How to Unbrick/ Fix Bootloop/ Revert Back to Stock ROM Asus Zenfone 5,6



How to Unbrick/ Fix Bootloop Asus Zenfone 5,6
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WARNING – Guys Don’t use the new Kitkat firmware 2.22.40.540 it seems the firmware has a corrupt recovery and you won’t be able to access your recovery any more so Use Kitkat 2.21.40.44

Disclaimer- Kindly Follow the Instruction Step by Step as shown in the video one wrong command or move will further hard brick your phone and Geeki Review Channel will Not be responsible for the Damage. So Proceed at Your Own Risk.
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The Method shown in the video can also be used to downgrade your phone to any previous version.(But the Version should have its recovery & fastboot/droidboot.img)

Kindly Note – to get to Recovery mode on Lollipop you need to press power + volume up button together. Unlike in Kitkat were you have to press volume up + down together to enter recovery mode.

Important note for People Reverting Back from Custom Rom to stock ROM (eg. from cm13 to Kit Kat) your bootloader will lock automatically once you follow the procedure in this video so no need to separately lock your bootloader

Download Unbrick Kit By Clicking on the either of the Link Below-
Link 1-

Link 2-

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Asus firmware official download instruction-

Visit the below link-

Under Select Your Product-

Click on “product series”
Select “Zenfone”

Click on “Product Model”
Scroll all the way down
Select “ZenFone_A501cg” for Zenfone 5

On the right Side “Driver & Utility” Option will appear
Click on it

Click on BIOS & FIRMWARE
Click on show all and download the appropriate firmware with the right sku for your phone.
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Download Link for minimal_adb_fastboot_v1.3.1_setup.exe works for 32bit & 64bit this is for those people who have not Installed ADB drivers before bricking their phone. After installing this restart your Pc or Laptop Once

Note- If you are Facing issue
1) While following the 4th Command its due to ADB Drivers so download & install Minimal ADB and Fastboot tool(minimal_adb_fastboot_v1.3.1_setup.exe) from Above link.

2) Also Make sure that You need a Firmware prior to the Firmware you were on eg- if you bricked your phone On WW_3.24.40.78 you shoud use any firmware before it(any previous version) like i used a WW_22.40.54. Make Sure the firmware has Recovery.img & Fastboot/Droidboot.img file.

Download Lollipop Recovery.img for Version 3.23.40.52 WW SKU for Asus Zenfone 5

Click on Above Link Select Android as operating system and click on firmware

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37 Responses

  1. Shreeshma D says:

    Bro, it's showing in the command window, after pasting the first command, "waiting for phone". Please help!

  2. Parmeshwari Devi says:

    bro how to remove twrp? I'm keep getting back to twrp instead of no command windoq

  3. Parmeshwari Devi says:

    bro I installed rom n it didn't start.. even restore back is show unable to mount.. I wanna switch back to stock rom… I can go to bootloader but not recovery because I'm having twrp installed… I typing commands in bootloader… any way to remove twrp? n in brick … it's not installing any rom now

  4. cem ayar says:

    When i tried to all steps, i got the error:

    Erasing old dictonary….
    symlink: some symlink failed.
    return code 0E:Error in /tmp/update.zip
    (Status 7)
    E: fota_return_code 409
    installation aborted.
    E:cant open /cache/recovery/last_log
    E:cant open /cache/recovery/last_install
    E:cant open /cache/recovery/last_update-script.log

    Zenfone 6 – ASUS_T00G_WW_user_2.22.40.47_20151120_29

  5. Vey Deck says:

    Thanks dude, nice tutorial. I just learned while watching this and it success.

  6. Dharmaraj Honmore says:

    my asus zenfone 5 shows the unknown device in win 7 PC device manager…..can't open in pc…help me how to resolve this…ADB drivers installed…but when I connect mobile charging works ok….but at the taskbar, it shows "USB does not recognize"….after factory reset .. the same issue occurs

  7. Dharmaraj Honmore says:

    Using this tutorial I fixed my android boot loop……you are a great man… awesome…

  8. DRAVIDIAN KING says:

    saved my phone and my life….thanx a ton brother………..

  9. Basit Pathan says:

    Thnx bhai…. Its such a useful video…good job bhai….

  10. M. Mizie says:

    What is the most stable kitkat for zenfone 5?

  11. jfigg261 says:

    You are the man! Have a TF103C Transformer tablet that crashed and followed your steps using the firmware for the TF103C on the ASUS website. Worked like a charm, thanks so much bro!

  12. Rabindra Shasani says:

    Do you have any solution for how to mount cache partition..

  13. Enik Januarti says:

    It was useful sering your video, kindly let know i have flashed my A500CG using of Asus flash tool, but at the end of processing on the handphone's display error' as follows:
    cmd partition using gpt
    e:gpt failed: adde:oem partition command failed, retval=-1 val=-1
    Kindly could you please help me accordingly sir??

  14. Manku Sahu says:

    I have not installed adb drive

  15. venjie celis Sr. says:

    can you give me the link for the apps needed please

  16. Rabindra Shasani says:

    Partition not mounting in my device..

    So I can't flash the firmware and fastboot too..

  17. Rabindra Shasani says:

    My ZenFone 5 not flashing fastboot..

    It stays in droidboot mode..

  18. Saiful Diyana says:

    Thanx a lot for this man…. You are my best mentor in android……

  19. Arun Kumar says:

    in the last step it is showing "failed to read command: cannot connect to deamon" please help

  20. Royal C-21st Entertainer says:

    Thank You So much Bro
    It really works

  21. Muhammad Faiz says:

    sir, i've followed all the steps that you showed but when it comes to adb sideload, it becomes 'total xfer 0.00' how to fix this sir?

  22. subhash challa says:

    i have asus zenfone 6 a600cg

    my phone is stuck in asus logo

    i cant go into recovery mode to hard reset it
    pressing vol up and power just brings it back to the same asus logo screen

    please guide me in this case

  23. quennie ba says:

    How to fix boot image invalid? Help please 😭

  24. Pramod Daksh says:

    Sir every times I upgraded my Zenfone 5 into Lollipop or Lineage 14.1.2 from running Kitkat, both the SIM card does not detect it shows that Sim UNAVAILABLE and as I downgrade it into Kitkat back and after that both SIM card detected and runs good, now I want to know what is that issue and how to fix it.

  25. Pramod Daksh says:

    Since my asus zenfone 5 running Lineage 14.1.2 and I am trying it revert back to Kitkat and after third command process my phone goes into recovery mode but problem start here that pressing and releasing upper volume and lower volume key there nothing happen and I could not go forward my phone restarts in Lineage. Please help again…

  26. cREATOR says:

    but
    i wanted to fix the bootloader without data loss

  27. King laugh says:

    Go the step 4 and loading fail at 53%, after that i do it again and my phone got another problem is USB logo has appeared. why ?

  28. Callist lapisah says:

    cable connected to phone but cmd said waiting for device

  29. Mohanish Bhave says:

    Hi kevin , my asus zenfone 5 not restarting stuck on asus logo , i havent on usb debugging so i cant unlock or relock bootloader. please help

  30. Raghuveer Shetti says:

    my asus fonepad 8 is stuck on boot loop,i could nt format through stock recovery mode..adb flashing didnt work..is there any other way to make it work again as before?

  31. Prathamesh Rane says:

    i hv installed lineage on my zenfone 2 , used it for few months , while doing factory reset phone goes to twrp screen now stuck there, phone doesnt install lineage and gapps again , while installing it shows successful but still goes to twrp ,, can u psl help?

  32. Abhin S S says:

    help me bro plz.

  33. Gk Tadzilla says:

    my zen6 cant detected at bootloader mode but detected at "apply update from ADB, can u help me to fix it?

  34. Vipin says:

    Hi bro… I have a problem on my zenfone 5 which is the "setting" icon gets corrupted & turned into "com.settings". So what I did every time to fix this is manually upgrade or downgrade my OS but few days ago I got this issue again & I turned off my phone to safe mode and after that my phone is not starting up it keeps showing me asus logo. I had never ever installed ADB drivers on my lapy before this ( And also I never rooted or flashed – custom roms on my phone in past )
    Can u plz guide me ? Coz I had not installed ADB drivers before this bootloop issue..

  35. Amol Padhiar says:

    Bro, I am using zenfone C451CG. I am able to successfully execute 'adb sideload UL-ASUS_Z007-WW-4.11.40.88-user.zip' command. Loading and sending is completed. But when the process starts on phone, yy device suddenly restarts when 'erasing old directory' command is running. What should be wrong?

  36. Pradip B says:

    You saved my day bro… Great video…

  37. SU TECH says:

    Dude you just saved my life otherwise my parents would not buy me a new one because I bricked the old one

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