If you have updated your AT&T Samsung Galaxy S4 with the latest
Android OS, the UCUAMF3 firmware, then you are probably looking for a
root method that is suitable with the new software. In that case, you
are in the right place as during the following step by step guide I will
show you how to easily gain root access on your Galaxy S4 I337. The
UCUAMF3 OS had brought a security update to the Android system and all
the previous root solutions aren’t working anymore; that’s why you need
to use the present guide, this being the only root procedure available
so far for the UCUAMF3 platform that runs on your AT&T Galaxy S4.
Root access
is maybe the best operation that can be performed on the Android
devices; this enables access to the internal system of the handset
meaning that you will be able to change settings, improve the
performances, upgrade the battery life, personalize the looks and other
custom operations. The best is that on rooted phones you can replace the
stock recovery for updating with custom ROMs, or for flashing custom kernels (overclock
will be then enabled). As you can see, root is a must have, especially
if you own a high end device like the AT&T Samsung Galaxy S4.
Unfortunately, as you have noticed out, after applying the UCUAMF3,
rooting has been impossible. The security update is the same as the one
added by Verizon, so now you can figure it out why all the previous root
solutions aren’t working for your Galaxy S4 I337. Anyway, fortunately
those of xda-developers had found a new way that can be used when trying
to unchain the system of your handsets. This new root solution is
working perfectly and can be easily performed. Do stay close to the
guidelines from below though because the process is still complex and
risky, especially if you mess things up.
Why? Well basically because gaining root access is an unofficial
operation and because the warranty of your SGS4 will get void while
completing this step by step guide. So be careful and try to apply the
steps according to the guidelines from below – in this way you will be
able to avoid the unpleasant situations. Related to the warranty, yet it
will get void but you will be able to restore it; all you have to do is
to downgrade your handset to stock Android OS, update with an official
OTA release (manually because on rooted phones the official firmware
can’t be OTA received or flashed) or perform an un-root operation.
Then, don’t go any further without backing up the Galaxy S4 data.
Some of the users who have tested this root method had stated that their
data got corrupted or even erased. So, in order to keep your personal
info, data and accounts in safe hands, first of all use backup and
restore apps from Google Play for saving everything that is important or
relevant to you. The best is that after gaining root access you will be
able to make easier backups by using a custom recovery image – you will
be able to make a Nandroid backup and you will be able to save the EFS folder.
Good, now you are almost prepared for the root operation. First
ensure that you can use a computer, your AT&T Galaxy S4 and its USB
cable. On the computer all the security programs must be disabled –
deactivate the security protection. Also, your device must be fully
charged, or at least charge your phone if you notice that there is less
than 60% power left. A micro SD card must be inserted on your S4. Before
starting the root operation format the SD card to exFAT mode.
Furthermore, on your handset go to “Settings -> Applications ->
Development” and enable the USB debugging option. Then, on your computer
install Android SDK (use this guide for setting up ADB on Windows, or learn how to install Android SDK on MAC OS X / Linux). On the same PC the SGS4 drivers must be installed; if not you can get them through Samsung KIES.
Perfect, you are good to go; remember though that this root guide is
suitable only with the AT&T version of the Samsung Galaxy S4 that
runs on stock Android UCUAMF3 firmware. Using this tutorial for rooting a
similar or different smartphone will probably brick your Android based
device. Also remember that the following root app has been developed by
those of xda-developers so thanks them on your way.
How to Root AT&T Galaxy S4 I337 on UCUAMF3 Firmware
- First, on your phone download and install the Android Terminal Emulator app from Google Pay (the download link is here).
- Then, on your computer download the root package from here.
- On desktop make a new folder.
- On the same folder unzip the root package; you will get 4 files.
- Now, connect your handset with the computer via USB cable.
- Select all the files from the new folder and copy-paste them to the phone’s SD card (remember to format it fist).
- Unplug the USB cable.
- On your Galaxy S4 open the Terminal Emulator.
- On the window that opens enter the following commands:” cd /mnt/extSdCard”, “./pwn” and “./script.sh”.
- Busybox and SuperSu will be installed on your AT&T SGS4.
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