Rooting guide for AT&T Samsung Galaxy S4 SGH-I337 on UCUAMF3 Firmware is now available on howtorootmobile.com. In our previous articles we posted lots of guide to root Galaxy S4 and Install custom recovery. But this guide is only for the AT&T Samsung Galaxy S4 SGH-I337 mobile phone users. Thanks to XDA member jortex who comes with the new 100% working rooting method. Recently new baseband version UCUAMF3 for S4 SGH-I337 rolled out with a new security patch to disable all previous root methods. But thanks again to XDA android development team, who comes again with the new rooting method. So if you recently update you AT&T S4 with this new firmware, then you can follow out below mention guide to root your device again. The guide is not so easy like other rooting tutorial, but no so difficult, yes this guide will take some time to perform.
AT&T Samsung Galaxy S4 SGH-I337 is powered with Snapdragon 600 quad-core processor clocked at 1.9GHz, 2GB of RAM, 5.0″ Super AMOLED capacitive touchscreen plus a 13 megapixel camera. To complete this guide on your device you need a external memory card and memory card reader, internal memory card will not work on this guide. So be ready with your External memory and memory card reader. NOTE:- We never recommend to root the device, but if you want to root youir device to enjoy the benefits of rooting, then remember some point rooting will void your device warranty and if you didn’t follow the below mention instruction carefully and any mistakes during updates can brick your device.
Pre-requisites and Requirements
a) Before following the guide do take the Full Backup of your Android Apps, SMS, Contacts, Call Logs, Bookmarks. Looking for more ways to get the Backup your android device click here. So in case if you lost some of your important data and files in the update or rooting process, then you can easily restore them from your backup file. Read also how to take the backup of WhatsApp messages and restore it.
b) Once the backup files are saved on your device or on your desktop, Enable USB debugging mode on your device, read the guide here how to enable USB debugging mode.
c) Make sure that your AT&T Samsung Galaxy S4 SGH-I337 battery is full charge or near about 60-70% battery level.
d) Download the Latest AT&T Samsung Galaxy S4 SGH-I337 USB drivers on your PC and install it to start the root process. You need these drivers to connect your device with the computer to follow this guide.
e) External Memory Card with Memory card reader.
After following the above mention steps follow the below mention guide one by one to root AT&T Samsung Galaxy S4 SGH-I337. All the above mention steps are very important, so do follow all the steps and do exactly what is told.
Guide to Root SGH-I337 UCUAMF3 Firmware
Step 1. Download the rooting package Root_for_ATTSG4_FM3.rar here and extract the folder on your desktop
Step 2. Download the Terminal Emulator app from the Google Play Store and install the application on your phone.
Step 3. Now insert your phone external micro SD card in the card reader and format it to exFAT on your Windows. Go to “My Computer”. Right click on your SD card that showed up. Click Format. Choose exFAT as the format. Click “OK”.
Step 4. Now copy all the files that you downloaded on step 1 on your Formatted external micro SD card. After that put the card in your device and turn on your phone to get started.
Step 5. From your phone run the Terminal Emulator app, that you install on step 2. And enter the following 3 commands.
Once the process is complete on your device, Open app drawer and look for the SuperSU app there. Or download the Root checker form Google play store to verify the Root access on your smartphone. After that reboot your device once to confirm root is still working after reboot.