Develop Bugs

[GUIDE][FIX]Cant unlock bootloader? Read here for a Fix

Hey guys , here's a simple guide on how to unlock your bootloader without having to downgrade all the way back to 2.17, in my case i had 2.17 system since it was the most stable(2.18 is a cluster hell of bugs) with 2.18 bootloader and recovery(yes you can mix and match)and so i went to try the bootloader unlock with just flashing the 2.19 system.img, that dint do anything the "getprop ro.isn > /factory/asuskey" command would do nothing, the bootloader wasnt unlock and so i did the following:
1.Downloaded the2.19 ota manually here link
2. I extracted the droidboot.img(fastboot img) from the 2.19 ota zip
3.Rebooted to fastboot mode
4. Then ran this command "fastboot flash fastboot droidboot.img"
5,After this i rebooted back into system and rerun the unlock bootloader steps and viola the bootloader unlocked!( it wasn't before simply because the 2.18 fastboot does not have this unlock command)
6.After you unlock the bootloader your device will most likely get stuck at the bootanimation screen, at this time reboot back into fastboot mode and downloaded the black splashscreen here and run "fastboot flash splashscreen splashscreen.img". then reboot back to system and your device should boot all the way into your homescreen and your done =]
All credits go to ssj and shakalacas(ota links splashscreen link) for the bootloader unlock.
THIS WILL NOT WIPE ANYTHING ON YOUR DEVICE, if you mess up the commands thats on you follow the guide properly and everything will be fine.

That second link is trying to run some chrome extension, not download the file?
---------- Post added at 11:35 AM ---------- Previous post was at 11:27 AM ----------
I think this is the file you were trying to link to:
https://mega.co.nz/#!IlMGiZ7I!kepXRFda7cgNPWHQovkCZaMaD2zVF4UufAJT6YEDU3k

I'm on 2.18 and rooted. Problem is, I uninstalled or disabled a bunch of ASUS apps, will I have an issue if I use SuperSU to unroot and try to restore or upgrade my phone to 2.19?
Also, I have model number ASUS_Z00AD. Is this firmware OK to install on my phone?

cmendonc2 said:
That second link is trying to run some chrome extension, not download the file?
---------- Post added at 11:35 AM ---------- Previous post was at 11:27 AM ----------
I think this is the file you were trying to link to:
https://mega.co.nz/#!IlMGiZ7I!kepXRFda7cgNPWHQovkCZaMaD2zVF4UufAJT6YEDU3k
Click to expand...
Click to collapse
Fixed.

edit: nvm...

Both download links link to the same file. splashscreen.img

Uh.. wtf? Since when has the boot loader been unlocked? I was under the impression that we were waiting for an unlock tool as has been discussed in a few threads.. is this legit?
Edit: nevermind.. I stop looking for a day or two and this device's boot loader is unlocked. I am very excited and glad that I picked this device as it seems like it is in for a lot of love

jpacleb85 said:
Uh.. wtf? Since when has the boot loader been unlocked? I was under the impression that we were waiting for an unlock tool as has been discussed in a few threads.. is this legit?
Edit: nevermind.. I stop looking for a day or two and this device's boot loader is unlocked. I am very excited and glad that I picked this device as it seems like it is in for a lot of love
Click to expand...
Click to collapse
LOL... Gotta love the devs who tinker on here... Now we might actually get a recovery that will do nandroid backups in case of those "little" mistakes/problems that crop up from time to time...

MiCmAsTa said:
Both download links link to the same file. splashscreen.img
Click to expand...
Click to collapse
Fixed.

This is probably a silly question, but I have the ZE550ML and the latest update is 2.18, meaning that unlocking the bootloader it is still not possible can I install droidboot.img(fastboot img) from the 2.19 ZE551ML on my device? Or that will just hard brick my device?
Let me know your thoughts on this.
Continue the great work XDA crew =)

I am on 2.18 and can't seem to find any way to update to 2.19, all the links are dead.
so I rooted and flashed droidboot, but when i run the adb commands it says unlock failed and restarts
any help would be greatly appreciated

PsychoKilla666 said:
I am on 2.18 and can't seem to find any way to update to 2.19, all the links are dead.
so I rooted and flashed droidboot, but when i run the adb commands it says unlock failed and restarts
any help would be greatly appreciated
Click to expand...
Click to collapse
You need to flash the pre rooted 2.19 system.img, then you will be able to unlock, since 2.19 has the unlock files in system.

rafyvitto said:
You need to flash the pre rooted 2.19 system.img, then you will be able to unlock, since 2.19 has the unlock files in system.
Click to expand...
Click to collapse
Link please? and how to?

error
rafyvitto said:
Hey guys , here's a simple guide on how to unlock your bootloader without having to downgrade all the way back to 2.17, in my case i had 2.17 system since it was the most stable(2.18 is a cluster hell of bugs) with 2.18 bootloader and recovery(yes you can mix and match)and so i went to try the bootloader unlock with just flashing the 2.19 system.img, that dint do anything the "getprop ro.isn > /factory/asuskey" command would do nothing, the bootloader wasnt unlock and so i did the following:
1.Downloaded the2.19 ota manually here link
2. I extracted the droidboot.img(fastboot img) from the 2.19 ota zip
3.Rebooted to fastboot mode
4. Then ran this command "fastboot flash fastboot droidboot.img"
5,After this i rebooted back into system and rerun the unlock bootloader steps and viola the bootloader unlocked!( it wasn't before simply because the 2.18 fastboot does not have this unlock command)
6.After you unlock the bootloader your device will most likely get stuck at the bootanimation screen, at this time reboot back into fastboot mode and downloaded the black splashscreen here and run "fastboot flash splashscreen splashscreen.img". then reboot back to system and your device should boot all the way into your homescreen and your done =]
All credits go to ssj and shakalacas(ota links splashscreen link) for the bootloader unlock.
THIS WILL NOT WIPE ANYTHING ON YOUR DEVICE, if you mess up the commands thats on you follow the guide properly and everything will be fine.
Click to expand...
Click to collapse
I follow this method and received the following error on CMD
writing 'fastboot'....
FAILED (remote: falsh_cmds error!
Finished. total time: 0.830

im on 2.20 and it wont let me do anything.. i get the white boot screen instead of black but bootloader doesnt exist and it wont download twrp any suggestions?

Success
My phone's recovery stopped working, and the bootloader was locked, but I found this thread. I think I was able to get it working.
I extracted the droidboot.img from the file in the OP.
I copied the droidboot.img to my working directory, and tried to flash it.
Code:
C:\myworkingdirectory>fastboot flash fastboot droidboot.img
target reported max download size of 536870912 bytes
sending 'fastboot' (14410 KB)...
OKAY [ 0.661s]
writing 'fastboot'...
FAILED (remote: Permission denied
)
finished. total time: 0.826s
Ok, I got the error. Maybe the "unlock" command will work.
Code:
C:\myworkingdirectory>fastboot oem shell_cmd "getprop ro.isn > /factory/asuskey"
...
OKAY [ 0.203s]
finished. total time: 0.204s
Same output as the last hundred times I tried to run it.
I rebooted the phone.
Code:
C:\myworkingdirectory>fastboot reboot-bootloader
rebooting into bootloader...
OKAY [ 0.108s]
finished. total time: 0.109s
I put the phone into the bootloader mode. (For anyone reading, to get into the bootloader, turn the phone completely off. Hold the power button until it vibrates. Then hold the volume up key.)
I ran the unlock command twice.
Code:
C:\myworkingdirectory>fastboot oem shell_cmd "getprop ro.isn > /factory/asuskey"
...
OKAY [ 0.291s]
finished. total time: 0.326s
C:\myworkingdirectory>fastboot oem shell_cmd "getprop ro.isn > /factory/asuskey"
...
OKAY [ 0.216s]
finished. total time: 0.216s
Then I tried to flash the image again.
Code:
C:\myworkingdirectory>fastboot flash fastboot droidboot.img
target reported max download size of 536870912 bytes
sending 'fastboot' (14410 KB)...
OKAY [ 0.690s]
writing 'fastboot'...
OKAY [ 0.692s]
finished. total time: 1.384s
No error?! I have progress!
------
I believe my bootloader is unlocked. Let me try to flash the recovery. (My recovery was corrupted longggg before doing this.)
Code:
C:\myworkingdirectory>fastboot flash recovery recovery.img
target reported max download size of 536870912 bytes
sending 'recovery' (11676 KB)...
OKAY [ 0.579s]
writing 'recovery'...
OKAY [ 0.571s]
finished. total time: 1.153s
No permission error! (Before this, I would usually have gotten an error that says "FAILED (remote: Permission denied".)
---- Important Notes ----
NO WHITE BACKGROUND IN BOOTLOADER.
Many people have reported seeing an inverted background in the bootloader. I don't have that.
TRIPLE DOTS IN COMMAND PROMPT
The triple dots you see when I run the unlock command are actually there. They are not placeholders.
------------
Right now I'm booting into recovery mode to flash a ROM to the phone. I'll update if I get the phone working.

Root + Twrp Recovery Asus Zenfone Selfie (ZD551KL)(Z00T)

Pre-Requirement File for Selfie
★ Zenfone Selfie with Unlocked Bootloader ★
★ Zenfone Selfie Recovery ToolKit ★
How to Install TWRP Recovery On Zenfone Selfie
Step 1. Download and Install ADB fastboot tool on PC.
Step 2. Enable USB Debugging mode on ZenFone Selfie (Settings>Developer Options> USB Debugging)
Step 3. Extract Zenfone Selfie Recovery ToolKit
Step 4. Connect ZenFone Selfie with your PC
Step 5. At toolkit Folder Press shift + mouse right click > open command here
Step 6. Type these command in sequence (enter after each line):
adb reboot bootloader
fastboot flash recovery recovery.img
fastboot oem reboot -recovery
Step 9. Wait for the device restart and entered the recovery
Step 10. Done
Asus Zenfone Selfie Easy Root
::::::: Procedure Rooting Asus Zenfone Selfie:::::::
# go to twrp recovery by pressing (power button+ volume up
button)
#select Install from sd card > install zip from SD card > select – Root Zenfone Selfie.zip> yes.
#then a process will occur.
# wait untill it finished.
#then reboot your Asus Zenfone Selfie
Congrats, you have successfully Rooted Asus Zenfone Selfie
:good::highfive:
DISCLAIMER: I AM NOT RESPONSIBLE IF YOU BRICK YOUR DEVICE IN THE PROCESS. DO IT AT YOUR OWN RISK.

did u try on prerooted rom zenfone selfie ?

Hey will this work for Z00UD ?

pls help me , its stuck on
D:\DwnlData\asus_zenfone_selfie_recovery_toolkit>adb reboot bootloader
D:\DwnlData\asus_zenfone_selfie_recovery_toolkit>fastboot flash recovery recover
y.img
< waiting for device >
and on my Asus selfie just saw
Fastboot Mode!!!
and stuck on asus logo (

TWRP ?
Hi everyone !
So I tryed to install CM on my Asus zenfone (Z00UD) and everything worked with no problems until the fastboo oem reboot-recovery.
So I tryed to reboot while pressing the VOLUME DOWN key and i get to the original recovery mode.
My phone is still booting to the usual android when I boot without going in recovery.
So I guess TWRP flash didn't worked as excepted, but i remember it showing completed.
Is there a way to verify that TWRP isn't installed so i can re install it ?
Or is it another problem ?

Hiroyt01 said:
Hi everyone !
So I tryed to install CM on my Asus zenfone (Z00UD) and everything worked with no problems until the fastboo oem reboot-recovery.
So I tryed to reboot while pressing the VOLUME DOWN key and i get to the original recovery mode.
My phone is still booting to the usual android when I boot without going in recovery.
So I guess TWRP flash didn't worked as excepted, but i remember it showing completed.
Is there a way to verify that TWRP isn't installed so i can re install it ?
Or is it another problem ?
Click to expand...
Click to collapse
Hi,
Did you use all this three Codes???
"
adb reboot bootloader
fastboot flash recovery recovery.img
fastboot oem reboot -recovery
"

reddyarunm46 said:
Hi,
Did you use all this three Codes???
"
adb reboot bootloader
fastboot flash recovery recovery.img
fastboot oem reboot -recovery
"
Click to expand...
Click to collapse
Yes that is exactly what i used (Except replacing the recovery.img by the twrp.img name)
I also tryed fastboot oem reboot-recovery (without the space)

Hiroyt01 said:
Yes that is exactly what i used (Except replacing the recovery.img by the twrp.img name)
I also tryed fastboot oem reboot-recovery (without the space)
Click to expand...
Click to collapse
Instead of replacing the recovery.img by the twrp.img name jus replace "recovery" with the file name that you have downloaded!!!!
---------- Post added at 11:54 AM ---------- Previous post was at 11:51 AM ----------
Hiroyt01 said:
Yes that is exactly what i used (Except replacing the recovery.img by the twrp.img name)
I also tryed fastboot oem reboot-recovery (without the space)
Click to expand...
Click to collapse
If you have downloaded from the above link in the thread then dont replace anything just use the codes.

reddyarunm46 said:
Instead of replacing the recovery.img by the twrp.img name jus replace "recovery" with the file name that you have downloaded!!!!
---------- Post added at 11:54 AM ---------- Previous post was at 11:51 AM ----------
If you have downloaded from the above link in the thread then dont replace anything just use the codes.
Click to expand...
Click to collapse
I used dl.twrp.me/Z00T/ recovery (to get the latest), and I replaced "recovery.img" by "twrp-3.0.2-5-Z00T.img" in the fastboot comand line. I also put "twrp-3.0.2-5-Z00T.img" in the same folder as "recovery.img".
Should I try again the process with the recovery.img ?
Is it safe to try again to flash the recovery ? (I didn't try again the process because I don't know if it's safe)

Hiroyt01 said:
I used dl.twrp.me/Z00T/ recovery (to get the latest), and I replaced "recovery.img" by "twrp-3.0.2-5-Z00T.img" in the fastboot comand line. I also put "twrp-3.0.2-5-Z00T.img" in the same folder as "recovery.img".
Should I try again the process with the recovery.img ?
Is it safe to try again to flash the recovery ? (I didn't try again the process because I don't know if it's safe)
Click to expand...
Click to collapse
its all right....it worked for me..

Ok thanks, I'll try to flash again when getting home tonight.
Which of those 2 recovery do you recommend using ?

Hiroyt01 said:
Ok thanks, I'll try to flash again when getting home tonight.
Which of those 2 recovery do you recommend using ?
Click to expand...
Click to collapse
1st try with the recovery you downloaded for the thread . Then if you want to update you can do it as well using an TWRP App from play store ...

Can't install Twrp
I did as said above.
But I'm getting Failed to send data (Unknown error)
Please help me to install twrp

Asus zenfone selfie Z00UD android Marshmallow
Hello sir good afernoon,
Im Jon from Philippines and my problem is can you help me how to root my Asus zenfone selfie Z00UD running android marshmallow and install TWRP, because I dont know what to do. PLEASE help me sir.. GODBLESS

Stuck at "fastboot oem reboot -recovery"
C:\Users\StreetLuck\Desktop\Asus ZenFie\asus_zenfone_selfie_recovery_toolkit>adb devices
List of devices attached
FAAZCY041912 device
C:\Users\StreetLuck\Desktop\Asus ZenFie\asus_zenfone_selfie_recovery_toolkit>adb reboot bootloader
C:\Users\StreetLuck\Desktop\Asus ZenFie\asus_zenfone_selfie_recovery_toolkit>fastboot flash recovery recovery.img
target reported max download size of 268435456 bytes
sending 'recovery' (29436 KB)...
OKAY [ 0.924s]
writing 'recovery'...
OKAY [ 1.136s]
finished. total time: 2.061s
This is where I got problem:
C:\Users\StreetLuck\Desktop\Asus ZenFie\asus_zenfone_selfie_recovery_toolkit>fastboot oem reboot -recovery
...
FAILED (remote: unknown command)
finished. total time: 0.001s
how to resolve?
Please help me. Thanks.

ash_zairy said:
C:\Users\StreetLuck\Desktop\Asus ZenFie\asus_zenfone_selfie_recovery_toolkit>adb devices
List of devices attached
FAAZCY041912 device
C:\Users\StreetLuck\Desktop\Asus ZenFie\asus_zenfone_selfie_recovery_toolkit>adb reboot bootloader
C:\Users\StreetLuck\Desktop\Asus ZenFie\asus_zenfone_selfie_recovery_toolkit>fastboot flash recovery recovery.img
target reported max download size of 268435456 bytes
sending 'recovery' (29436 KB)...
OKAY [ 0.924s]
writing 'recovery'...
OKAY [ 1.136s]
finished. total time: 2.061s
This is where I got problem:
C:\Users\StreetLuck\Desktop\Asus ZenFie\asus_zenfone_selfie_recovery_toolkit>fastboot oem reboot -recovery
...
FAILED (remote: unknown command)
finished. total time: 0.001s
how to resolve?
Please help me. Thanks.
Click to expand...
Click to collapse
Same problem for me, did you solved it?

Elmengardo said:
Same problem for me, did you solved it?
Click to expand...
Click to collapse
at that point try this command: fastboot boot recovery.img
it worked for me

does it work in Asus Zenfone Selfie ZD551KL Z00UD android 6.0.1?

fastboot oem reboot -recovery faild how i solve it ?
C:\Users\acer\Desktop\New folder\asus_zenfone_selfie_recovery_toolkit>fastboot oem reboot -recovery
...
FAILED (remote: unknown command)
finished. total time: 0.002s
how to resolve my phone is asus zenfone selfie
android version : 6.0.1
how i solve it ?

Hiroyt01 said:
Hi everyone !
So I tryed to install CM on my Asus zenfone (Z00UD) and everything worked with no problems until the fastboo oem reboot-recovery.
So I tryed to reboot while pressing the VOLUME DOWN key and i get to the original recovery mode.
My phone is still booting to the usual android when I boot without going in recovery.
So I guess TWRP flash didn't worked as excepted, but i remember it showing completed.
Is there a way to verify that TWRP isn't installed so i can re install it ?
Or is it another problem ?
Click to expand...
Click to collapse
I have the same phone Hiroyte but I cant unlock bootloader because the system does not boot to OS >> any help to do this without boot into the system ?
thanks

can't unlock bootloader

Hallo,
this is my problem: i dont have working system. When i turn on my device i only see one Plus logo. I have access to fastbot and recovery mode.
The things i have already tried:
https://forums.oneplus.net/threads/guide-mega-unbrick-guide-for-a-hard-bricked-oneplus-3.452634/
I have aleready executed method 1 and 2 ( without How to Prevent Data Wipe in Method 2​) and everything is working properly until I perform Step 14, when I try to flash via adb sideload latest OXYGEN OS it always stops after 47%. (Installation failed).
I have also tried fastboot method:
PS C:\adb> fastboot devices
755549d1 fastboot
PS C:\adb> fastboot oem unlock
...
FAILED (remote: oem unlock is not allowed)
finished. total time: 0.000s
PS C:\adb> fastboot flash recovery recovery.img
target reported max download size of 536870912 bytes
sending 'recovery' (22605 KB)...
OKAY [ 0.625s]
writing 'recovery'...
FAILED (remote: Partition flashing is not allowed)
finished. total time: 0.641s
now i really dont know what to do . just hope that someone can really help me.
https://forum.xda-developers.com/oneplus-3/help/unlock-bootlader-t3411550
after some search i found this post, and the user seems to had the same problem that i have.

amans90 said:
Hallo,
this is my problem: i dont have working system. When i turn on my device i only see one Plus logo. I have access to fastbot and recovery mode.
The things i have already tried:
https://forums.oneplus.net/threads/guide-mega-unbrick-guide-for-a-hard-bricked-oneplus-3.452634/
I have aleready executed method 1 and 2 ( without How to Prevent Data Wipe in Method 2​) and everything is working properly until I perform Step 14, when I try to flash via adb sideload latest OXYGEN OS it always stops after 47%. (Installation failed).
I have also tried fastboot method:
PS C:\adb> fastboot devices
755549d1 fastboot
PS C:\adb> fastboot oem unlock
...
FAILED (remote: oem unlock is not allowed)
finished. total time: 0.000s
PS C:\adb> fastboot flash recovery recovery.img
target reported max download size of 536870912 bytes
sending 'recovery' (22605 KB)...
OKAY [ 0.625s]
writing 'recovery'...
FAILED (remote: Partition flashing is not allowed)
finished. total time: 0.641s
now i really dont know what to do . just hope that someone can really help me.
https://forum.xda-developers.com/oneplus-3/help/unlock-bootlader-t3411550
after some search i found this post, and the user seems to had the same problem that i have.
Click to expand...
Click to collapse
Just a shot in the dark but have you enabled oem unlocking in developer options?

Xceeder said:
Just a shot in the dark but have you enabled oem unlocking in developer options?
Click to expand...
Click to collapse
no unfortunately not , thats the problem

amans90 said:
no unfortunately not , thats the problem
Click to expand...
Click to collapse
Okay well I hope you can get your phone sorted now , if I've helped then please leave a thumbs up on my post I really appreciate it...

amans90 said:
Hallo,
this is my problem: i dont have working system. When i turn on my device i only see one Plus logo. I have access to fastbot and recovery mode.
The things i have already tried:
https://forums.oneplus.net/threads/guide-mega-unbrick-guide-for-a-hard-bricked-oneplus-3.452634/
I have aleready executed method 1 and 2 ( without How to Prevent Data Wipe in Method 2​) and everything is working properly until I perform Step 14, when I try to flash via adb sideload latest OXYGEN OS it always stops after 47%. (Installation failed).
I have also tried fastboot method:
PS C:\adb> fastboot devices
755549d1 fastboot
PS C:\adb> fastboot oem unlock
...
FAILED (remote: oem unlock is not allowed)
finished. total time: 0.000s
PS C:\adb> fastboot flash recovery recovery.img
target reported max download size of 536870912 bytes
sending 'recovery' (22605 KB)...
OKAY [ 0.625s]
writing 'recovery'...
FAILED (remote: Partition flashing is not allowed)
finished. total time: 0.641s
now i really dont know what to do . just hope that someone can really help me.
https://forum.xda-developers.com/oneplus-3/help/unlock-bootlader-t3411550
after some search i found this post, and the user seems to had the same problem that i have.
Click to expand...
Click to collapse
Hi i have the same problem like you did you solve it ?

Dsn Fouad said:
Hi i have the same problem like you did you solve it ?
Click to expand...
Click to collapse
see below.
Xceeder said:
Just a shot in the dark but have you enabled oem unlocking in developer options?
Click to expand...
Click to collapse

Have you tried to flash any full Rom from stock recovery? Doesn't need unlocked bootloader as long as its the official OnePlus software.
Sent from my ONEPLUS A3003 using Tapatalk

n1kos said:
Have you tried to flash any full Rom from stock recovery? Doesn't need unlocked bootloader as long as its the official OnePlus software.
Click to expand...
Click to collapse
I dont know i flashed the lastest os and the old with sideload but it stuck on 45%

n1kos said:
Have you tried to flash any full Rom from stock recovery? Doesn't need unlocked bootloader as long as its the official OnePlus software.
Click to expand...
Click to collapse
Here

Dsn Fouad said:
Here
Click to expand...
Click to collapse
You are trying to flash TWRP with a locked bootloader and it obviously fails. Download the full official ROM from OnePlus site and the corresponding recovery also. First flash the recovery and reboot to bootloader and then flash the OS and reboot. If you are successful, you can enable Developer Options and from there OEM unlock and USB debugging. Thereafter you can try TWRP, Magisk and other ROMs.

Hmm, I thought he said he can enter bootloader and recovery. If so, reboot the phone in stock recovery and flash full Rom from local update.
Sent from my ONEPLUS A3003 using Tapatalk

tnsmani said:
You are trying to flash TWRP with a locked bootloader and it obviously fails. Download the full official ROM from OnePlus site and the corresponding recovery also. First flash the recovery and reboot to bootloader and then flash the OS and reboot. If you are successful, you can enable Developer Options and from there OEM unlock and USB debugging. Thereafter you can try TWRP, Magisk and other ROMs.
Click to expand...
Click to collapse
You mean flash twrp in fastboot and stock rom in recovery adb sideload i tried all of that i downloaded the lastest stock and lastest twrp it fails it's okay thanks for everything im just going to sell it, it's completely bricked because of that oem and usb debugging locked small things can be dangerous.

Dsn Fouad said:
You mean flash twrp in fastboot and stock rom in recovery adb sideload i tried all of that i downloaded the lastest stock and lastest twrp it fails it's okay thanks for everything im just going to sell it, it's completely bricked because of that oem and usb debugging locked small things can be dangerous.
Click to expand...
Click to collapse
NO.
So that is where you are committing a mistake. You have not been reading the posts carefully.
All of us are asking you to download the STOCK recovery compatible with the version of the stock ROM chosen by you and to FLASH THE STOCK RECOVERY FIRST, NOT TWRP.
Because TWRP can't be flashed with a locked bootloader whereas the stock recovery can be flashed from bootloader. Then go for the ROM, sideload it using adb and boot.

tnsmani said:
NO.
So that is where you are committing a mistake. You have not been reading the posts carefully.
All of us are asking you to download the STOCK recovery compatible with the version of the stock ROM chosen by you and to FLASH THE STOCK RECOVERY FIRST, NOT TWRP.
Because TWRP can't be flashed with a locked bootloader whereas the stock recovery can be flashed from bootloader. Then go for the ROM, sideload it using adb from bootloader and boot.
Click to expand...
Click to collapse
Oh i see now where can i find the lastest recovery and by how i need to flash it, in adb sideload (recovery.img) or fastboot flash recovery (oneplus recovery.img)?

tnsmani said:
NO.
So that is where you are committing a mistake. You have not been reading the posts carefully.
All of us are asking you to download the STOCK recovery compatible with the version of the stock ROM chosen by you and to FLASH THE STOCK RECOVERY FIRST, NOT TWRP.
Because TWRP can't be flashed with a locked bootloader whereas the stock recovery can be flashed from bootloader. Then go for the ROM, sideload it using adb from bootloader and boot.
Click to expand...
Click to collapse
I tried again but failed with official oneplus 3 recovery

Dsn Fouad said:
I tried again but failed with official oneplus 3 recovery
Click to expand...
Click to collapse
Here

Dsn Fouad said:
I tried again but failed with official oneplus 3 recovery
Click to expand...
Click to collapse
Here

tnsmani said:
NO.
So that is where you are committing a mistake. You have not been reading the posts carefully.
All of us are asking you to download the STOCK recovery compatible with the version of the stock ROM chosen by you and to FLASH THE STOCK RECOVERY FIRST, NOT TWRP.
Because TWRP can't be flashed with a locked bootloader whereas the stock recovery can be flashed from bootloader. Then go for the ROM, sideload it using adb from bootloader and boot.
Click to expand...
Click to collapse
...

amans90 said:
Hallo,
this is my problem: i dont have working system. When i turn on my device i only see one Plus logo. I have access to fastbot and recovery mode.
The things i have already tried:
https://forums.oneplus.net/threads/guide-mega-unbrick-guide-for-a-hard-bricked-oneplus-3.452634/
I have aleready executed method 1 and 2 ( without How to Prevent Data Wipe in Method 2​) and everything is working properly until I perform Step 14, when I try to flash via adb sideload latest OXYGEN OS it always stops after 47%. (Installation failed).
I have also tried fastboot method:
PS C:\adb> fastboot devices
755549d1 fastboot
PS C:\adb> fastboot oem unlock
...
FAILED (remote: oem unlock is not allowed)
finished. total time: 0.000s
PS C:\adb> fastboot flash recovery recovery.img
target reported max download size of 536870912 bytes
sending 'recovery' (22605 KB)...
OKAY [ 0.625s]
writing 'recovery'...
FAILED (remote: Partition flashing is not allowed)
finished. total time: 0.641s
now i really dont know what to do . just hope that someone can really help me.
https://forum.xda-developers.com/oneplus-3/help/unlock-bootlader-t3411550
after some search i found this post, and the user seems to had the same problem that i have.
Click to expand...
Click to collapse
Make sure you are using the latest version of adb and fastboot, had some trouble myself with this:
https://developer.android.com/studio/releases/platform-tools

jeffrey268 said:
Make sure you are using the latest version of adb and fastboot, had some trouble myself with this:
https://developer.android.com/studio/releases/platform-tools
Click to expand...
Click to collapse
Nah it will still fail, all because of that oem and device state locked, lol i buy a new phone used it 1 month i was having a update available i updated it and then boom 370€ gone just like that, it took me 4 month to got it, i just want to kill people now im very depressed right now god bless people like you thanks for your help.

device unable to boot Error - mdtp image is corrupted

Hi there,
I have a problem i was try to root my phone.
Now i dont have access to ADB but only fastboot works.
If i start my phone it goes on fastboot mode, and if i try "fast boot twrp-3.3.0-0-daisy.img" i get the error "device unable to boot Error - mdtp image is corrupted"
Can some one help me out, if tried to download the image again but without success..

You don't need twrp for root?!
I guess you need to get a fast boot ROM and flash it. Don't relock the bootloader. Don't flash data. Just all the other partitions.
Maybe even just flash that partition. My phone has a and b. Should just need to flash the current one.

a1291762 said:
You don't need twrp for root?!
I guess you need to get a fast boot ROM and flash it. Don't relock the bootloader. Don't flash data. Just all the other partitions.
Maybe even just flash that partition. My phone has a and b. Should just need to flash the current one.
Click to expand...
Click to collapse
Sorry im a little bit noob, but how it works:
flastboot flash a?

fastboot flash mdtp_a mdtp.img
That file is in the images folder after you extract the fastboot ROM.

Hi,
while having 15 years of Linux experience, I've just dropped into the same issue on my first hour of Android exploration. Currently no OS is installed and the phone boots into fastboot. Booting into twrp-3.3.1-dees_troy-daisy.img failes also with "Error - mdtp image is corrupted".
I've flashed mdtp.img from V10.0.12.0.PDLMIXM as described, but still I get the same error when booting into twrp-3.3.1-dees_troy-daisy.img . Is there somewere a documentation, how to proceed in such a case?
a1291762 said:
fastboot flash mdtp_a mdtp.img
That file is in the images folder after you extract the fastboot ROM.
Click to expand...
Click to collapse

mj2o said:
Hi,
while having 15 years of Linux experience, I've just dropped into the same issue on my first hour of Android exploration. Currently no OS is installed and the phone boots into fastboot. Booting into twrp-3.3.1-dees_troy-daisy.img failes also with "Error - mdtp image is corrupted".
I've flashed mdtp.img from V10.0.12.0.PDLMIXM as described, but still I get the same error when booting into twrp-3.3.1-dees_troy-daisy.img . Is there somewere a documentation, how to proceed in such a case?
Click to expand...
Click to collapse
No OS installed is maybe cause the last rom that you flashed was not flashed in the right slot or correctly flashed.
Also the fastboot command mentioned here is to flash mdtp in "a" slot but you have to see first which is your active slot and then install it on it.

SubwayChamp said:
Also the fastboot command mentioned here is to flash mdtp in "a" slot but you have to see first which is your active slot and then install it on it.
Click to expand...
Click to collapse
I've searched more for the reason and once got the response: FAILED (remote: partition table doesn't exist)
So it sounds I have to recreate the partition table. I haven't found any fastboot command to request the current partition status.

mj2o said:
I've searched more for the reason and once got the response: FAILED (remote: partition table doesn't exist)
So it sounds I have to recreate the partition table. I haven't found any fastboot command to request the current partition status.
Click to expand...
Click to collapse
I don´t think that exist a command to diagnose status of partitions but I´m sure that if you try to flash on an inactive slot then won´t work, ever an inactive slot will give you a fail.
Check your active slot by typing
Code:
fastboot getvar current-slot
and then flash it on the active slot using "mdtp_a" or "mdtp_b" but ONLY if the active slot is actually with all the system on it it´s mean that if you deleted all your system and any of both are actually with partitions running (no matter that with errors) then won´t work this way as you expect.

I have the same problem, what you have did to fix? please

Hi,
I've downloaded and flashed the factory image from miui.com. This way I have reset all my efforts and started all over. You find there the full rom and a flashing guide for the Xiaomi Mi A2 Lite.

mj2o said:
Hi,
I've downloaded and flashed the factory image from miui.com. This way I have reset all my efforts and started all over. You find there the full rom and a flashing guide for the Xiaomi Mi A2 Lite.
Click to expand...
Click to collapse
hi
same issue here @mj2o: Can you please provide a link to the site in English; it all in Chinese and I cannot read it
Thanks

mj2o said:
Hi,
I've downloaded and flashed the factory image from miui.com. This way I have reset all my efforts and started all over. You find there the full rom and a flashing guide for the Xiaomi Mi A2 Lite.
Click to expand...
Click to collapse
SubwayChamp said:
I don´t think that exist a command to diagnose status of partitions but I´m sure that if you try to flash on an inactive slot then won´t work, ever an inactive slot will give you a fail.
Check your active slot by typing
Code:
fastboot getvar current-slot
and then flash it on the active slot using "mdtp_a" or "mdtp_b" but ONLY if the active slot is actually with all the system on it it´s mean that if you deleted all your system and any of both are actually with partitions running (no matter that with errors) then won´t work this way as you expect.
Click to expand...
Click to collapse
@mj2o;80151263:
Code:
fastboot getvar current-slot
returns -->
Code:
current-slot: INVALID
finished. total time: 0.008s
and
Code:
fastboot flash aboot aboot.img
returns -->
Code:
target reported max download size of 534773760 bytes
sending 'aboot' (1024 KB)...
OKAY [ 0.055s]
writing 'aboot'...
FAILED (remote: partition table doesn't exist)
finished. total time: 0.075s
please advise.

BenG7 said:
@mj2o;80151263:
Code:
fastboot getvar current-slot
returns -->
Code:
current-slot: INVALID
finished. total time: 0.008s
and
Code:
fastboot flash aboot aboot.img
returns -->
Code:
target reported max download size of 534773760 bytes
sending 'aboot' (1024 KB)...
OKAY [ 0.055s]
writing 'aboot'...
FAILED (remote: partition table doesn't exist)
finished. total time: 0.075s
please advise.
Click to expand...
Click to collapse
Why do you want to flash the bootloader, what is the issue?

Hi @SubwayChamp
I wanted to flash LO16
Did a wpie data -yes format
Then a wipe system as instructed and now im stuck in fast boot.
Device unable to boot. Error - mdtp is corrupted

BenG7 said:
Hi @SubwayChamp
I wanted to flash LO16
Did a wpie data -yes format
Then a wipe system as instructed and now im stuck in fast boot.
Click to expand...
Click to collapse
If your issue is related with mdtp partition then you should to install again this image through fastboot in both slots in order to can boot device again to recovery; use
Code:
fastboot flash mdtp_a mdtp.img
and
Code:
fastboot flash mdtp_b mdtp.img
(you will get the images from any of the full fastboot roms)
From there try again the steps recommended by OP in that thread to get that your device boots on LOS but this is other question concerning only to that thread

Thanks SubwayChamp,
Will try as advised and keep you updated.
I m going to look for the fastboot rom for my daisy.

SubwayChamp said:
If your issue is related with mdtp partition then you should to install again this image through fastboot in both slots in order to can boot device again to recovery; use
Code:
fastboot flash mdtp_a mdtp.img
and
Code:
fastboot flash mdtp_b mdtp.img
(you will get the images from any of the full fastboot roms)
From there try again the steps recommended by OP in that thread to get that your device boots on LOS but this is other question concerning only to that thread
Click to expand...
Click to collapse
@SubwayChamp
dit it and when I
Code:
fastboot reboot
it boots straight back to fastboot.
What next? Mi a2 Lite stuck at Fastboot - No recovery, no nothing! Help ?
Thanks for your help!
[EDIT]
realised I can
Code:
fastboot boot twrp-daisy-3.3.1-0-offain.img
and I can flash the twrp-installer-daisy-3.3.1-0-offain.zip
but if I want to reboot; it says
Code:
No OS installed! Are you sure you wish to reboot?
so I went on with flashing lineageos 16
but at the end of the flash, I get
Code:
Failed to mount '/system' (permission denied)
please advise

BenG7 said:
If your issue is related with mdtp partition then you should to install again this image through fastboot in both slots in order to can boot device again to recovery; use and
@SubwayChamp
dit it and when I
it boots straight back to fastboot.
What next? Mi a2 Lite stuck at Fastboot - No recovery, no nothing! Help ?
Thanks for your help!
Click to expand...
Click to collapse
Your recovery is missed now cause when you flashed LOS was overwritten and device can't boot to system cause some step failed in the process.
If you flashed successfully mdtp images now follow the steps to boot to recovery and then follow those indicated to install LOS.

SubwayChamp said:
Your recovery is missed now cause when you flashed LOS was overwritten and device can't boot to system cause some step failed in the process.
If you flashed successfully mdtp images now follow the steps to boot to recovery and then follow those indicated to install LOS.
Click to expand...
Click to collapse
Thanks; this is what I did:
from TWRP I rebooted to recovery
it took me straight to fastboot again
so I
Code:
fastboot boot twrp-daisy-3.3.1-0-offain.img
again and mounted system partition then I flashed LOS
and the process went fine this time but when I rebooted to the system
it's back to fastboot again!

BenG7 said:
Thanks; this is what I did:
from TWRP I rebooted to recovery
it took me straight to fastboot again
so I
again and mounted system partition then I flashed LOS
and the process went fine this time but when I rebooted to the system
it's back to fastboot again!
Click to expand...
Click to collapse
This is exactly what I tried to tell you: your issue concerning to this thread was solved.
Now you have an issue regarding how to flash and boot to system attempting to install LOS. TWRP is perfectly capable to mount/remount or unmount partitions if needed, no need an action from the user, this is not the reason why you are not booting but the method and steps is discussed more properly in the same thread.
From here you can take one of hese three routes:
- To insist with trying to flash LOS.
- Flash other rom or a previous known working rom.
- Return completely to stock by flashing a full global rom.
Just I could recommend that for the future when you flash a stock rom take a backup of the most important partitions (without userdata) this could avoid that you need to use EDL anymore.

Question OP9P stuck in fastboot mode, no OS or recovery Help!

I am new to flashing custom roms, and I got lineage running but I wanted to try Evo X, when I tried flashing through lineage Recovery it booted back into lineage, ok, so I erased all datat through lineage recovery and installed TWRP. I got that on but within a few clicks of messing around I found myself with no recovery or OS and im only stuck in fastboot, I have no idea how to get out of it. mods take this post down if posted in the wrong community. I just though this would be the best place to post it. I am new to XDA, I have these ADB logs from the command I was trying to run
C:\Users\user\Desktop\platform-tools_r31.0.3-windows\platform-tools>fastboot boot C:\Users\user\Desktop\platform-tools_r31.0.3-windows\platform-tools\TWRP-3.5.1-lemonadep-Nebrassy-2.img
Sending 'boot.img' (196608 KB) OKAY [ 4.500s]
Booting FAILED (remote: 'Failed to load/authenticate boot image: Load Error')
fastboot: error: Command failed
I have no idea why it keep failing, I would greatly appreciate any help to get my phone working again.

Try the following command :
fastboot flash boot lineage-recovery.img
Once that is done, boot to recovery from fastboot and try flashing the rom you were trying to.

oddlyspaced said:
Try the following command :
fastboot flash boot lineage-recovery.img
Once that is done, boot to recovery from fastboot and try flashing the rom you were trying to.
Click to expand...
Click to collapse
I tried this and when I click to restart into recovery it just boots back into fastboot, this is what ADB says after I use the flash boot command
C:\Users\user\Desktop\platform-tools_r31.0.3-windows\platform-tools>fastboot flash boot lineage-18.1-20210803-recovery-lemonadep.img
Sending 'boot_a' (196608 KB) OKAY [ 4.541s]
Writing 'boot_a' OKAY [ 0.556s]
Finished. Total time: 5.848s
I don't see why it is not going into recovery

eltryyyy said:
I tried this and when I click to restart into recovery it just boots back into fastboot, this is what ADB says after I use the flash boot command
C:\Users\user\Desktop\platform-tools_r31.0.3-windows\platform-tools>fastboot flash boot lineage-18.1-20210803-recovery-lemonadep.img
Sending 'boot_a' (196608 KB) OKAY [ 4.541s]
Writing 'boot_a' OKAY [ 0.556s]
Finished. Total time: 5.848s
I don't see why it is not going into recovery
Click to expand...
Click to collapse
I guess you should try msm tool then

Go for msm tool. You can find a tutorial for 8pro on YouTube. Follow the same steps( obviously with the correct op9 pro firmware.

RazOne said:
Go for msm tool. You can find a tutorial for 8pro on YouTube. Follow the same steps( obviously with the correct op9 pro firmware.
Click to expand...
Click to collapse
I have gotten msm tool and my firmware, but nothing is showing up in msm when my device is connected
ive linked a screenshot of what my msm tool looks like, im just so desperate to get my phone back

Power off phone, position mouse cursor o er start button on msm tool, hold down vol up and down simultaneously, plug phone into computer wait a quick second and press start. That should work.

eltryyyy said:
I tried this and when I click to restart into recovery it just boots back into fastboot, this is what ADB says after I use the flash boot command
C:\Users\user\Desktop\platform-tools_r31.0.3-windows\platform-tools>fastboot flash boot lineage-18.1-20210803-recovery-lemonadep.img
Sending 'boot_a' (196608 KB) OKAY [ 4.541s]
Writing 'boot_a' OKAY [ 0.556s]
Finished. Total time: 5.848s
Click to expand...
Click to collapse
Instead of going for msm tool, when your stuck in fastboot, after successfully flashing an .img (Twrp, losrecovery ) use:
"fastboot --set-active=b" (when you're active in slot a)
Then reboot to recovery.
Basically it flashes okay but to the other slot. Happened to me too. I am now booted into the system on slot b. Hope it helps

IamTheBRAVE said:
Instead of going for msm tool, when your stuck in fastboot, after successfully flashing an .img (Twrp, losrecovery ) use:
"fastboot --set-active=b" (when you're active in slot a)
Then reboot to recovery.
Basically it flashes okay but to the other slot. Happened to me too. I am now booted into the system on slot b. Hope it helps
Click to expand...
Click to collapse
I LITERALLY CANNOT THANK YOU ENOUGH, YOU ARE LIKE THE DAD I NEVER HAD.

Lol, i'm not that old found the answer myself in a forum after 2 days of being stuck in fastboot.

IamTheBRAVE said:
Instead of going for msm tool, when your stuck in fastboot, after successfully flashing an .img (Twrp, losrecovery ) use:
"fastboot --set-active=b" (when you're active in slot a)
Then reboot to recovery.
Basically it flashes okay but to the other slot. Happened to me too. I am now booted into the system on slot b. Hope it helps
Click to expand...
Click to collapse
hello guys i am facing that same issue but my own show slot_b and then i try to use your step but still not work help me plizzz

Googled the error you have. Check this post (and following ones)
[SOLVED] - Bootloop with completely new OPO9pro after oem unlock
Hello, just received the phone (EU), updated latest online udpate. (no Google account etc added, just fast setup) Enabled developer options, OEM unlocking and USB debugging. After update, 1*reboot. then another reboot to bootloader, and executed...
forum.xda-developers.com
I think you should start over and use "fastboot flashing unlock" instead of fastboot oem unlock.
Follow the link in that thread. Droidwin has the best tutorials for oneplus you'll find. Never had this error myself, so can't say for sure what to do.