Update Galaxy S3 I9300 Using Amestris Jelly Bean Android 4.1.2 Custom ROM

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Amestrics is actually a custom ROM based upon the hottest official Jelly Bean Android 4.1.2 firmware for the Galaxy S3 I9300 Smartphone by Samsung. It is a modified version of the firmware & comes with an extensive list of changes and features made through the operating system.

The dark theme in this particular firmware is known as BlackDiamond and appears smooth to us on the Samsung Galaxy S3. You can easily update your GS3 I9300 to the Amestris Jelly Bean Android 4.1.2 custom firmware with the help of a tutorial below. Let us inform you that the tips & tricks are not officially released by Samsung, but they are just a custom ROM that would need a custom recovery such as ClockworkMod to flash the zip file of the ROM on your phone.

Today we are going to tell you about installing the Amestris Jelly Bean Android 4.1.2 on your GS3 I9300 with the help of complete steps. So, do not overlook to read all the suggestions given below that you need to consider before proceeding. We strongly recommend you to backup all the important data as this tutorial would clean your data.

The following tips are very significant because they will assist in the installation process to go smoothly without coming across any problem. Let’s begin the tutorial now.

Amestris Jelly Bean Android 4.1.2

Disclaimer:

All the firmwares and custom ROMs, tools, official software updates, mods or every other thing described in the tutorial belong to their particular  developers/owners. We (UpdateMyAndroid.com) or the developers are not answerable if any damage happens to your device. We are not forcing you at all.

Amestris Jelly Bean Android 4.1.2 ROM Details:

This fantastic Amestris custom ROM holds multiple new features and based on the Jelly Bean Android 4.1.2. A quick list of the major and useful features in Amestris is given below and you would love to use this on GS3 I9300:

  • Multi Language
  • Aroma Installer
  • Stock Kernel
  • Rooted
  • Odexed all jar files and stock applications
  • CRT-off animations
  • Stock Kernel, unsecured
  • Aroma installer
  • Skip Tracks through Vol.btn
  • MediaScanner fix
  • Extended power menu option [3way]
  • Touch through home button on lock screen
  • Buybox + Superuser
  • Disabled Scrollcache
  • Init.d Support
  • Amestris over the air updates on Settings.
  • Bloatwares free!
  • Multi CSC
  • Zipalinger + Zipaligned script on boot.
  • New button design
  • Disabled increasing ring tone mode
  • New dialogue frames
  • Amestris Dialer Design [just like iOS 5]
  • New Tab Button Design
  • New checkbox Buttons
  • Fixed touch area in “End Call” button on call screen
  • New Call Screen Layouts
  • Activated record button on call screen [Wanam]
  • Defined New Styles on the Call Screen.
  • New Battery Design
  • Larger caller screen picture [720 x 960 p]
  • Center Clock
  • New Amestris Statusbar [V1.0]
  • Signal bars on left
  • Transparent status bar at home screen
  • Status bar widget appearing on Bottom
  • New attractive layout for signal Icons
  • Statusbar glitches fixed
  • New layouts for rows and widgets
  • Hide SMS from the log
  • No Auto Converting SMS to MMS
  • Add exit Button to use the stock browser
  • Percentage battery Mod
  • Unlimited contacts to MMS, SMS
  • Hide SMS from the log
  • Adfree updated hosts
  • New calculator user interface
  • Fixed Rtl Layouts

Backup and important tips

We really do not want anyone to lose his/her important apps or data. That’s why it is necessary to observe the safety measures before running the process. It is imperative to adopt some safety guidelines that you should consider for the best protection against data loss.

Install Amestris Jelly Bean Android 4.1.2 on Samsung GS3 I9300

We have crafted a detailed step-by-step process that will make it easier for you to get this job done. Remember the tutorial is exclusively for installing the Amestris Jelly bean on Galaxy S3.

Samsung-Galaxy-S3

Follow Step-by-Step Instructions:

Step 1. Download Amestris 4.1.2 ROM for the Samsung Galaxy S3 on your computer.

Step 2. Connect & mount the Galaxy S III USB memory on computer with the help of USB cable.

Step 3. Now simply copy & paste the downloaded Amestris 4.1.2 ROM zip file to SD card.  It must be on the SD card root, not anywhere else.

Step 4. Turn OFF Galaxy S3 and detach from that USB cable.

Step 5. In order to enter the Recovery Mode, press and hold Volume up + Power buttons + Home altogether while switching ON your phone.

ROM-Install-CWM-Recovery

Note: ClockworkMode recovery screenshots might be changed now due to the availability of new versions.

Step 6. Select “wipe factory/data reset” and perform a complete data wide wipe when you are in the ClockworkMod Recovery. It is shown below for your assistance. The power button can be used to select everything here.

ROM-Install-CWM-Recovery-

Step 7. Now, perform cache wipe simply by choosing the “wipe cache partition” just as shown in the image below:

ROM-Install-CWM-Recovery3

Step 8. This step is optional. In CWM recovery mode, Go to “Advanced” and after than select “wipe dalvik cache”.

ROM-Install-CWM-Recovery-3-600x450

Step 9. Go back to main recovery screen & choose “install zip from the SD card”.

Step 10. It’s time to select “choose zip from the SdCard”. Navigate to the Android 4.1.2 ROM zip file with the help of volume keys. Now, confirm the installation onto the next screen & installation process should start now.

Step 11. After the completion of the installation, go to “Go Back” and then reboot your Galaxy S3 by choosing “reboot system now” from recovery menu.

ROM-Install-CWM-Recovery

Image: reboot system now

Your GS3 I9300 is going to boot now & it could take up to 5 minutes to boot for the first time. Well, please wait.

That’s all! Your valuable Galaxy S III should now have the Amestris Jelly Bean Android 4.1.2 custom ROM installed successfully. Visit Settings > About phone to confirm.

We need your appreciation. So, leave your friendly comments below.

Moreover, feel free to contact us if you come across any problem while doing all this.

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