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How to Downgrade Asus Zenfone 4,5,and 6 from Kitkat to Jellybean

Updating to the latest operating system on our smartphones is very exciting. The new features and new interface make us want the latest release of Android for our device. So, you updated your Zenfone 4, 5 or 6 smartphone to Android Kitkat but due to the numerous bugs, you want to revert to the former firmware. In this article, I’ll teach you how to downgrade Asus Zenfone 5 (4 or 6) from Android Kitkat to Jellybean.

Disclaimer: Do this at your own risk! I’m not responsible for any damages or bricked devices that may arise during the process.

You need the following tools and software to downgrade your firmware:

  1. Intel USB Driver for Android
  2. ADB Fastboot Tool
  3. Recovery image for Asus Zenfone 4, Zenfone 5 or Zenfone 6
  4. Android Jellybean for Asus Zenfone 4, Zenfone 5 or Zenfone 6
  5. A working PC and compatible data cable


Downgrade Asus Zenfone from Kitkat to Jellybean

If you only want to downgrade your Zenfone 5 or 6 to Jellybean because you have troubles rooting the Kitkat, you can also read this. How to Root Asus Zenfone 5 / 6 Running in Kitkat

Downgrade Asus Zenfone Kitkat

Follow the procedures carefully including the renaming of necessary files.

  1. Download Intel USB Driver for Android and install it on your PC.
  2. Download and extract ADB Fastboot Tool
  3. Download recovery image for your device and copy it to ADB folder. Rename it to file.img
  4. Download Android 4.3 Jellybean firmware for your phone. Extract it and rename it to Copy the file to the ADB folder.
  5. Enable the USB debugging option. Go to Settings> About> Software Information> and tap the build number 7 times to reveal the developer option.
  6. Connect your phone to the computer using a compatible data cable.
  7. Open ADB folder and Open Command Prompt ( Shift+right click> Open command here )
  8. Type the following: adb reboot bootloader
  9. The phone will automatically reboot and go to DroidBoot then type in the command prompt: fastboot flash recovery file.img
  10. After a successful entry into the recovery mode of  your  Zenfone, select Recovery in Droidboot then press the Volume – and + simultaneously.
  11. Upon entry into Recovery, select Update from ADB
  12. In a windows command prompt type: adb sideload
  13. Type the following: adb sideload and wait until flashing is complete.
  14. Wait until the flashing process is complete and select wipe data and cache wipe in Zenfone recovery.
  15. Reboot your phone and your finished!

Your Asus Zenfone 4, 5 or 6 smartphone is now back to Jellybean! If you managed to soft bricked your Asus Zenfone 5, here’s the bootloop solution for Asus Zenfone 5

Alden Roi

Alden Roi

Alden Roi is the founder of AndroidMeister. A tech enthusiast by heart who loves blogging about mobile phones, technology and mobile gaming. He is also interested in trading stocks, reading books and travelling.
Alden Roi

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  1. i just want to ask, which one of recovery image should i use? too many of choices

  2. one more, where is jellybean 4.3 firmware?

    • Follow the link to the Asus page, at the Driver&Tools section, go to the drop down menu and choose Others>Firmware then select v1.18.40.10 (choose according to your SKU)

  3. I just need to flash recovery. Got this link from a friend.

    Stuck at cmd, it shows an error:device not found.

    Already got asus adb interface and intel driver 1.1.5 installed.
    tried re-installing too.

    USB Debugging is on and phone is connected.

    Any solution ? Please reply ASAP. I don’t have recovery now.

  4. which one should i download at step # 3?

  5. Hi, I have a Zenfone 5 running on Android KitKat 4.4.2. Ever since I got this phone around 2 months ago, Android OS background data usage has been absurdly high. It’s now at 48MB while the total usage is at 80MB (includes Android OS consumption). I’ve already disabled syncing for, I believe, everything, turned off location setting, turned off backup and restore, turned off check for updates. I’ve read a lot of articles on Google on possible cause. I’ve also restored factory settings but none of these fixed the problem. Would you know what could be causing this? Or how I can troubleshoot? Thanks 🙂


  7. I just keep getting “error: device not found” when I type “adb fastboot reloader” on the cmd and nothing happened. I’m downgrading my zenfone 4, I already connected the phone to the PC, USB Debugging mode On, and on recovery mode (I turn of the device and then Power Up+Vol Down key). Any solution for this problem? Thank you

  8. Hi dear friends,
    Last night after I connected to the home wifi, a reminder said that an update is ready (as it happened before), I accept that and after shutting down, it normally updated to android 4.4.2. When it started again, everything was ok except wifi. Although I turn it on, but unfortunately it can’t find any ssid name while other mobile and tablets connects normally.
    I tried a lot and so did factory reset, I lost everything but the wifi problem not solved.
    I’m looking forward to hearing from you ASAP.
    Believe me, it’s a very urgent condition.

  9. i did not understand step no. 10 where is that GO TO ADB AND SELECT RECOPVERY plz help..????

  10. i got the problem in my zenfone 5, headset icon just appear in status bar but i don’t plug the earphone, i cant play music or make a call cause all sound trough to the earphone jack, try to restart or hard reset but the icon not be disappear, please help me…anyone..

  11. hi

    i am using zenfone 5 CN version kitkat now but i want to downgrade it to jelly bean want to know which recovery image i should use and which firmware version ….. i tried with 1,17CN recovery image but adb sideload file .zip … shows cant read file what to do …… i am using window 7 … recovery image was flashed succesfully

  12. Please help me… I’m going to downgrade to in and everything fine but after installing the firmware from sideload in mobile recovery it’s showing that “installation aborted” it’s showing some ‘sky’ related problem… I downloaded WW sky and my mobile is WW sky too… I don’t know what is the problem…Please help

  13. hi .. thankx for ur help need more now 🙂
    i have downgraded to 1.14 cn and then changed to WW ….in droid boot sku is ww now . i want to update 1.14 to 1.18 ww should i do it with flash method or by copying firmeware in internal memory .will it be directly updated to 1.18ww or first to 1.15 then 1.16 ww ……

  14. Hi guys, I tried above instructions, after step 10 it doesn’t enter to recovery screen so that I can select “UPDATE FROM ADB”
    what happens is that the phone turns off and nothing is shown, then after a long time (such as 1 minute) it reboots and boots normally.
    Awaiting for your Ideas.

  15. By the way.. Sir, do i need to root my asus zenfone 5 to downgrade it to jelly bean?

  16. I wanted to downgrade my zenfone 5 from Kitkat to JB but I wanted to know (suppose) if this process is not successful any how.
    Then phone will boot anything I mean Kit-Kat?
    please reply…

  17. hope you respond.
    I just bought my zenfone today. So I checked if it has updates. Updated it. Went to kitkat 4.4.2 but, the battery is draining very fast. Nothing works. I checked this but i dont want to void my warranty. Is there any other way?

  18. Hi There.

    why is there showing error on stage 9.

    it telling me error: cannot open ‘file.img’ ?

    right now my zenfone 4 is kitkat, i trying the recovery 4.0.3,4.3.10,4.3.11 all the same.

    million thanks your helped

  19. Hi guys,I’m from Turkey and I didn’t understand ”Recovery image”. Can you explain in details?

  20. i’m use zenfone 4, when i update phone , it change to kitkat and my fone always problem with storage

  21. plis suggested what have i do .

  22. I have same problem i cant hear anything at all after upgrade.. audio jack icon apears though no earphone plugged in… help me…

  23. Why i can play some apps on my zenfone 5…is it related to kitkat…please help

  24. Why i cant play some games in my zenfone 5 ??it it related to kitkat ?please help me to solve this problem…thankyou

  25. Hello i have a problem when i entered the recovery mode then there are showing the E: Dev/block/by-name/misc (Permission denied ) and when i use the command adb sideload then no response the device

  26. How can i downgrade zenfone 6 lolipop to kitkat?

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