. Now, perform data wiping task. To do so, select wipe data/factory reset, then select Yes on next Lcd to confirm your action. Wait few minutes till the data wipe is complete. Now come back to CWM recovery main menu. Select wipe cache partition and after wiping process done, select Wipe Dalvik Cache under advance option to perform Dalvik cache wiping.

1. Select install zip from sdcard, then select choose zip from sdcard. Now, locate the PAC-man Zip file that you copied earlier in Step 1 and select it by pressing Power button. Confirm installation by selecting Yes – Install _____.zip on the next Lcd. The ROM installation will begin.

1. Once the ROM installation process end, repeat the step 6 but choose the pa_gapps-stock-4.4.2-20140207-signed.zip file instead of ROM zip to install the Google apps package.

1. When installation is completed, go back to the main recovery menu and select reboot system now to reboot your Samsung Epic 4G SPH-D700 (Sprint) and boot up into Android 4.4.2 KitKat ROM PAC-man. 

1. Returning to Previous ROM: To go back to your previous ROM, boot into recovery, select backup and restore then restore your previous ROM by selecting it from the list.

Tutorial For TWRP Recovery Users:

1. Connect your device to PC using USB cable and then copy downloaded files to the SD card of your device. Important: Don’t extract any files.

1. Disconnect USB and then turn off your Samsung Epic 4G SPH-D700 (Sprint).

1. Now, boot into recovery mode. To do so, press and hold Volume Down, Camera and Power button together and you should see recovery menu soon. Alternatively try this: Recovery Mode without Key Combination.

1. Create a Backup using TWRP Backup Option.

1. Perform a Factory Reset (this will delete all apps and their settings and game progress). To do this, Tap on Wipe, then at the bottom of the Lcd do a Swipe on the ‘Swipe to factory reset‘ option.

1. Now its time to add zip file for flashing. Tap on Install, then browse to the location where you saved the files and tap on the PAC-man Zip file. Then tap on Add More Zips, and add pa_gapps-stock-4.4.2-20140207-signed.zip. Now at the bottom of the Lcd, do a swipe on the Swipe to confirm flash option to begin flashing.

1. When installation is completed, go back to the main recovery menu and tap on Reboot and then, tap on System to reboot your Samsung Epic 4G SPH-D700 (Sprint) and boot up into Android 4.4.2 KitKat ROM PAC-man.

1. Returning to Previous ROM: To go back to your previous ROM, boot into recovery, select Backup then through Restore option, restore your previous ROM by selecting it from the list.

Congrats! Android 4.4.2 KitKat firmware based custom ROM PAC-man is now running on your Samsung Epic 4G SPH-D700 (Sprint). Now explore the latest Android 4.4.2 KitKat. [Note: If you find difficulties to run root only apps then it may be disabled. Do this then, enable developer settings first (tap the build number 8 times under about device), then enable root under Developer Settings].

Sprint variant of the Samsung Galaxy S4 has received its own version of CF-Auto-Root, a tool designed by Chainfire which can be used to achieve root and open tons of extra features and functions. Use this tutorial to learn how to successfully flash all the required files without losing any data. This tutorial should be completed in under 5 minutes even if you’re not an advanced user.
Sprint Galaxy S4 users are usually rooting their devices in order to be able to flash new Custom ROMs or AOSP Jelly Bean operating systems that will get rid of the Samsung and Sprint bloatware. Custom ROMs, Kernel, new themes and other similar customization files. Such installation are released and created by developers for users who want to improve or test new Android interfaces and ROMs.
Rooting a Sprint Galaxy S4 phone is easy but, first, you will need to take a look at the preparation guide below so that you will manage to flash all the required files at your first attempt. Here’s what you have to know before continuing to the important part of this article:

• this guide will work only with the Sprint variant of Samsung Galaxy S4 model number L720. Don’t try to use this tutorial with any other Android smartphone or tablet, as that might brick the phone and you will then be forced to reinstall stock Android, a process that will remove all the contents from your device.
• after you apply the root, the phone might not want to boot into normal mode, which is why you might still be forced to ‘factory reset’ the S4 using the stock Recovery. You will find more info at the end of this post.
• install the Samsung USB Drivers on your computer. If you already have them installed, then you can skip this step.
• in order to root your phone, you will need to use the ODIN and the phone’s Download Mode. Odin can be found in the tutorial, while the Download Mode can be accessed like this.
• enable USB Debugging from your device’s Developer Options. If this menu is not shown in your phone’s Settings menu, then you will have to tap About Phone and then press 7 times the Build Number section. The Android Developer menu should now be enabled.
• disable Samsung KIES software before starting to root your device.
• disable antivirus programs from running on your PC, these types of applications are usually interfering with ODIN and similar other tools.
• the phone’s battery should have enough power left before discharging completely, as you wouldn’t want for the Sprint Galaxy S4 to power off in the middle of the updating process.
• using this tutorial and CF Auto Root tool will increase the binary flash counter of your smartphone’s firmware, the warranty will be voided because of this. You can restore warranty only if you decide to flash a stock Sprint / Samsung Android 4.2.2 Firmware over the rooted one.
• try to backup some of your most important data before starting the root process, this guide shouldn’t remove any data but, it would be best if you would create copies.
• note that we cannot be blamed in case you brick your phone or, you manage to lose any data files in the process.
• read all the info listed in this article and start rooting only when you’re sure that you can complete it.
• if you cannot finish the root, then you can ask for extra help in comments and we will try to offer you viable solution for any problems that you might encounter in the process.

These were all the preparation instructions that you had to go over before starting to root your device.
CF-Auto-Root tool will not install any custom Recoveries, but you can use the GooManager or ROM Manager applications to flash a recovery image. If you have any other questions, post them in our comments section. Don’t skip any actions that are listed below.

How to root Sprint Galaxy S4 L720 on Android 4.2.2 Jelly Bean using CF-Auto-Root:

1. Download the CF-Auto-Root zip for Sprint SGS4 from here.
2. Extract the contents of this zip and place them all into a single folder on your PC. You will obtain a file named ‘CF-Auto-Root-jfltespr-jfltespr-sphl720′ with the .tar.md5 extension, don’t extract any further than that.
3. Download Odin 3.07 from here. Save the file on PC and unzip it after the download is complete.
4. Power off your smartphone now.
5. Boot the smartphone in Download Mode. After that you can continue to the next step.
6. Launch ODIN exe on your computer.
7. Connect your device to your PC via USB cable. Wait for ODIN to display the ‘added!!’ message before getting to the next step.
   > if Odin doesn’t recognize your Sprint Galaxy S4, then you should try to use another USB port or re-install the Samsung USB drivers, a download link is provided in the preparation guide above.
8. Now, go to Odin, click the PDA button.
9. Browse your PC for the ‘CF-Auto-Root-jfltespr-jfltespr-sphl720.tar.md5′ and load it. Leave all ODIN default settings unchanged and make sure that the Re-Partition one is not enabled.
10. Press the START button whenever you’re ready to start the root of your Sprint Galaxy S4. This process shouldn’t take more than 10 minutes to complete.
11. When all files have been successfully flashed, you will notice that your phone has restarted. Unplug the SGS4 from computer and wait for it to boot into normal mode.
12. Look in the App drawer and check for the SuperSU app icon. That means that the root has been achieved with success.

NOTE: in case ODIN doesn’t complete the install, it shows the FAIL alert or any other errors, then you have to immediately unplug the Sprint Galaxy S4 from your computer. Remove the phone’s battery, re-insert it after 5 seconds have passed and close ODIN. Next, you have to repeat the entire tutorial once again starting with step 5. This time make sure that you don’t skip any steps that I have listed above.
In case you did manage to root your phone without problems and the home Lcd of Android 4.2.2 Jelly Bean loaded successfully, then you can close this guide as you’ve completed all the required steps.
NOTE2: If ODIN says ‘PASS’ but your smartphone is unable to go past the Samsung boot animation, then you have to boot into stock Recovery mode and ‘factory reset’ the Galaxy S4. This means that you will lose installed apps and other contents stored on your device. This process will force the device to boot with the rooted firmware. Here’s what you need to do:

• power off the phone completely by removing its battery.
• re-insert the battery.
• press and hold Volume Up, Home and Power buttons, all at the same time.
• release the buttons when the Lcd flashes and wait for the main Recovery menu to appear.
• select ‘wipe data/ factory reset’ option and confirm the process.
• select ‘reboot system now’ and wait several minutes until your device completes the first boot process with the new rooted Jelly Bean ROM.

This tool did not install a custom Recovery image, which is why you might want to install it yourself using GooManager for TWRP Recovery, or ROM manager app for CWM Recovery. If you don’t know how to do that, then you can check the tutorial guide here.
If you have any extra questions, post them below in the comments section.