Zenfone 2 ZE551ML-6J117CN - Stuck on bootloop - ZenFone 2 Q&A, Help & Troubleshooting

Hi, all
Have a Zenfone 2 ZE551ML-6J117CN, bought on GearBest last December
I decided to update the software since dont get any OTA
Before update, wipe my phone cache through recovery mode but since it was taking to long, turned off the phone.
Now when entering recovery, don't display recovery as normal only shows yelow letters regarding cache for a few seconds.
It boot's to a screen with a green robot with a red triangule, and isn't detetec by my pc.
Instaled intel driver and adb drivers, nor my pc nor adb recognise the phone.
Any comment will be welcome.

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[Q] My DHD won't boot, just black screen with blue android sign

Help me please!
I try to do a full wipe/factory reset on my DHD...when i did so my phone just won't boot, just black screen with blue "android" sign. Cannot turn the phone down, cannot come in to the recovery mode...nothing. What can i do, to restore my phone back to normal.
What ROM were you using? I've only ever seen the "ANDROID" bootscreen on SDK builds.
Somehow I solve the problem. I had to connect phone to PC and than reboot phone via adb bootloader and install new ROM from recovery menu.

Blinking bot error on zenfone 2

my phone shows blinking bot error when start or in recovery mode too
It starts to happen when i was trying to wipe cache n before completed i restrated my phone
now when i try it in fastbot method but adb doesnt detect my phone on PC even all drivers are installed properly
PLEASE NEED HELP!
Hi,
This thread is being moved to your own dedicated forum , where the experts may be able to help you better.
Good luck!
Same happened to me today after newest ota update
Same thing happened to me..64gb 4gb ram version Now it won't even get past first recovery menu to be able to wipe it... Don't know what to do and don't have a computer.

Soft Bricked Fix needed (stuck on app optimisation)

Hi guys,
my wiley fox swift gets stuck in a continual optimising apps cycle. I can't enter recovery mode, when i press power+volume up it enters fastboot
(only see the black fastboot screen can't do anything). I did not change anything on my phone (not rooted) it worked fine yesterday and today i can't get it to work.
It's always optimising apps, if it's finished then i see the cyanogen logo and it starts optimising again shortly after.
I removed the battery and did wait about 15 minutes before putting it back in, i tried waiting (after 2 hours+ of it optimising i gave up),
i does not get recognised when i connect it to the pc (although i only used it to put stuff on the sd-card before) maybe a driver would fix this but i'm not sure which one.
I'm pretty clueless right now and i would be happy if someone can help me.
Saw the same thing on a friend's device today, used fastboot to factory reset the device. Insert USB in a powered-off device while holding vol+ then using fastboot do a "fastboot -w" to factory reset and recreate the (probably corrupted) data partitions.
i installed the minimal adb and fastboot connected my phone with my pc started it and tried it.
it doesn't recognize my phone and is stuck "waiting for any devices".
what can i do now? i'm not very experienced with android phones and fastboot.
dajohre said:
i installed the minimal adb and fastboot connected my phone with my pc started it and tried it.
it doesn't recognize my phone and is stuck "waiting for any devices".
what can i do now? i'm not very experienced with android phones and fastboot.
Click to expand...
Click to collapse
ADB needs debugging to be enabled in developer options
FASTBOOT will only work if the phone is in bootloader mode
I already said in my first post:
dajohre said:
I can't enter recovery mode, when i press power+volume up it enters fastboot
(only see the black fastboot screen can't do anything). I did not change anything on my phone (not rooted)
Click to expand...
Click to collapse
since i never changed anything in my phone I haven't enabled debugging in developer options, if I could access the bootloader mode I could reset my phone but like i said,
it enters fastboot and not the bootloader from which i could enter recovery mode
under these circumstances, can i do anything?
see here https://wiki.lineageos.org/devices/crackling/
Note they call bootloader mode Download
Ok i can access recovery mode now (it was explained wrong here)
i tried to factory reset but the problem still persits.
in recovery mode i did go to ->Wipe data/factory reset then i had the options (No/No/Yes -- delete all User data/No)
i choose the third option and it did load a short while. after a reboot it still wants to optimise apps.
what's the best option now? i can choose (Apply update\ Wipe data/factory reset\Wipe cache partition\wipe media\reboot to bootloader\View recovery logs)
Fix
Hi,
I had the same issue and wrote the Wileyfox customer support.
They provided me the following instructions to fix the issue:
Download:
* 1 - ZNH0EAS2NH
* 2 - ZNH2KAS7EB
* 3 - TOS111B
Repeat for File X in [1, 2,3] :
* Goto Recovery
* Update your phone using File X
Since this is my first post I am not allowed to post links.
Find the full document including file links here: h t t p s : / / we . tl / B1IpUP6wtB
Already after running the first update my phone booted again.
Only thing I noticed is that the UI feels a little laggy / slower than before.
Regards

Recovered a bricked Zenphone 2 Z008 after 2 years...

Backstory
2 years ago, I installed nougat into my marshmallow zenphone. A few days later there was a problem with 3g and wifi, so after some searching, I found out I needed to flash modem.zip, after doing so, the phone no longer boot, bootloader is good, recovery is gone and fastboot is gone. Spent about 20+ hours trying to recover... but to no success. The main problem was using the XFSTK method, it did boot to fastboot, but the damn phone product code becomes a Z00A, so flashing a z008 rom led to fastboot refusing to flash. Flashing a z00a rom led to bootloop...
Since I wasted too much damn time trying to recover, and I needed a phone quickly, I bought a 32GB mi max for $120 and never looked back.... until today 03 March 2018.
Recovering the hardbricked Asus phone easily
1) Install the intel usb soc http://drive.google.com/file/d/0B2oMRhweQ4CHbURUNk1ZTHI2Mjg/view?usp=sharing
2) Disable driver verification in Windows 8/10 by rebooting into advanced menu
3) Install intel usb soc above
4) Download and install Download xFSTK Downloader v1.7 https://drive.google.com/file/d/0B2oMRhweQ4CHbDNQdy1jVUJFcEE/view
5) Download the files for xFSTK and unzip
ZE550ML http://drive.google.com/file/d/0B2oMRhweQ4CHcHg4WXJQckFGOTA/view? Usp = sharing
ZE551ML http://drive.google.com/file/d/0B2oMRhweQ4CHR21YaDdXdUNlOGs/view? Usp = sharing
6) Open xFSTK,
go settings, tick enable GP flag override and use the number 0x800000807
link the dnx fwr, ifwi and droidboot from step 5 as follows: https://i.imgur.com/mKZoUdi.png
7) Make sure your phone is off, click begin download then plug in phone, it will start flashing
Sometimes it fails while flashing firmware, sometimes it fails while flashing OS. Doesn't matter keep retrying. Pressing volume button while plugging in phone MAY help.
8) Once successful, you will see 4 color background, then usb cable image, then fastboot mode. If you fail halfway in flashing you will stop at either one of the images. Keep retrying until you reach fastboot.
9) At fastboot, you are safe. Go charge your phone for 1 hour. If your screen dies, do not press power button, press volume button it will remain in fastboot mode.
10) While your phone is charging, install asus flash tool https://drive.google.com/open?id=0B4uMV7GwfDAEYm5RWTFydXZWOTQ
Download the raw file https://drive.google.com/drive/folders/13In6163G8S9BbjiNlEOF-fOXhVIC0z9r?usp=sharing
11) With phone charged, plug in your phone and open the flash tool. Your phone should appear. If not replug usb cable/change usb cable/port, restart the flash tool and leave it plugged in and wait UNTIL the flash tool recognizes it. It will recognize... eventually.
12) select correct model, tick erase data, and locate the firmware. Once recognized, highlight it and click START
13) After 20 minutes, it will be stuck because of the change in serial number. plug out usb cable, restart program, plug back in.
14) Wait for the program to recognize the NEW serial number, then reflash the phone, this time IT WILL BE SUCCESSFUL and will boot into Android marshmallow.
Miscellaneous steps after unbricking
Unlock bootloader, flash recovery, flash custom firmware, root, gapps
Good of you to share. Thanks.
Bricked my own yesterday got it up and running after 6 hrs of looking at guides nice phone good spec but probably be selling on as it not getting any security updates any more I could live with marshmallow but bit wary of no security updates

Trying to flash a pixel C without a battery captor

Hi all, my gf have buy on occasion, a pixel C sometimes ago and it was working fine exept for the battery level that was marking 0% with a red "!" in the icon.
After some month it began to slowdown alot so we make a factory reset from the sytem not the recovery. And 3 month after that new factory reset with no amelioration.
So i decide to install twrp and try a custom rom. I have a pixel C too and have all ready done that quitte a few time on mine.
That's when i discover that the pixel c of my gf didn't have any recovery install just a "no command" appears when booting in recovery mode.
I don't don't remember if it's normal or not.
So i try via fastboot to flash the last twrp and it won't let me do it cause the level of the battery is 0%...
So i have try to boot twrp via fastboot boot, it work but i can't use any usb fonction either use it has a link to my computer ( under windows 10 pro) or reading a usbkey.
I have nothing detected on windows when twrp is started but i have when on fastboot.
I have try the same with my pixel, boot via fastboot and windows detect the tablet, i can use adb and push files or read my usbkey.
Also i have try via a twrp session start from fastboot via boot to to a factory reset and now i have a "no command" when booting normally. I have check the size of the system partition and it's now 6MB...
I have try to find a command to force fastboot to flash by ignoring the battery level like "--force" or "-f" but it's an unknow argument.
I'm out of idea so if some one have a clue it will help alot.
I'm french so i hope, i'm beeing understandable here.
Thanks for your time.

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