If you haven't heard of Jelly Bean, you must be living under a rock. The newest Android software update is on everyone's lips and for good reason. This update is packed with improved features, as well as improved performance.

While everyone's talking about how buttery smooth Android 4.1 Jelly Bean is, we'd like to talk about how somethings can be slicker than butter. We're talking about the LiquidSmooth ROM for the Verizon Samsung Galaxy S3 SCH-I535 developed by XDA Developers member liquid0624. This ROM is flavored with  Jelly Bean and has an extremely responsive, slim, and resource-friendly GUI. It includes 5 lock screen targets, customizable battery icons, PropModder (a more convenient way to edit build.prop), SuperSU installed by default, and a whole lot more.

If your mouth is watering and you're dying to get your hands on the Jelly Bean-flavored LiquidSmooth ROM, please take note that the LiquidSMooth ROM is still in its second beta phase. You may encounter some bugs and issues.

In this guide, learn how to upgrade the Galaxy S3 I535 to Android 4.1.1 Jelly Bean via LiquidSmooth JB custom ROM.

Warning

• The instructions in this guide are intended for use with the Verizon Samsung Galaxy S3, model number SCH-I535. 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

• A rooted Verizon Samsung Galaxy S3 SCH-I535
  • Check out our guide on how to root the Samsung Galaxy S3 SCH-I535 (with Odin).
  • Check out our guide on how to root the Samsung Galaxy S3 SCH-I535 (without Odin).
• Download the following files to your computer:
  • K-exec Recovery (d2vzw_recovery.img, 5.42 MB)
  • Liquid JB v2.0 Beta 2 (D2VZW) ROM (Liquid-JB-v2.0-Beta2-d2vzw.zip, MD5sum: 973ee78ae3d89871afdddd632dbd9312).
  • Formula84 Liquid JB GAPPS. Choose only one but not both.
    • Trim GApps (LiquidJB-v2.0-Formula84-Trim.zip, md5sum: 1f174e4393877cb57095273a3fbf8685) includes base apps and does not include Google Now
    • Base GApps (LiquidJB-v2.0-Formula84-Base.zip, md5sum: 5b18f11c21ce11d9586aa7e2b2022626) includes Google Now and Face Unlock
• Install the Android Terminal Emulator from the Google Play Store.
• 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.

Instructions

Backing up IMEI/EFS Data

1. On your Galaxy S3, launch the Android Terminal Emulator.
2. Grant the Android Terminal Emulator root access by typing in the following and pressing Enter after the command:
   • su
3. When prompted, tap on the Allow/Grant button.
4. Type the following to backup your IMEI/EFS Data to your Galaxy S3′s internal SD card. Press Enter after the command:
   • dd if=/dev/block/mmcblk0p11 of=/sdcard/efs.sbn
5. Your SD card now has the efs.bin file. We recommend copying the efs.bin file to your computer and storing it in a safe place.

Flashing K-exec Recovery

1. Copy the K-exec Recovery image to your Galaxy S3′s internal SD card.
2. On your Galaxy S3, open the Android Terminal Emulator again.
3. Grant the Android Terminal Emulator root access by typing in the following and pressing Enter after the command:
   • su
4. Type in the following commands to flash K-exec recovery. Press Enter after each command.
   • dd if=/sdcard/d2vzw_recovery.img of=/dev/block/mmcblk0p18 bs=256k
   • sync

Installing the LiquidSmooth ROM

1. Copy both the LiquidSmooth ROM and the Google Apps package of your choice to the internal SD card on your Galaxy S3.
2. Turn off your Galaxy S3.
3. Boot into Recovery Mode by pressing and holding down the Volume Up, Home, and Power buttons.
   • NOTE: Once in recovery, use the Volume keys to navigate and the Power button to select an option.
4. Once in Recovery mode, make a NANDroid backup of your current ROM. Go to Backup and Restore and select Backup.
5. Select Wipe data/factory Reset. Confirm the action on the next screen.
6. Select Install ZIP from SD card.
7. Select Choose ZIP from SD card and select the LiquidSmooth ROM file.
8. Once the LiquidSmooth ROM file has finished installing, repeat step 6 and select the Google Apps package of your choice.
9. Select Go back.
10. Select Reboot system now.

Restoring IMEI/EFS Backup

NOTE: You'll only need to perform this if your phone's IMEI number has been erased or replaced with “0″.

1. On your Galaxy S3, launch the Android Terminal Emulator.
2. Type the following to grant it root access and press Enter after the command:
   • su
3. Restore your IMEI by typing in the following and pressing Enter after each command:
   • dd if=/sdcard/efs.sbn of=/dev/block/mmcblk0p11
   • reboot
4. After your Galaxy S3 reboots, your IMEI/EFS will now have been restored.

Congratulations! You've successfully installed the LiquidSmooth custom ROM on your Samsung Galaxy S3 SCH-I535.  Isn't your Verizon Samsung Galaxy S3 SCH-I535 smoother than butter now?