Downgrade from Marshmallow 6.0 to Lollipop 5.1.1

Hi guys 
I got the marshmallow  update for my Galaxy S6 and really dislike it. 
So i decided to downgrade from marshmallow 6.0  to lollipop 5.1.1 and i was able to do that  successfully .



1.Download, Extract and Install the Samsung USB Drivers(then reboot)

2.Enable Developer Mode on the Galaxy S6


3.Enable USB Debugging on the Galaxy S6

4. Download Samsung Kies and back up your phone data. Remove the microSD card from your phone .

5. Download the lollipop firmware from SamMobile. unzip it.

6.Download and extract Odin.
7.Power down the phone.

8. Press and hold the following buttons in order: Volume Down + Home + Power. Keep holding them until you see a screen that says "Warning!!" at the top.

9. Press the Volume Up button to continue.

10. The next screen will show the Android logo and say "ODIN MODE" at the top left.

11.Run Odin as administrator. Under Options, only "F. Reset Time" should be checked.(Uncheck"Auto Reboot" ).

12. Click the "AP" (or "PDA") box and browse for the extracted firmware file.

13. Now connect your phone to your computer via USB.

14.Wait until you see your phone plugged in.

15. Press Start in Odin. 

16. When Odin is successfully finished, you will see in the Message box "All threads completed" 
(it may take several minutes to complete so be patient).


17.Don't turn on the phone.

18. Press in order: Volume Up + Home + Power until you see an Android screen.

19. Use Volume Down to scroll to "wipe data/factory reset" and press Power to select it. (Make sure you have backed up your phone!)

20. On the next screen, scroll to Yes, select it, and your phone will reset.

21.When it's done, select reboot system now and it will reboot.

22. Restore your data using Samsung Kies. This will restore most of everything; you may need to re-setup the home screens and some of your settings.

And that's it  :D

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