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Downgrade from Android Marshmallow to Lollipop



Android M update in Asus Zenfone Series is a great thing. Through which I could not find any major update. As I Expected that Asus will include RAW Image feature but no, They didn't.

Meanwhile, a lot of other users are experiencing problems like Battery Drainage, Camera problem etc. So I decided to make a tutorial on Downgrading.
I have tested this on my Zenfone 2 Laser ZE550KL and it works.
I have Downgraded From Version V21.40.1220.1615 to 1.12.40..349


INSTRUCTIONS:

Download Your respective phone FIRMWARE from Asus Website.


  1.  Put that into phones External Storage
  2.  Turn off the phone and go to recovery mode.
  3.  Press on "Apply Update from SDcard" 
  4.  Now Wait for a while it will complete the installation.
  5. If it shows any error then move back to older version of Downgrade firmware.

That's all guys. I hope you have done the above tutorial successfully. If you found any problem then please comment below.


 ZenfoneHelp Admin
"Vinaya"

28 comments: Leave Your Comments

  1. Replies
    1. Try to downrade to more older version of firmware.

      Delete
  2. will download ASUS ZenFone 2 Laser (ZE550KL) Kernel source file for Android OS ?

    ReplyDelete
  3. Hello, mine is ze551ml. It is whith MM beta. Can I just apply the zip file of last LL from Asus page with this method? Will it work?

    ReplyDelete
  4. I wanna do the downgrade too, can I just apply the update from the sd? I don't wanna brick my phone

    ReplyDelete
  5. I wanna do the downgrade too, can I just apply the update from the sd? I don't wanna brick my phone

    ReplyDelete
  6. Turn off your device press power button and volume down button at a time you will get a vibration feedback after that relase the buttons you will enter into recovery mode.

    ReplyDelete
  7. It's not working that method to downgrade.

    Maybe another method?

    ReplyDelete
  8. no downgrade for latest mm to lollipop

    ReplyDelete
  9. the method dosent work!!
    it gives an error saying it could not overwrite files from an 2015 update with 2016 Marshmallow update

    ReplyDelete
  10. Not working from Marshmallow 6 to LOLLIPOP 5 UL-Z00A-WW-2.20.40.184-user in ZE551ML get a error after verifyng package "you can´t downgrade for old version" or similar.

    ReplyDelete
  11. Worked for me
    Downgraded to : UL-Z00A-WW-2.20.40.194-user
    Thank You

    ReplyDelete
  12. Hey, I am using asus ZenFone 2 laser. How to download firmware from asus website?

    ReplyDelete
  13. Hey, I am using asus ZenFone 2 laser. How to download firmware from asus website?

    ReplyDelete
  14. asus must release a downgrading OS to fix any problem after upgrading to marshmallow

    ReplyDelete
  15. im using ASUS laser 2,my battery draining fast after upgrading to marshmallow,asus must lunch a drown grading os to fix any problem issue...please fix any problem,thanks asus


    ReplyDelete
  16. hello, i am using asus zenfone max. how to degrade my handset..?

    ReplyDelete
  17. irs shows error to downgrading firmware.i tried 3 diffrent software but it not works..help me ..pls.shows low network..

    ReplyDelete
  18. Is the device need to be rooted?

    ReplyDelete
    Replies
    1. No you dont need a rooted device to do this

      Delete
  19. it is possible to downgrade my zenfone 2 laser from marshmallow to lollipop, because i would like to get it back to original os of my zenfone.thank you bro

    ReplyDelete
  20. i use zenfone 2 leser(z00rd)model.how can i replece marshmallow to lolipop

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  21. i use zenfone 2 leser(z00rd)model.how can i replece marshmallow to lolipop.u give me this model version..

    ReplyDelete
  22. after entering in recovery mode..there is no option of APPLY FROM SD CARD

    ReplyDelete
    Replies
    1. IT IS SHOWING "NO COMMAND OPTION"..PLZ HELP

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  23. i cant find the lollipop firmware in asus.com. my phone is zenfonemax zc550kl.. where to get the lollipop firmware help plz.

    ReplyDelete