How to update Samsung Galaxy S3 to Android 6.0 Marshmallow

If you heard correctly, in this new practical tutorial we are going to teach you how to update Samsung Galaxy S3 to Android 6.0 Marshmallow, of course unofficially and thanks to the large Android community behind this piece of Samsung terminal.

The process that we are going to follow is simply the installation of a Rom cooked based on CM13 or Cyanogenmod 13 which is nothing more than the AOSP version of Android 6.0 Marshmallow, or what is the same, a totally pure version of Android 6,0 so that our little one still gives us a bit of war and not have to leave it forgotten in the background from a drawer. So now you know, if you have a Samsung Galaxy S3 International Model GT I9300 And you want to get more out of it by updating it to Android 6.0, I advise you not to miss this post where I am going to explain the installation process from the beginning and step by step.

Requirements to meet in order to update the Samsung Galaxy S3 to Android 6.0 Marshmallow

• Having a Samsung Galaxy S3, international model GT-I9300 which must also be Rooted and in possession of the modified Recovery.
• Having the Modified Recovery updated to its latest available version. Very important that it is in a version of the TWRP 2.8.7 or higher.
• Having an backup, nandroid backup of the entire current operating system.
• Having an backup EFS folder.
• It is recommended to make a backup of all applications and data since in the update process we are going to lose them.
• USB debugging enabled from developer settings.
• Battery charged 100 x 100.

Once all these requirements have been met, the most important without a doubt are those of have the TWRP updated to its latest version available, a recommended version that you will be able to download from this same link, and also make a backup copy of the EFS folder, Once all that is done, you will be ready to follow the attached tutorial to get update Samsung Galaxy S3 to Android 6.0 Marshmallow.

Files needed to update the Samsaung Galaxy S3 to Android 6.0 Marshmallow

To update the Samsung Galaxy S3 to Android 6.0 Marshmallow, Please note that this only works for the international GT I9300 model, we will need to download three compressed files in ZIP format that correspond to the zip of the ROM itself, the zip of the native Google applications, better known as GAPPS, and the ZIP of SuperSU 2.56 that will give SuperUsaur permissions to our Samsung Galaxy S3.

Download the necessary files:

• Rom Resurrection Remix M 6.0.1
• Gapps Android M
• Super Su 2.56

Once the three necessary files have been downloaded, we will copy it as is, that is without decompressing, in the internal or external memory of the Samsung Galaxy S3, to be able to be in the root of the same, or what comes to be the same, directly in the internal or external memory but without putting them inside any folder or directory.

Then we just have to follow these simple flashing instructions to the letter and without skipping any step.

How to update Samsung Galaxy S3 to Android 6.0 Marsmallow step by step

To update Samsung Galaxy S3 to android 6.0 Marshmallow and give a new life to your Smartphone, you just have to follow these simple steps or flashing instructions:

Step 1 restart in Recovery Mode

StopStart the Samsung Galaxy S3 in Recovery Mode, that is in recovery mode or Recovery mode, we will have to turn off the terminal completely, wait about ten seconds to make sure that it has turned off completely and turn it on again by pressing the buttons this time. Volume + more Home more Power until we get the start logo, at that moment we will release the Power button but we will press and hold the Volume + and Home buttons.

An image like this will be shown to us in which we will have to follow the steps that I explain step by step below:

Step 2, flashing the Rom, Gapps and SuperSU:

1. We go to the option Wipe and we select Advanced Wipe for within this option mark all the possible options except the path where we have stored the necessary files for flashing the ROM, that is, if the Rom has been copied to the external memory or external MicroSD card, we will do all the possible Wipes except for the External Memory or External Memory. If, on the other hand, we have copied the Rom into the internal memory, we will do all the Wipes except for the aforementioned internal memory or internal memory, since that is where we have everything we need to install the ROM.
2. We go to the option install and select the ROM zip, after the All gifs Gapps and finally the All gifs SuperSU, always in this order that I just marked, ROM, GAPPS and SuperSU.
3. We slide the slider from the bottom of TWRP to execute the marked tasks that are none other than the installation of the selected zips and we wait for the process to finish correctly.
4. Now we just have to select the option Reboot System Now and wait for the Samsung Galaxy S3 to restart normally showing us the welcome screen of the new version of Android 6.0 Marshmallow gThanks to the developer friends of the Ressurrection Remix team

Now you will only have that configure the Samsung Galaxy S3 with your Google accounts and favorite applications, if you had saved a backup of all your applications and data with Titanium Backup, this is the moment to install the APK of Titanium Backup and perform backup restore of all saved apps and data taking into account that the applications and system data that appear to us in red, will be the ones that we should not restore since they could cause damage or malfunction in the new installed operating system since they are data or system apps from a different version from Android.