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Update Verizon Samsung Galaxy S3 to Android 6.0.1 Custom ROM

If you are looking to flash a custom Marshallow ROM on your Verizon Galaxy S3 device, then you should check the instructions listed in this post.

Team OctOS has released a fully functional Android 6.0.1 custom ROM with various elements borrowed from CyanogenMod, OmniROM and LiquidSmooth releases. If you are looking to download and install the new custom ROM on your phone then you should also check the extra info posted here at XDA and here at Team OctOS official website. Before starting the installation you should check the guidelines below.

Preparation Steps:

Use this post only for the Verizon Samsung Galaxy S3 devices.
Do not attempt to update any other smartphones with the files that you will find in this post.

Your Verizon Galaxy S3 has to be rooted and it should run a TWRP Custom Recovery.
The installed TWRP Recovery has to be upgraded to its latest version, so that it will support the new Android 6.0.1 custom ROM installations.

In the ‘how-to’ part of this post you can find two extra preparation steps like NANDROID Backup and Factory Reset.
The NANDROID Backup creates a full restore point for your device, one that you can use in case the new ROM doesn’t boot in normal mode.
The Factory Reset removes the old custom ROM from your phone, but it won’t delete any data from internal storage.

If you want to save data from installed apps, then you should try the Helium tool for Android.

This tutorial has to be used only by advanced users. Do not blamed us in case you brick your phone nor in case you lose any important data files.

Verify the battery charge level of your device and make sure that it is over 50%, as it will prevent the device from powering off during the installation process.

Read the whole post and do not skip any steps.

How to install OctOS Android 6.0.1 ROM for Verizon Galaxy S3:

  1. Download the OctOS-M-Weekly ROM from here.
    – you can check here for newer OctOS Marshmallow builds.
  2. Download Gapps for Android 6.0.1 ROMs from here.
  3. Both zip files should be moved to your phone’s internal storage.
    – after you’ve completed the transfer you should disconnect your phone from PC.
    – do not unzip the files.
  4. Power off your Galaxy S3.
  5. Next, boot it in TWRP Recovery Mode.
  6. First you have to create the NANDROID ROM Backup:
    – select the ‘backup’ option.
    – confirm.
  7. Apply the Galaxy S3 Factory Reset:
    – select ‘wipe’ option and then apply the factory reset process.
  8. Start OctOS MM Android 6.0.1 ROM installation:
    – tap on Install.
  9. Find the custom ROM zip file and confirm the flashing process.
  10. After the new OctOS ROM is done installing on your phone you will have to flash the Gapps zip, too.
  11. Reboot your smartphone in normal mode after all the new files are done installing on your device.
  12. Use your usual Google account info in order to regain control over your smartphone’s controls.

NOTE: the first boot process of this new custom ROM is going to take a while before it loads all the new files.

If the first boot process takes more than 20 minutes before it completes or your phone enters in a boot loop, then you will be forced to repeat installation. If you repeat the custom Android 6.0.1 OctOS installation, then you have to make sure that your device meets all requirements and that you won’t be skipping any steps.

Samsung Galaxy S3 Articles