Development never stops in the Android community and there's always something new to tinker with. It's time for T-Mobile Samsung Galaxy S3 SGH-T999 users to try and enjoy Google Now–the fastest and easiest way to search for information on the Web; that is, with the use of your own voice. No need for some rush typing when you are driving or doing something else. Just say it and Google Now will find it for you in an instant.

Credit goes to the ever-innovative members of XDA Developers who were able to make a way to install the Google Now app on the T-Mobile variant of the Samsung Galaxy S3 and even took it a step further by allowing users to replace S Voice with Google Now as the default voice search app of the phone.

This guide shows you how to install Google Now on the Galaxy S3 T999.

Warning

• The instructions in this guide are intended for use with the T-Mobile Samsung Galaxy S3, model number SGH-T999. Applying these instructions on another device or model may produce undesired outcomes.
• The information in this guide is provided for instructional and educational purposes only. There is no guarantee that these instructions will work under your specific and unique circumstances.
• Use these instructions at your own risk. We shall not hold any responsibility or liability for whatever happens to you or your device arising from your use of the info in this guide.
• Read and understand the whole guide first before actually performing the instructions.

Requirements

• T-Mobile Samsung Galaxy S3 SGH-T999 with root access and ClockworkMod Recovery installed.
  • See our guide on how to gain root access and install ClockworkMod Recovery on the Galaxy S3 SGH-T999.
• Backup all personal data on your phone to make sure you have a copy of your personal data (e.g., contacts, SMS, MMS, Internet settings, Wi-Fi passwords, and the like) in case the procedure in this guide erases such data.
  • For backup tips, check our guides on how to sync your data to the cloud and how to create local backups of your mobile data.
• Download Google Now (M7_Offline.zip, 36.48 MB)
  • Mirror Link

Instructions

Installing Google Now

1. Copy the Google Now ZIP file to the internal SD card on your phone.
2. Boot into ClockworkMod Recovery by pressing and holding down the Volume Up, Home, and  Power buttons at the same time until recovery boots.
   • NOTE: In ClockworkMod recovery, use the Volume buttons to navigate and the Power button to select options.
3. Select Install ZIP from SD card then Choose ZIP from SD card. Choose the Google Now file. Confirm the installation by selecting Yes on the next screen.
4. Once Google Now is successfully installed, go back to main recovery menu and select Reboot system now.
5. After your phone boots up, check if you have “Google” on your app drawer. If not, try reflashing Google Now.

Activating the App

1. If you don't have it yet, install the Google Latitude app on your phone and make sure it is set up with your Google account.
2. Open Google Now from the app drawer then continue and click Yes, I'm in to enable the app. Information cards will then appear.
3. You have now Google Now on your phone. If you want to replace your S Voice with Google Now, follow the next steps.

Replacing S Voice with Google Now

1. Launch S Voice on the phone, go to Settings menu, and uncheck the Launch S Voice option.
2. Download the Home2 Shortcut app from the Google Play Store.
3. Open Home2 Shortcut then go to the settings tab and tap on Choose Application > Installed Applications > Voice Search then press OK. Follow the instructions and then close the app.
4. Try to check if it works by tapping the Home button twice to start Google Now
   • If this doesn't work, open Google Now, press the Menu button, and then select Refresh. Afterwards, reboot your phone.

Great! You just learned how to install Google Now and replace S Voice on the T-Mobile Samsung Galaxy S3 SGH-T999. Share it with your friends so that they can also enjoy its handy features.