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Update AT&T Galaxy S4 I337 with SlimBean (build 7) JB 4.2.2 Custom ROM

Slim Bean build 7 has been released for the AT&T version of the Samsung Galaxy S4, so for those interested, I will be showing you how to install the Jelly Bean 4.2.2 based custom ROM on your smartphone. SlimBean ROM comes with great features, apps and capabilities that cannot be found in the default version of the Android 4.2.2 OS, so if you want to customize, optimize and improve the Jelly Bean experience that runs on your Galaxy S4 I337, learn how to apply the latest build of Slim Bean custom software.

Slim Bean is not just another custom ROM based on latest version of Android OS. The platform is a mixed system that brings features from other firmwares like CM10.1, AOKP and ParanoidAndroid, so you have all the reasons for trying or testing this update. Furthermore, this is the latest version of SlimBean – build 7 that has been released for your AT&T Galaxy S4 by the SlimBean team and the ROM is stable, without bugs or reported issues. Everything is working perfectly so you will be enjoying a more stable, fast, customizable and improved Jelly Bean experience.

Also, by flashing the SlimBean OS, your Samsung Galaxy S4 I337 will gain speed and the battery life of your phone will be upgraded. Since this is a custom ROM you will have access to the internal system and you will be able to change default settings, remove in-built programs, add new tools and so on.

But for being able to receive all that you will first have to root your phone. By rooting you will ensure that the factory restrictions and default settings are being removed. When installing a custom ROM, the system needs to be unchained because the firmware has to access some internal programs and settings. Then, you will have to flash a custom recovery image, like CWM recovery, as by using this tool you will apply the update on your smartphone.

Now, after gaining root access, installing a custom recovery image and updating with a custom ROM you can also consider in overclocking your Galaxy S4. By changing the maximum CPU frequency you can bump the speeds and improve the performances.

Anyway, regarding to the up-mentioned operations, you should know that the warranty of your AT&T SGS4 will get lost. This is happening due to root access, though all the procedures mentioned are unofficial ones. The good news is that the warranty can be anytime restored; all you have to do is to downgrade your S4 to stock Jelly Bean 4.2.2 OS or to update your device with an official release of the Android firmware – manually as on rooted systems the OTA updates can’t be received or applied.

Backing up the Galaxy S4 data before installing the Slim Bean custom ROM should be a good idea as on the flashing process a wipe will be required. That means that everything that’s stored on your phone’s internal storage memory will be erased – text messages, call logs, EFS, market apps, internet settings and so on. So, use suitable backup and restore apps and save the same. Since your device should be rooted and installed with a custom recovery image, use the recovery and make a Nandroid backup for saving the current ROM.

On the flashing operation a computer will be needed along with your SGS4 I337 and with the phone’s USB cable. On the computer you will download the firmware, then you will flash the ROM via recovery mode. So, enable the USB debugging option on your smartphone, deactivate the security tools and protection from the computer and charge the battery of your device if there is less than 60% power left. Other than that, just read all the lines from this guide, stick to the steps from below and everything will be fine; else you can end up in bricking your device.

How to Update AT&T Galaxy S4 I337 with SlimBean (build 7) JB 4.2.2 Custom ROM Firmware

  1. Download the Slim Bean build 7 JB 4.2.2 firmware from here.
  2. Download Google apps package from here.
  3. Save the file on your computer – desktop – and don’t unzip the software.
  4. Connect your Galaxy S4 with the computer by using the USB cable.
  5. Copy-paste the update file from desktop to your phone’s SD card.
  6. Remove the USB cable.
  7. Turn off your phone and wait for a couple of seconds (4-5 seconds should do the trick).
  8. Then reboot in recovery mode; press and hold Volume Up, Power and Home buttons.
  9. From recovery first wipe the system: select “wipe data factory reset”, “wipe cache partition” and “wipe dalvick cache”.
  10. Return by selecting “+++go back+++”.
  11. Select “install zip from SD card” and “choose zip from SD card”.
  12. Pick the firmware file.
  13. Flash the same.
  14. When the installation process stops, you need to select “+++go back+++” and “reboot system now”.
  15. If there are problems while trying to complete the steps from above, use this tutorial and learn how to resolve the issues.

And with that we are done for today. What can I say, good job as your AT&T Samsung Galaxy S4 I337 has been updated with Slim Bean Jelly Bean 4.2.2 build 7 Custom ROM firmware. Test the new software and order to see how it performs and then return here, use the comments area and share your impressions with us.