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Flash Android 6.0.1 Marshmallow OTA Update Manually for T705Y Galaxy Tab S 8.4

Samsung has started to roll out the official Android 6.0.1 OTA Updates for all the T705Y models of the Galaxy Tab S 8.4 tablets.

If you do not want to wait until the official update is being rolled out in your region, then you should be checking the info in this post and learn how to manually flash the new firmware.

This new update can be flashed using the Odin tool over custom ROMs, but you will need to factory reset the device in the process, too. Check the guidelines below before starting the installation process:

  • use this tutorial only for the T705Y model of the Galaxy Tab S 8.4.
    – check the version of your device under Settings> About Device and make sure that the SM – T705Y model is listed there.
  • don’t use this post for any other different tablets.
  • download Samsung USB drivers from here.
    – the usb drivers will allow your device to be detected by the PC.
  • for the updating process you will use the Odin app.
    – Odin is a small tool that requires your PC to run the latest Samsung usb drivers, and for the USB Debugging to be enabled on your phone’s Developer Options menu.
    – in case you cannot find Developer Options, then you should go to Settings> About Device and tap 7 times on the Build Number section.
    – return to Settings, open Developer Options, find USB Debugging and enable it.
  • in case your tablet is rooted, then you will lose root access in the process.
    – any custom Recovery that you might have installed is going to be replaced with a stock Recovery.
  • with Odin you can flash the new update over custom ROMs, too, but you have to factory reset the device in the process.
    – the ‘factory reset’ steps are listed at the end of this tutorial.
    – ‘factory reset’ process wipes clean the system partition, but it won’t delete any data from the internal storage of your tablet.
    – factory resetting the phone will remove the custom ROM completely.
  • in case your T705Y Galaxy Tab S device runs 100% stock Android firmware, then you will can continue to the next part of this post right away, as no data will be lost in the process.
  • check the entire tutorial and do not skip any steps.
  • the tablet’s charge level has to be over 50%, as that will prevent it from powering off during the Android 6.0.1 reboot process.
  • this tutorial is destined to be used by advanced users only, we cannot be held responsible in case you brick the tablet.

If you do not want to manually install the new update, then you should be going to Settings> About Phone> System Updates menu. If there is any new firmware ready for download, then you simply need to confirm the process and the tablet will take care of the rest of the process automatically.

Now that you know all of the above you can continue to the next part of this post and learn how to flash a brand new official Android firmware on your device.

How to flash Android 6.0.1 Marshmallow Update manually for Galaxy Tab S 8.4 T705Y:

  1. Download the Android 6.0.1 MM update archive from here.
  2. When the download is done you can extract the archived contents and save them on your PC.
    – you should obtain the T705YDOU1CPI4 tar.md5 firmware updating file.
    – save the file on your PC without unzipping the tar.md5 file.
  3. Download Odin 3.10.7 from here.
    – unzip the contents.
  4. Switch off device.
  5. Boot your Galaxy Tab S T705Y in Download Mode: press and hold Volume Down + Power buttons at the same time.
    – press Volume Up when a ‘warning’ screen loads, it will confirm Download Mode boot.
  6. Open the Odin app on your PC.
  7. Connect your device with the PC.
    – Odin will detect the device, then you can get to the next step.
    – if the tablet is not detected by the computer you can reinstall the Samsung usb drivers.
  8. Go to Odin, open Options and disable ‘Re-Partition’. If that was already disabled you can get to the next step.
    – do not change any other default Odin options.
  9. Return to ODIN and click AP.
    Find and load the T705YDOU1CPI4 tar.md5 firmware file in Odin.
  10. Hit the START button when you’re ready to begin Android 6.0.1 official update process.
    – do not press any buttons until the update is done.
  11. When the update is done you can see the PASS option shown by Odin. The tablet will reboot in normal mode.
  12. Unplug the device from your computer, then use your default login data in order to unlock the device.

The first boot process of Android 6.0.1 will take at least ten minutes to complete. If you encounter problems during installation you can check the extra info listed in this post.

If the update is done you can close this post and start testing the new Marshmallow features.


In case the Odin app fails to complete the update, then you need to repeat the whole tutorial more than once. If you repeat installation you need to re-check the guidelines above the tutorial, and to make sure that you won’t skip any steps posted above.


In case you see the PASS alert shown by Odin, but your Galaxy Tab S T705Y enters in a boot loop, then you will have to ‘factory reset’ the system partition for it to boot in normal mode.

The ‘factory reset’ steps need to be applied in case you have installed the Android 6.0.1 official update over a custom ROM, too. Here’s how to ‘factory reset’ the device:

  • power off the tablet.
  • boot it in Recovery Mode: press and hold Volume Up + Power buttons – release the buttons when the screen flickers or the Recovery options are loaded.
  • select ‘wipe data/ factory reset’.
  • confirm.
  • reboot your tablet after that.

These were the instructions you needed to fix the Galaxy Tab S boot. If you need any extra help you will have to post in comments below, and we will try to come up with a solution and help you complete the official update manually.

Samsung Galaxy Tab S 8.4 Articles