Database Users

[Q] 4.2 update - boot.img checksum fail. Broken LNX device?

When I try to update the N7 to 4.2 using adb sideload it fails at the "Verifying current system..." stage.
I get this:
assert failed: apply_patch_check("EMMC:/dev/block/platform/sdhci-tegra.3/by-name/LNX: ... ")
From searching the threads I figured out LNX is the boot.img
I got the device today and have not tampered with it in any way. No unlock, no root, only installed a couple of apps from the play store.
I first tried the OTA update which failed and after reboot it came back 4.1.2.
Then I tried fastboot + adb sideload, where I got the above error message. I assume the same error is what causes the OTA update to fail.
I can not see any reason why the LNX device would have been changed by anything I did.
Is this a sign that the LNX device is broken?
Or is it safe to just flash the full 4.2 factory image?

I solved the problem.
I'm not sure why the boot image did not have a proper checksum, but flashing the original 4.1.2 boot image from googles factory image fixed it.
After that the upgrade to 4.2 worked.

How do I do that?
rundgong said:
I solved the problem.
I'm not sure why the boot image did not have a proper checksum, but flashing the original 4.1.2 boot image from googles factory image fixed it.
After that the upgrade to 4.2 worked.
Click to expand...
Click to collapse
I think I have a similar problem and I would like to know how to flash the original 4.1.2 boot image from google's factory image.
Problem: Trying to update my Nexus 7 looks like there is something wrong with this:
...
verifying current system...
assert failed: apply_patch_check("EMMC:/dev/block/platform/sdhci-tegra.3/by-name/LNX:..............")
Installation aborted.
Thank you.

miguelaso_mx said:
I think I have a similar problem and I would like to know how to flash the original 4.1.2 boot image from google's factory image.
Problem: Trying to update my Nexus 7 looks like there is something wrong with this:
...
verifying current system...
assert failed: apply_patch_check("EMMC:/dev/block/platform/sdhci-tegra.3/by-name/LNX:..............")
Installation aborted.
Thank you.
Click to expand...
Click to collapse
Download the factory image for 4.1.2 from here:
https://developers.google.com/android/nexus/images
Extract the archives and you find boot.img inside.
You then flash the boot.img using fastboot.
You also need to unlock the bootloader if you didn't already do that.
After that you should be able to upgrade it.
There are other threads that will teach you how to do both flashing and unlocking.

I had the same exact problem as miguelaso_mx. I would recommend to use the Google Nexus 7 Toolkit as it makes the steps to fix this a breeze.
1) Install Toolkit
2) Run Toolkit
3) Put device in fastboot (Power + Volume Down)
4) Unlock bootloader
5) Download and flash factory image
6) Put device back in fastboot after reboot
7) lock bootloader
Your device is now ready for OTA updates.

I have this exact problem, and will definitely try this out, thanks.
Will just flashing the boot image, delete any data? I mean, if it is just the boot image, I guess i don't have to flash the entire factory image(s) right?
I would hate to play all the angry bird star wars levels again

Thank you
rundgong said:
Download the factory image for 4.1.2 from here:
https://developers.google.com/android/nexus/images
Extract the archives and you find boot.img inside.
You then flash the boot.img using fastboot.
You also need to unlock the bootloader if you didn't already do that.
After that you should be able to upgrade it.
There are other threads that will teach you how to do both flashing and unlocking.
Click to expand...
Click to collapse
Thank you for you answer. I have not done what you suggest because I don't want to lose my warranty. Depending on what they will tell me this Friday, I'll decide to do what you suggest...
Also, I'm going to help myself by following instructions on these websites:
http://www.droid-life.com/2012/07/17/how-to-unlock-the-nexus-7-bootloader/
http://forum.xda-developers.com/showthread.php?t=1752270
:laugh:
---------- Post added at 12:57 PM ---------- Previous post was at 12:52 PM ----------
JayOui said:
I had the same exact problem as miguelaso_mx. I would recommend to use the Google Nexus 7 Toolkit as it makes the steps to fix this a breeze.
1) Install Toolkit
2) Run Toolkit
3) Put device in fastboot (Power + Volume Down)
4) Unlock bootloader
5) Download and flash factory image
6) Put device back in fastboot after reboot
7) lock bootloader
Your device is now ready for OTA updates.
Click to expand...
Click to collapse
Instead of doing this:
http://www.droid-life.com/2012/07/17/how-to-unlock-the-nexus-7-bootloader/
I'll go for the tool you mentioned. Thank you...

bzl said:
I have this exact problem, and will definitely try this out, thanks.
Will just flashing the boot image, delete any data? I mean, if it is just the boot image, I guess i don't have to flash the entire factory image(s) right?
I would hate to play all the angry bird star wars levels again
Click to expand...
Click to collapse
No, if you just flash the boot image it will not erase any user data

:laugh:
miguelaso_mx said:
Thank you for you answer. I have not done what you suggest because I don't want to lose my warranty. Depending on what they will tell me this Friday, I'll decide to do what you suggest...
Also, I'm going to help myself by following instructions on these websites:
http://www.droid-life.com/2012/07/17/how-to-unlock-the-nexus-7-bootloader/
http://forum.xda-developers.com/showthread.php?t=1752270
:laugh:
---------- Post added at 12:57 PM ---------- Previous post was at 12:52 PM ----------
Instead of doing this:
http://www.droid-life.com/2012/07/17/how-to-unlock-the-nexus-7-bootloader/
I'll go for the tool you mentioned. Thank you...
Click to expand...
Click to collapse
THANK YOU TO ALL... IT DID SOLVED THE PROBLEM...

[GUIDE] How install recovery on LG L Bello [D335]

Whatever you do with your phone at your own risk!
And so dudes came the moment when my idea to do something with this devaysom realized.
We have unlocked bootloader without checking signatures rekaveri and core!
Putting only D335 (5.0.2.) Because on 4.4.2 we receiving bricks!
Let's start!
1. For unlock boot and getting CWM will need Root rights and Android Terminal
2. All the files which will be used here and there ( loader and CWM) are here PhilZCWM/TWRP/uboot.img
3.So launch Terminal.
su
dd if=/storage/external_SD/uboot.img of=/dev/uboot count=1024.
Huray we have got unlock boot.
5.So go back to the terminal and write
su
dd if = / storage / external_SD / recovery.img of = / dev / recovery count = 32768
6.go in recovery can be either a terminal command
su
reboot recovery
Either way:
Hold the volume down and power button, wait for the logo and let go once again press the navigation buttons volume produced, the selection of double-pressing the power button. We agree to reset and get into rekaveri. Do not be alarmed data will remain on the site!
Thanks:
@hanuma50 - made Recovery
@Plamb1r - unlock boot.
Download here:
PhilZCWM/TWRP/uboot.img

Can we use it for the D331?

Macmol said:
Can we use it for the D331?
Click to expand...
Click to collapse
Only fo D335

thank you for the method,my friend.
but,can you give me the link of how to root d335 on android 5?
i'm very looking for this

thE AlpHa said:
thank you for the method,my friend.
but,can you give me the link of how to root d335 on android 5?
i'm very looking for this
Click to expand...
Click to collapse
Hello my friend,
i rooted my d335 android 5.0 with this tool:
http://forum.xda-developers.com/devdb/project/dl/?id=13663&task=get

thE AlpHa said:
thank you for the method,my friend.
but,can you give me the link of how to root d335 on android 5?
i'm very looking for this
Click to expand...
Click to collapse
U can root lg l bello with king root app without using pc

I instled recovery on lg d335 5.0.2 and my phone was hard bricked. I some how managed to repair my phone and my phone was downgraded to 4.4 after repair.
So should i install this recovery on 4.4 or not or upgrade my phone to lollipop???

Jzjs said:
I instled recovery on lg d335 5.0.2 and my phone was hard bricked. I some how managed to repair my phone and my phone was downgraded to 4.4 after repair.
So should i install this recovery on 4.4 or not or upgrade my phone to lollipop???
Click to expand...
Click to collapse
No You can't you will brick your phone, Read OP
Putting only D335 (5.0.2.) Because on 4.4.2 we receiving bricks!
Click to expand...
Click to collapse

I am using LG L bello(d335)4.4.2 (it was my mistake that i flashed for wrong android version). I flashed above uboot.img file during installing recovery into my phone. My phone is currently not going into recovery mode or fastboot mode. its just vibrating showing led (no lg symbol displayed) and shutting off. What should i do. Can any1 plz help me. Is the above method appropriate for me. Can ny1 teach me. plz...

It is working with d331 BUT with d335 lolipop system. I was able to flash cyanogenmod

Hey. Tommy
How did you get rom for this phone?
I am not getting any rom for this.
Please share a link of that rom cm.
Will it work on d335 v5.0.1?

coolfure said:
Hey. Tommy
How did you get rom for this phone?
I am not getting any rom for this.
Please share a link of that rom cm.
Will it work on d335 v5.0.1?
Click to expand...
Click to collapse
Hère y ou gohttp://forum.xda-developers.com/android/development/-t3374627
Hit tanx if i help you:good:

Plamb1r said:
Whatever you do with your phone at your own risk!
And so dudes came the moment when my idea to do something with this devaysom realized.
We have unlocked bootloader without checking signatures rekaveri and core!
Putting only D335 (5.0.2.) Because on 4.4.2 we receiving bricks!
Let's start!
1. For unlock boot and getting CWM will need Root rights and Android Terminal
2. All the files which will be used here and there ( loader and CWM) are here PhilZCWM/TWRP/uboot.img
3.So launch Terminal.
su
dd if=/storage/external_SD/uboot.img of=/dev/uboot count=1024.
Huray we have got unlock boot.
5.So go back to the terminal and write
su
dd if = / storage / external_SD / recovery.img of = / dev / recovery count = 32768
6.go in recovery can be either a terminal command
su
reboot recovery
Either way:
Hold the volume down and power button, wait for the logo and let go once again press the navigation buttons volume produced, the selection of double-pressing the power button. We agree to reset and get into rekaveri. Do not be alarmed data will remain on the site!
Thanks:
@hanuma50 - made Recovery
@Plamb1r - unlock boot.
Download here:
PhilZCWM/TWRP/uboot.img
Click to expand...
Click to collapse
Links are not working, please update ASAP

Hi,
I have a D331, and happy with 4.4.2 but understand that I need to download D335 stock KDZ firmware (v20) in order to install this recovery.
But there are now many V20 firmware to download (countries, letters) - and you can even get some for D331. (Will a D331 5.0.2 also work?)
I suppose I'll loose custom recovery if I flash back to 4.4.2 (?)
For the D335 5.0.2 firmware download, does the letter matter or can I safely choose the last one?
Thank you!
Claude
P.S: a 4.4.2 custom recovery would nice an please many people...

Link dead
Link is dead or I am doing something wrong.

Hello, don't have any way to ubrick 4.4.2 ? flash a old uboot for example?
i have acess to fastboot
lg d337
i brick my phone :S

links are dead
please update

hello can u share me the link for dwnlding cm and recovery i m not getting any link
Tommy000 said:
It is working with d331 BUT with d335 lolipop system. I was able to flash cyanogenmod
Click to expand...
Click to collapse
share me the link please

Plamb1r said:
Whatever you do with your phone at your own risk!
And so dudes came the moment when my idea to do something with this devaysom realized.
We have unlocked bootloader without checking signatures rekaveri and core!
Putting only D335 (5.0.2.) Because on 4.4.2 we receiving bricks!
Let's start!
1. For unlock boot and getting CWM will need Root rights and Android Terminal
2. All the files which will be used here and there ( loader and CWM) are here PhilZCWM/TWRP/uboot.img
3.So launch Terminal.
su
dd if=/storage/external_SD/uboot.img of=/dev/uboot count=1024.
Huray we have got unlock boot.
5.So go back to the terminal and write
su
dd if = / storage / external_SD / recovery.img of = / dev / recovery count = 32768
6.go in recovery can be either a terminal command
su
reboot recovery
Either way:
Hold the volume down and power button, wait for the logo and let go once again press the navigation buttons volume produced, the selection of double-pressing the power button. We agree to reset and get into rekaveri. Do not be alarmed data will remain on the site!
Thanks:
@hanuma50 - made Recovery
@Plamb1r - unlock boot.
Download here:
PhilZCWM/TWRP/uboot.img
Click to expand...
Click to collapse
I no longer have my sd card and at the moment I can not buy one, if I put the command as sdcard, internal_SD or something of the type in the place of external_SD will it work to install the file from internal memory? If not, could you tell me a command that works? thanks for listening.

Hey dude, the links are dead... Please update them
Greetings,
Meghraj
---------- Post added at 12:50 PM ---------- Previous post was at 12:48 PM ----------
meghgoswami said:
Hey dude, the links are dead... Please update them
Greetings,
Meghraj
Click to expand...
Click to collapse
Hey!!! I found them : https://drive.google.com/file/d/0BzECVbeAMsEseDE0R2JsNXFFbWs/view
---------- Post added at 01:31 PM ---------- Previous post was at 12:50 PM ----------
:crying::crying::crying::crying::crying:Guys guys guys this is urgent!!!
I BRICKED MY D335 WHAT DO I DO NOW!!!
Plz HELP me ASAP!!:crying::crying::crying::crying:
---------- Post added at 01:32 PM ---------- Previous post was at 01:31 PM ----------
:crying::crying::crying::crying::crying:Guys guys guys this is urgent!!!
I BRICKED MY D335 WHAT DO I DO NOW!!!
Plz HELP me ASAP!!:crying::crying::crying::crying:

Huawei P8lite bootloop after update

hy guys,
i got an ALE-L21
after an update it stucks in the boot animation first comes the huawei logo and than the "android" banner - and that is going to stay .
i already tried to factory reset and flash the available stockroms on it
but it always says "software install failed"
it is also rooted what i guess caused the problem in the first place
do you guys have any ideas what else i can try
-can enter fastbootmode
-no custom recovery
Problem Solved :
- download a rom and extract it with Huawei Update Extractor
- enter fastboot mode and flash manually boot.img, recovery.img, system.img and cust.img on your p8 lite
---- afterwards your p8lite should boot normally and if you want you can now reinstall the whole rom normally
---- download a rom
------ extract it
--------- put the 'dload' folder in the root dictionary of your (empty)sd-card
-------------shut it down
----------------press volume up and down - and than the power button til' the update starts
thanks to fooox1 from android-hilfe.de

Reyengine said:
hy guys,
i got an ALE-L21
after an update it stucks in the boot animation first comes the huawei logo and than the "android" banner - and that is going to stay .
i already tried to factory reset and flash the available stockroms on it
but it always says "software install failed"
V100R001C432B052 (Dual SIM / Europe)
V100R001C432B041c (Europe)
V100R001C432B046b (West Europe)
those 3 didnt work - how do i figure out which one i need without starting the device to look for the build number
it is also rooted what i guess caused the problem in the first place
do you guys have any ideas what else i can try
-can enter fastbootmode
-no custom recovery
Problem Solved :
- download a rom and extract it with Huawei Update Extractor
- enter fastboot mode and flash manually boot.img, recovery.img, system.img and cust.img on your p8 lite
---- afterwards your p8lite should boot normally and if you want you can now reinstall the whole rom normally
---- download a rom
------ extract it
--------- put the 'dload' folder in the root dictionary of your (empty)sd-card
-------------shut it down
----------------press volume up and down - and than the power button til' the update starts
thanks to fooox1 from android-hilfe.de
Click to expand...
Click to collapse
Hi Reyengine,
My huawei P8 lite ALE-L21 stuck at boot loop, My phone was rooted, my brother who was not aware of care about rooted phones update and hit the recent update issued by huawei. after update it is not booting anymore.
I tried the following,
Installing stock Rom through SD card but error: first attempt stuck at 90% and after force restart brought it to update over WiFi on startup. Then failed again and after that just gets stuck on logo.
Now I can not update through SD card it gives error: "software install failed" a no update file message blink before error.
Phone is not recognized in adb interface anymore.
Can you guide me in details, I am new to xda and not so good in fixing phones. Your help is appreciated. Thanks.
How to enter in Fastboot...?

shahper1 said:
Hi Reyengine,
My huawei P8 lite ALE-L21 stuck at boot loop, My phone was rooted, my brother who was not aware of care about rooted phones update and hit the recent update issued by huawei. after update it is not booting anymore.
I tried the following,
Installing stock Rom through SD card but error: first attempt stuck at 90% and after force restart brought it to update over WiFi on startup. Then failed again and after that just gets stuck on logo.
Now I can not update through SD card it gives error: "software install failed" a no update file message blink before error.
Phone is not recognized in adb interface anymore.
Can you guide me in details, I am new to xda and not so good in fixing phones. Your help is appreciated. Thanks.
How to enter in Fastboot...?
Click to expand...
Click to collapse
yep thats the problem i had too
... for some reason you have to plug it onto your pc to start fastboot mode
volume down and power button

Reyengine said:
yep thats the problem i had too
... for some reason you have to plug it onto your pc to start fastboot mode
volume down and power button
Click to expand...
Click to collapse
I tried this many times even connected to PC as I am using usb cable connected to PC to keep it's battery up.. but it won't go to fastboot and keeps getting into boot loop. What to do..

shahper1 said:
I tried this many times even connected to PC as I am using usb cable connected to PC to keep it's battery up.. but it won't go to fastboot and keeps getting into boot loop. What to do..
Click to expand...
Click to collapse
ok
when in bootloop hold the powerbutton til it shut off (and now i think it will reboot automatically ) --- so as soon as it vibrates and the reboot beginns hold volume down and power
if it didnt work try this
boot into (e)recovery and try to shut it off and than try to boot into fastboot

Reyengine said:
ok
when in bootloop hold the powerbutton til it shut off (and now i think it will reboot automatically ) --- so as soon as it vibrates and the reboot beginns hold volume down and power
if it didnt work try this
boot into (e)recovery and try to shut it off and than try to boot into fastboot
Click to expand...
Click to collapse
No Luck...It got into boot loader once, but not into fastboot, I tried every way you explained but nothing seems to work...
Any other way...or what I might be doing wrong...!!!
In boot loader it was showing adb interface....It is acting strange some time it takes 4, 5 attempt even to go to e-recovery...
---------- Post added at 05:46 PM ---------- Previous post was at 05:06 PM ----------
shahper1 said:
No Luck...It got into boot loader once, but not into fastboot,...
Click to expand...
Click to collapse
Let me know one thing...What screen it will show in "Fastboot"...? Blank or ......?
Thanks for staying with me...

p8 lite ale-l21
can anyone please guide me how to flash files via fastboot

Problem Solved
I was misunderstanding the Fastboot Screen of it at first but found some more important checks; thought let others know...First thank you for putting me on to right track.
You were right, to get into fastboot phone to be connected to PC with USB cable, I just changed the port to e-SATA and it got into "fastboot"... Just need to change the USB port or PC to get rid of problem of getting into fastboot.
1: I did flash by adb fastboot "Boot.img, Recovery.img, Cust.img" but System.img was giving every time error could not be done by adb fastboot. (may be size reason..!!) and did below.
2: Copied Rom "Update.app" in folder "dload" in SD card, Restarted the phone and by pressing Volume+&- on boot updated the system software...(It got error at 90% as it happened with me earlier too and saw people complaining in other forums as well.) Solution is simple..(Phone to be disconnected from PC during update through SD card..otherwise it get stuck at 90%..) I checked by force shutdown and pulling SD out and kept USB connected, it again start installation on restart but stuck again at 90%...
Updated to latest update with no problems...
Anyway, Thanks a lot for your tips which made my day...kudos..
---------- Post added at 08:13 PM ---------- Previous post was at 08:04 PM ----------
[email protected] said:
can anyone please guide me how to flash files via fastboot
Click to expand...
Click to collapse
Check this: http://forum.xda-developers.com/showthread.php?t=2131284

shahper1 said:
Problem Solved
I was misunderstanding the Fastboot Screen of it at first but found some more important checks; thought let others know...First thank you for putting me on to right track.
You were right, to get into fastboot phone to be connected to PC with USB cable, I just changed the port to e-SATA and it got into "fastboot"... Just need to change the USB port or PC to get rid of problem of getting into fastboot.
1: I did flash by adb fastboot "Boot.img, Recovery.img, Cust.img" but System.img was giving every time error could not be done by adb fastboot. (may be size reason..!!) and did below.
2: Copied Rom "Update.app" in folder "dload" in SD card, Restarted the phone and by pressing Volume+&- on boot updated the system software...(It got error at 90% as it happened with me earlier too and saw people complaining in other forums as well.) Solution is simple..(Phone to be disconnected from PC during update through SD card..otherwise it get stuck at 90%..) I checked by force shutdown and pulling SD out and kept USB connected, it again start installation on restart but stuck again at 90%...
Updated to latest update with no problems...
Anyway, Thanks a lot for your tips which made my day...kudos..
---------- Post added at 08:13 PM ---------- Previous post was at 08:04 PM ----------
Check this: http://forum.xda-developers.com/showthread.php?t=2131284
Click to expand...
Click to collapse
what do you mean by remove from pc through sd card? because when I remove usb cable, update stops and asks to restart the phone .

schahid said:
what do you mean by remove from pc through sd card? because when I remove usb cable, update stops and asks to restart the phone .
Click to expand...
Click to collapse
Phone should not be connected to PC (USB cable) while updating through SD card, that's it.

shahper1 said:
Phone should not be connected to PC (USB cable) while updating through SD card, that's it.
Click to expand...
Click to collapse
The problem is, it never starts updating when not connected to PC. as soon as I conneft it to PC and restart with volume up down and power it starts updating.
Any suggestions ?

[email protected] said:
can anyone please guide me how to flash files via fastboot
Click to expand...
Click to collapse
-first you need platform tools from the android sdk ( a folder with a few files in it)
-start cmd and navigate to that folder
-connect phone to pc and boot into fast boot
-typ in cmd 'fastboot devices' now there should come something like "0102034012011 fastboot " --- which means you phone got recognized
-download a rom and extract it with Huawei Update Extractor
-put the files boot.img, recovery.img, system.img and cust.img into the platformtools folder
-and now typ ''fastboot flash boot boot.img'' press enter and wait til its done and than the next 'fastboot flash recovery recovery.img'' and so on...

Cannot find on fastboot
Did same adb devices showing no yield, did reinstall drivers, remove install clean still not showing.
Able to get into fastboot/recovery , firmware recovery
- i tried copying P8 Lite B044 EMUI 3.1 firmware to SD but running recovery it fails at 0% "Software install failed!" on firmware recovery. FML assist please!
update-
Fastboot working tried flash recovery.img & boot.img. still going back to old recovery and not one on SD. Doing recovery gets stuck on 90% as it did with OTA update.

hey @Reyengine u used any rom for your flash for fastboot? even i dnt know my build no.

rkandroids said:
hey @Reyengine u used any rom for your flash for fastboot? even i dnt know my build no.
Click to expand...
Click to collapse
yea, i think all of them will work as long as you got the same model(ALE-L21 )
but i dont understand why someone are with dualsim and some without

C:\Users\Marek\Desktop\p8ROOT\data>fastboot flash system SYSTEM.img
error: cannot load 'SYSTEM.img'
srsl?!
---------- Post added at 04:49 PM ---------- Previous post was at 04:26 PM ----------
C:\Users\Marek\Desktop\Minimal ADB and Fastboot>fastboot flash system SYSTEM.img
target reported max download size of 471859200 bytes
sending sparse 'system' (460798 KB)...
FAILED (data transfer failure (Too many links))
finished. total time: 8.416s

qverkk said:
C:\Users\Marek\Desktop\p8ROOT\data>fastboot flash system SYSTEM.img
error: cannot load 'SYSTEM.img'
srsl?!
---------- Post added at 04:49 PM ---------- Previous post was at 04:26 PM ----------
C:\Users\Marek\Desktop\Minimal ADB and Fastboot>fastboot flash system SYSTEM.img
target reported max download size of 471859200 bytes
sending sparse 'system' (460798 KB)...
FAILED (data transfer failure (Too many links))
finished. total time: 8.416s
Click to expand...
Click to collapse
i had this problem when i flashed a stock rom on a nexus5 with the bat file ... than i flashed all files manually and it worked
but i cant help you with that one
the only thing i got in mind -- download the newest version of the android sdk to get the newest version of the platform tools
i dont even know if they were updated - maybe complete bull**** - but give it a try

Now it works, i downloaded minimal adb and fastboot 1.3.1 and flashed everything again thanks

Throws me a message ADB unauthorized devices...
I got the "update" ,Now the phone is entered in boo-tloop and can not get away from him. I tried everything .... I noticed that the problem is in the connections. My computer does not recognize the phone is in your Task Manager. Throws me a message ADB unauthorized devices... Can someone please help me ??

StrawShack said:
Did same adb devices showing no yield, did reinstall drivers, remove install clean still not showing.
Able to get into fastboot/recovery , firmware recovery
- i tried copying P8 Lite B044 EMUI 3.1 firmware to SD but running recovery it fails at 0% "Software install failed!" on firmware recovery. FML assist please!
update-
Fastboot working tried flash recovery.img & boot.img. still going back to old recovery and not one on SD. Doing recovery gets stuck on 90% as it did with OTA update.
Click to expand...
Click to collapse
Hi StrawShack, I have the same problem, I can't see the device in adb. I think I've disabled the USB debugging mode and now I don't know how to enable with the phone still bootloop.
Can't flash anything, tried to update via SD but doesn't work.
How did you get fastboot working?
---
update: Done!
connect to the PC via USB and enter in eRecovery mode (hold power button and volume up) then shutdown
disconnect USB cable, then hold volume down and plug again the USB.
at this point I still can't see the device in adb, but if you flash with fastboot it will work!

[ZE500KL] Can't load invalid boot image!

Hello,
I tried to root my Zenfone 2 ZE500KL but i didn't see that the method don't work with Android 6. Now, when I start my phone i have the message "ERROR: Can't load invalid boot image" with the ASUS Logo.
I tried a lot of things using ADB, like go to the recovery mode for format, installing from the ROM again from my SD. But the message stay...
I need your help now, car I don't find anything... Thanks !

CzeroXCI said:
Hello,
I tried to root my Zenfone 2 ZE500KL but i didn't see that the method don't work with Android 6. Now, when I start my phone i have the message "ERROR: Can't load invalid boot image" with the ASUS Logo.
I tried a lot of things using ADB, like go to the recovery mode for format, installing from the ROM again from my SD. But the message stay...
I need your help now, car I don't find anything... Thanks !
Click to expand...
Click to collapse
Download this boot.img for Marshmallow v.13.10.7.1
https://drive.google.com/file/d/0B7F3ZXr565GkV2N3WjBoeEZXUUU/view?usp=drivesdk
The command from fasboot mode:
fastboot flash boot boot.img

Muminek111 said:
Download this boot.img for Marshmallow v.13.10.7.1
https://drive.google.com/file/d/0B7F3ZXr565GkV2N3WjBoeEZXUUU/view?usp=drivesdk
The command from fasboot mode:
fastboot flash boot boot.img
Click to expand...
Click to collapse
My phone version is 13.10.10.34 can I flash this boot image????

Sharashchandra said:
My phone version is 13.10.10.34 can I flash this boot image????
Click to expand...
Click to collapse
You need to boot.img from stock rom v 13.10.10.34.
Stock rom you can download from Asus website and then extract boot.img from this stock rom.

Sharashchandra said:
My phone version is 13.10.10.34 can I flash this boot image????
Click to expand...
Click to collapse
Plz help I used twrp v2.8.7.7seven max then
Its booted and showing in modified partition.ileave it as it is and I just backup the system but after backup when I press reboot system it will just freezed .then manually I switched on its showing "ERROR: Can't load invali boot image" two phones are under same condition plz help me its my friends phone.
Help me as fast as possible
---------- Post added at 01:13 PM ---------- Previous post was at 01:11 PM ----------
Muminek111 said:
You need to boot.img from stock rom v 13.10.10.34.
Stock rom you can download from Asus website and then extract boot.img from this stock rom.
Click to expand...
Click to collapse
Plz help I used twrp v2.8.7.7seven max then
Its booted and showing in modified partition.ileave it as it is and I just backup the system but after backup when I press reboot system it will just freezed .then manually I switched on its showing "ERROR: Can't load invali boot image" two phones are under same condition plz help me its my friends phone.
Help me as fast as possible

Sharashchandra said:
Plz help I used twrp v2.8.7.7seven max then
Its booted and showing in modified partition.ileave it as it is and I just backup the system but after backup when I press reboot system it will just freezed .then manually I switched on its showing "ERROR: Can't load invali boot image" two phones are under same condition plz help me its my friends phone.
Help me as fast as possible
---------- Post added at 01:13 PM ---------- Previous post was at 01:11 PM ----------
Plz help I used twrp v2.8.7.7seven max then
Its booted and showing in modified partition.ileave it as it is and I just backup the system but after backup when I press reboot system it will just freezed .then manually I switched on its showing "ERROR: Can't load invali boot image" two phones are under same condition plz help me its my friends phone.
Help me as fast as possible
Click to expand...
Click to collapse
I don't understand what your problem.
For Marshmallow use this TWRP.
https://drive.google.com/file/d/0B7F3ZXr565GkY28yUjhfRkd5MUk/view?usp=drivesdk
Another possibility how to fix your phone is flash stock rom from stock recovery. It's the easiest way.

Muminek111 said:
I don't understand what your problem.
For Marshmallow use this TWRP.
https://drive.google.com/file/d/0B7F3ZXr565GkY28yUjhfRkd5MUk/view?usp=drivesdk
Another possibility how to fix your phone is flash stock rom from stock recovery. It's the easiest way.
Click to expand...
Click to collapse
After flashing also the same problem persists
Thankyou

Sharashchandra said:
After flashing also the same problem persists
Thankyou
Click to expand...
Click to collapse
Do you tried to flash Asus stock rom v.13.10.10.34(1.4gb) from Asus stock recovery v.13.10.10 34. I don't mean flash from TWRP.

Hello M having ASUS ZenFone 2 laser ze550kl model with marshmallow version.. I tried to unlock boot loader but m unable to do so.. Please help me..

just flash this zip https://yadi.sk/d/0NFnYyTG36XzWv using TWRP recovery(in menu "install").
just flash this..
it works perfectly fine

make sure you use the latest TWRP for your device.

Hey bro you can watch this video and follow the steps then your phone will definitely right back.....
https://youtu.be/_Ca10N-XQJk

I have also this problem .
But i can't enter in the recovery menu , it doesn't work.
P.S. sorry for my english

Muminek111 said:
Do you tried to flash Asus stock rom v.13.10.10.34(1.4gb) from Asus stock recovery v.13.10.10 34. I don't mean flash from TWRP.
Click to expand...
Click to collapse
Well, i can feel some doubt in your post...but h*ll yeah! I'm currently facing the same problem; where flashing stock rom, downloaded from their site, using their stock recovery, adb, and adb sideload....
the rom flashes successfully, but still boots with the same error...To be frank, i'm fed up...and almost about giving up on this phone...
-i believe i'll give it another shot this very night, trying different methods...funny ones though; if and when they work, i will definitely update my post again... my phone version is Z00ED, in case anybody cares to know -
UPDATE:
=======
Aaaaaanyway, I downloaded 2 kinds of stock roms from the Asus official site;
1. UL-ASUS_Z00E-WW-13.1010.1612.53-user (the latest:- M) and...
2. UL-ASUS_Z00E-WW-12.8.5.222-user (and older version:- actually, the pre-installed version)
after flashing the first one over and over again; after and before wiping my phone and cache over and over again, NOTHING HAPPENED; no change!!! still kept throwing back the error message.
So I decided to flash the second one, and for a split second, I was happy cos the error had disappear...only for me to wait for eternity and in vain for the phone to boot (that is, even if it could). suddenly, I realized what had happen....the phone couldn't boot pass the ASUS logo, neither could it load recovery again (as it used to). It only boots into ADB, but of course, that will require USB DEBUG MODE to be ON to be able for the phone to be detected through ADB (which is far from possible due to the numerous wipes I performed).
CURRENT SITUATION: I can't ADB, I can't get into recovery, and I'm stacked with the logo at boot......when the phone is completely turned off and placed on charge, the battery shows an empty battery with the loading (status) sign (but it charges, even without the OS being able to display the process).
Don't know whether anyone is facing same, or I can start a new thread with this? and I need help before taking it to a 3rd party repairs (since we don't hv Asus customer care in our country yet).
Will be glad to find help.
PS: The computer still detects the phone as an ADB Android device, and to me, that's a beacon of hope.

abodan09 said:
Well, i can feel some doubt in your post...but h*ll yeah! I'm currently facing the same problem; where flashing stock rom, downloaded from their site, using their stock recovery, adb, and adb sideload....
the rom flashes successfully, but still boots with the same error...To be frank, i'm fed up...and almost about giving up on this phone...
-i believe i'll give it another shot this very night, trying different methods...funny ones though; if and when they work, i will definitely update my post again... my phone version is Z00ED, in case anybody cares to know -
Click to expand...
Click to collapse
This problem will resolve to open the bootloader.

Muminek111 said:
This problem will resolve to open the bootloader.
Click to expand...
Click to collapse
I don't think I got that...do u mind explaining further??? thank you!

abodan09 said:
I don't think I got that...do u mind explaining further??? thank you!
Click to expand...
Click to collapse
You can not flash the older version stock rom from stock recovery.
Flash latest stock rom.
Download this twrp: https://drive.google.com/file/d/0B7F3ZXr565GkY28yUjhfRkd5MUk/view?usp=drivesdk
Download this ulock bootloader: https://drive.google.com/file/d/0B7F3ZXr565GkMWNwUkZJa1BUVUU/view?usp=drivesdk
Download this supersu: https://drive.google.com/file/d/0B7F3ZXr565GkOTcxb2VPbmQzT2M/view?usp=drivesdk
Restart to fasboot mode.
Command: fastboot boot twrp.img
From twrp flash first zip ulock bootloder then flash zip supersu.
Reboot.
---------- Post added at 08:39 PM ---------- Previous post was at 08:15 PM ----------
Android 6
Must be first opened bootloader then can modified boot image.

Same ERROR,you just need to flash the unlock bootloader file
UnlockBL.zip
Click to expand...
Click to collapse
https://goo.gl/nVq9e7

i have installed new firmware on my zenfone laser 2 (ze500kl),but when restarts it says error cant load invalid boot image...then i fastbooted boot.img..but when i restarts the phone it again shows the errror...
pls help me..

christin7 said:
i have installed new firmware on my zenfone laser 2 (ze500kl),but when restarts it says error cant load invalid boot image...then i fastbooted boot.img..but when i restarts the phone it again shows the errror...
pls help me..
Click to expand...
Click to collapse
Test:
Try to flash boot.img of your firmware version from fastboot mode but use command: fastboot boot boot.img. Reboot system. Then let me know.

[ZE500KL] ERROR: Can't load invalid boot image .

As the title says , I got this error after a failed root attempt .
I tried alot of methods , but none of them worked . Can you guys please help me ?

keehlu said:
As the title says , I got this error after a failed root attempt .
I tried alot of methods , but none of them worked . Can you guys please help me ?
Click to expand...
Click to collapse
You must open the bootloader and again make the root of phone.
Functional is only the command:
fastboot boot boot.img
but only until the first reboot your phone.

Muminek111 said:
You must open the bootloader and again make the root of phone.
Functional is only the command:
fastboot boot boot.img
but only until the first reboot your phone.
Click to expand...
Click to collapse
I fixed it eventually . I flashed TWRP and the firmware and it worked .

How to know which is the right rom to flash? I've tried flashing first three roms from the asus site (Firmwares for ZF 2 Laser) but I still keep on getting the Cant Load Invalid boot img error
---------- Post added at 06:24 AM ---------- Previous post was at 06:18 AM ----------
Also keehlu what firmware did you use?

_Alter said:
How to know which is the right rom to flash? I've tried flashing first three roms from the asus site (Firmwares for ZF 2 Laser) but I still keep on getting the Cant Load Invalid boot img error
---------- Post added at 06:24 AM ---------- Previous post was at 06:18 AM ----------
Also keehlu what firmware did you use?
Click to expand...
Click to collapse
I flashed the latest ROM and it worked .

keehlu said:
I fixed it eventually . I flashed TWRP and the firmware and it worked .
Click to expand...
Click to collapse
What firmware did you use? I need help badly thanks
---------- Post added at 01:48 PM ---------- Previous post was at 01:47 PM ----------
keehlu said:
I flashed the latest ROM and it worked .
Click to expand...
Click to collapse
By latest you mean 44? You flashed it using? And also do you still get error from invalid boot image? Also if you restart does this still happen or it is now fixed permanently?

It worked for me but just one time i used adb command fastboot boot boot.img but boot.img should be of ur firmware mine is ww 13.10.10.44 u can find it in ur firmware just extract it and u will get it. and its temporary u won't be able to restart ur phone if u restart the same problem will occur again u have to enter in fastboot and and u have to use the same command.
Note:boot.img file should be placed in the adb folder(where u have installed the adb)and u have to open cmd in adb folder only.