Install SlimBean (build 6) Android 4.2.2 Custom ROM on Galaxy S3 (I535 and T999)

SlimBean is a powerful custom ROM that comes with important features, apps and capabilities that cannot be found in the default version of the Android system. Furthermore, the Slim Bean platform had become lately extremely popular among worldwide Android users, the system “competing” with other popular firmwares, like CM10.1, AOKP or ParanoidAndroid. Also, the Slim Bean team had added new devices in the software support list, so during the present step by step guide we will be checking on how to update the Samsung Galaxy S3 (the T-Mobile T999 and Verizon I535 versions) with the new version (build 6, based on Android 4.2.2 Jelly Bean OS) of the mentioned custom ROM.

This update comes shortly after the CM10.1 RC4 one, which can also be anytime flashed on all the US models of the Galaxy S3 (T999, I747, I535 and L710); but if you want to try something new, then don’t hesitate and complete this tutorial which will easily take you through the installation procedure of Slim Bean. Now, the firmware is based on stock Jelly Bean 4.2.2 so, you will be applying a custom version of the same for customizing and optimizing the performances and the looks of your Verizon, or T-Mobile Samsung Galaxy S3.

Considering that the SlimBean firmware is actually a free aftermarket distribution of the Android 4.2.2 Jelly Bean software, then it should be clear for those who are looking forward in completing this guide that the present update isn’t an official one released by Samsung for the Galaxy S3 model numbers T999 and I535. We are dealing with a custom ROM, so for flashing the same a manual installation method is being required (you cannot OTA or by using KIES use the Slim Bean OS).

As mentioned, the platform comes with many new features, apps and capabilities that cannot be found in the default version of the JB 4.2.2 system. So, if you choose to apply Slim Bean on your SGS3, then you will be able to improve the performances of your phone, gain more speed, customize the Android user experience, access the internal system, upgrade the battery life and much more. The best is that the ROM is stable, which means that there are no reported bugs or issues; anyway you can find out more details related to the Slim Bean software by checking the download link from below (you have the proper links offered during the installation procedure).

Anyway, don’t hurry up and head straight to the steps from below as you can skip important aspects. It is important and recommended to prepare your smartphone before applying the custom ROM into its system, as else you can even end up in bricking your handset. So, be patience and read all the lines from this tutorial.

Start the update operation with a root procedure. Yes, that’s right, you do have to previously root your Galaxy S3, or else you won’t be able to update it with the Slim Bean JB 4.2.2 custom firmware. Remember that the warranty will get void, so for the root task use a dedicated guide that is suitable with your SGS3 T999 or I535) – the warranty can be regained if you downgrade to stock ROM, or if you update with an official update rolled out by Samsung.

As soon as your phone’s system is unchained you can consider in applying other procedures that are required for the present operation. The first thing to do is to replace the stock recovery image with a custom one. By using a custom recovery image, like CWM recovery, you will be able to wipe the system and to install the SlimBean OS, so you can’t and shouldn’t go any further without completing this process.

Because a wipe will be required, you do have to backup the Galaxy S3 data; this should be the first thing to think of when trying to apply complex and risky operations on your smartphone. There are many ways in which you can apply a backup, though I recommend you to use suitable backup and restore apps from Google Play (the tools can be used for saving almost anything you need, the EFS folder and internet settings being included). Also, it will be a good idea to use the recovery image for making a Nandroid backup as well; if something bad happens you will then be able to restore the stock OS.

Finally, the last stuffs to take care of are: you need to have access to a computer that has an internet connection enabled; your phone and its USB cable will be used too; on the computer and on your phone you should deactivate the security protection, or else you might have some issues while trying to download and apply the firmware file; you have to enable the USB debugging option by using the Settings menu of your handset; charge the battery of your S3 in case there is less than 60% power left.

Do remember that this step by step guide is being compatible only with the Samsung Galaxy S3 model numbers T999 – T-Mobile and I535 – Verizon. Furthermore, the Slim Bean Android 4.2.2 custom ROM has been developed and offered by those of xda-developers so we have them to thanks for the present tutorial.

How to Install SlimBean (build 6) Android 4.2.2 Custom ROM on Galaxy S3 (I535 and T999)

  1. You can download the update file by using: the link from here for the SGS3 T999 and the link from here if you own the Galaxy S3 I535.
  2. Save the update file on your computer.
  3. Then, download the Google Apps package (from here) because you will have to flash it separately.
  4. Don’t unzip the downloaded files.
  5. Take the S3 USB cable and by using it connect your handset with the computer.
  6. Select the downloaded files and transfer them (copy-paste or drag and drop) to your phone’s SD card.
  7. Disconnect the devices and turn off your smartphone.
  8. Then, reboot by pressing and holding on the Power, Volume Up and Home buttons together.
  9. The recovery mode menu will then be displayed.
  10. Now, by using the recovery tool, first of all select “wipe data factory reset”, “wipe cache partition” and “wipe dalvik cache” – do backup the data first.
  11. Return and choose “install zip from sd card” followed by “choose zip from sd card”.
  12. Pick the firmware file and install the Slim Bean ROM on your SGS3.
  13. Then, return, repeat the last step and apply the Google Apps package.
  14. In the end, from recovery select: “+++go back+++” and “reboot system now”; done.
  15. In case the first boot takes longer than usual, don’t panic, there is nothing wrong with your handset.
  16. But, if your phone gets stuck into a boot loop, then: reboot into recovery once more, select “wipe data factory reset” and “wipe cache partition”, reboot and that’s it.

So, that was all; you have successfully completed the step by step guide. Congratulations, your Samsung Galaxy S3 has been updated with the Android 4.2.2 Jelly Bean based SlimBean custom ROM firmware. You can use the comments are from below for sharing your experience with us and with others who might want to test this software.

  • ryaz

    does anything work for the AT&T branded phones?

  • Jack

    Does it work on s3 I9300T

  • Shezen Ahmed

    i dont have an CMW base recovery v 5.5.0.4,, my s3 t999 shows something else.

  • Shezen Ahmed

    every thing went perfectly , but my s3 is still showing slim bean icon… what can i do. pls help. oh by the way i have used clock based recovery, will it have any kind of negative effect ?

  • marv

    Everything went great with installation on my SG3, sch-i535, however once installed when I tried to update my installed files from play store, it keep telling me my device wasn’t comparable with the app. Any ideas

  • Leo

    Hello, do you know any way to activate HDMI – Micro USB connection to TV on this ROM? (actually with stock fw it works normal). Thanks.

  • willy

    Is the Wifi calling from TMobile works?

  • Benjamin Hoffmeyer

    Does it work on sprint galaxy s3

  • MRyan

    Install went fine, no camera though. FC’s on me everytime I start it. Any word or fix on that?

    Verizon SCH-I535

  • Stanley

    Where’s the download link?