Unlock Bootloader for Asus Zenfone 2 ZE500CL - ZenFone 2 Q&A, Help & Troubleshooting

Hello,
I have been trying for a few days now to unlock the bootloader for ZE500CL model to no avail.
I've tried the Unlock Tool provided by Asus but it's no longer supported, whatever that means...
I couldn't find any other posts online that would solve my problem, could anyone help?

it's one of these 10 years outdated x86 Intel SoC I doubt you can unlock it without official support.
However, there is some suspicious download you can try.. happy bricking
Unofficial relock/unlock bootloader for ZE500CL
Unofficial unlock/lock for ZE500CL. For unlock/relock go to droidboot Download
forum.xda-developers.com

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[Q] bootloader related.

Holla! i'm thinking about getting the Zenfone 4GB ram variant .
but there is one thing that concern me and this is Custom ROMS
is the bootloader unlockable?
will it be possible to get CyanogenMod up and running on the device?
Not yet.
My 551ML does not show a locked bootloader, so I am able to flash a pre-rooted system.img file via fastboot. My guess is that CM and AOSP compiling will occur soonly.
mrbubs3 said:
My 551ML does not show a locked bootloader, so I am able to flash a pre-rooted system.img file via fastboot. My guess is that CM and AOSP compiling will occur soonly.
Click to expand...
Click to collapse
To test whether the bootloader is locked or not, it would be a better idea to flash a custom kernel built from sources and see if it boots. According to the Asus forum (read here) the bootloader is locked and for now there is no plan to provide a way to unlock it.
rotorto said:
To test whether the bootloader is locked or not, it would be a better idea to flash a custom kernel built from sources and see if it boots. According to the Asus forum (read here) the bootloader is locked and for now there is no plan to provide a way to unlock it.
Click to expand...
Click to collapse
I never understand WHY vendors like Asus, Motorola or Meizu makes ultra powerfull phones ... what we BUY for MONEY, and lock them for never let you install what you want...
I really want this phone ... but never will buy it if I can't install an AOSP custom made ROM ... (no CM, i hate it)
that why I always buyed unlocked phones like Nexus phones or my actual OnePlus One...
i hope the Lenovo K80, who will be released 30 april will be unlocked !
or the Elephone p7000 (for this, you can already find CM, AOSP, Flyme etc... roms on the OFFICIAL website !!!! )
I agree. I want to buy this phone, but I'm not going to until Asus allows to unlock the bootloader.
rotorto said:
I agree. I want to buy this phone, but I'm not going to until Asus allows to unlock the bootloader.
Click to expand...
Click to collapse
and NOW i'm REALLY interrested oO
on FlipKart you can now reserve a 128Gb version !!
NEED IT, but just if the bootloader and custom roms come ....
if not, I will buy the Oppo R7 or Elephone P7000...
seriously, what it cost to Asus to unlock the bootloader ? and let owners use our phone that they buyed ....
but..
In the warrenty document over on Asus Zenfone section the following details are interesting
Unusability or damage to the Product caused by installing and using the Unlock Device App, which is a utility that will unlock your Product's boot loader but will render the warranty null and void.
The pdf file can be reviewed from the Asus website
Does this help?
SBFarooq said:
In the warrenty document over on Asus Zenfone section the following details are interesting
Unusability or damage to the Product caused by installing and using the Unlock Device App, which is a utility that will unlock your Product's boot loader but will render the warranty null and void.
The pdf file can be reviewed from the Asus website
Does this help?
Click to expand...
Click to collapse
Odds are they were lazy and copied the warranty document over from the one for the previous Zenfone devices, which had bootloader unlock methods released by Asus. Hope they do the same with the Zenfone 2.
hmm...
But has anyone tried to unlock it by this method!
xTremePower said:
I never understand WHY vendors like Asus, Motorola or Meizu makes ultra powerfull phones ... what we BUY for MONEY, and lock them for never let you install what you want...
I really want this phone ... but never will buy it if I can't install an AOSP custom made ROM ... (no CM, i hate it)
that why I always buyed unlocked phones like Nexus phones or my actual OnePlus One...
i hope the Lenovo K80, who will be released 30 april will be unlocked !
or the Elephone p7000 (for this, you can already find CM, AOSP, Flyme etc... roms on the OFFICIAL website !!!! )
Click to expand...
Click to collapse
If bootloader is unlocked by default, people who are not suitable for that will brick the phone in a higher chance, with more issue varieties which increase the cost of after sale services like maintenance. Unless there is no warranty or support for the phone after sale, vendor will not unlock the bootloader.
I am under the impression the ZE550ML zenfone 2, I have, i that the boot loader is locked.
As it is proving impossible to root it using the pre root images available.
I have 2 sets of instructions that I have followed to the exact method, yet the phone will not root !!
1) ADB sideload method, in recovery mode, choose the ADB option. Zip file is in the folder with the ADB + fastboot files.......................................message in command is "unreadable zip or not recognised'......
Checked ADB device and ADB recognises zenfone attached to computer!
2) turn phone on and have debugging set.......................(no recovery mode) place system.img into fastboot folder...........open command via the shift + right click option............submit the line 'fastboot flash system system.img.........................continuously waiting for device......nothing else
Ive never known a more difficult phone to root, especially with all the easy straight forward instructions out there to follow.
So I'm of the impression the bootloader or something is stopping root
Anyone else had the same issue?
xTremePower said:
and NOW i'm REALLY interrested oO
on FlipKart you can now reserve a 128Gb version !!
NEED IT, but just if the bootloader and custom roms come ....
if not, I will buy the Oppo R7 or Elephone P7000...
seriously, what it cost to Asus to unlock the bootloader ? and let owners use our phone that they buyed ....
Click to expand...
Click to collapse
how do you buy elephone p7000 or any other OEM ?? because iam not able to buy anything outside India now. my cards are being refused. i tried everything mastercard.. visa...but no use....
actually they are planing to unlock the bootloader, some got the answer in their forums

Official bootloader unlocking tool by asus!!!!

Asus has released official bootloader unlocking tool for our zenfone 2:laugh::laugh:
the have poted in there official myzen.asus.com
For some reason neither this nor the One-Click Unlocker is working for me. They reboot to bootloader, flash a few lines, and then cut to red text stating "Unlock fail - reboot in 5 seconds."
Does anyone have any idea what is happening or how I might fix it?
I have unlocked it using unofficial method. Any different to unlocking using official method, in terms of feature or functionality of the phone?
Yes. The difference is: official method doesn't work!
Nothing to see on this line
Be glad you didn't get the official tool to work because the official tool is causing bootloader-loop issues see this thread;
http://forum.xda-developers.com/zenfone2/general/report-problems-official-asus-t3226178#post63366615

ZenFone 2 ze551ml [z00a] bootloader does not unlock (please help)

I tried every possible way to unlock my boot loader.
I used various apps given by xda developers .....
I tried the official app to unlock the boot loader.
Flashed a rooted ZenFone system [downloaded from a link provided by xda]and then write the code to unlock bootloader:-
[adb shell]
[SU]
[getprop ro.isn > /factory/asuskey]
[Reboot bootloader]
Still it did not work......
I have been working on this since a month now and even now I can't figure out what the problem is .
please help me find solution.
Should I reinstall the fastboot mode ?
Pls help

ASUS Zenfone 2 ZE551ML Z00AD Bricked (Please Help!!!)

Hello, as the title says, I have accidentally bricked my ASUS Zenfone 2.
The device does NOT have the bootloader unlocked, it is NOT rooted and it does NOT have any custom recovery installed on it.
I have installed the latest firmware from ASUS 2 days ago (Marshmallow update), and today I have tried to unlock the bootloader in order to install CM13 on it, I have tried doing that using the official unlocking tool on the ASUS website, but it didn't work on the 6.0.1 version of the firmware.
After that, I downloaded the official firmware in order to downgrade the phone from 6.0.1 to 5.0.0, so I could unlock the bootloader, now it is stuck in the fastboot screen, and it cannot boot properly.
I am a begginer in Android flashing and what not so I really don't know how to unbrick it, any help would be appreciated as I need the phone back working urgently. Thank you! Waiting for replies.

Question How do I unlock my bootloader without the Asus unlock tool

Surely there's a way to unlock the bootloader of an Asus ROG phone 6 without the unlock tool?
Does anyone know how? And is it as simple as other OEM unlocks
It's possible but not simple.
ASUS remove the OEM unlock commands from all their roms to force using the official unlock app. The one they have decided to no longer offer.
What needs to be done is someone patching a ROM to enable those and re-pack it as a RAW or EDL that can be force flashed on to a locked device. After that the device can simply be unlocked with the standard commands. It requires some development work that nobody has looked into yet. It was done for ROG 2.

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