Develop Bugs

[Q] Failed to unlock bootloader

Hi guys,
I've tried everything, but after successful root I can't unlock bootloader and flash recovery mode. Fastboot is also not running. The stock ROM is awfully slow and I wanted to flash a new one... That is what I see when I enter the service menu (see the attachment) :/
Please, help :c
Xperia S LT26i (2012, I think)

Its just not allowed to unlock your bootloader.
Nothing more to say.
Send thanks to Orange, where you device is from.

You may try other ROMs based on stock one, but optimized. As said above you can't do anything about it. I would suggest you to update the phone to a new one with unlocked bootloader, SXS too old nowdays with it's S3 CPU.

The bootloader is already unlocked??

I recently bought a Moto Z Play from Chinese site (Banggood). The device came with Android 6.01 (Chinese Software Channel). Inadvertently I did not go there in settings and enabled Scheduler and then enabled OEM Unlock. I downloaded the Stock Retail Retail BR with Android 7.0 and updated by RSD. From there, the boot screen lost the original logo (as if I had actually unlocked the bootloader) and even indefinitely in Settings / Scheduler, the OEM Unlock option was no longer available: it is disabled in light gray and appears in small letters (the bootloader is already unlocked). Is there any way I can fix this? Someone can help me, please? Thanks in advance! :fingers-crossed:

chinese phones often come with the bootloader unlocked in my experience.

But in this case I would install TWRP without problems, then root the phone, correct? But I can´t... TWRP freezes then I´ve to return to Stock ROM. Sorry, but I´m newbie

How do you mean it freezes does twrp not install at all or freezes after being installed.

Mi5s bootloop when unlock bootloader with android ^7.0

After I unlocked the bootloader, I could not install the firmware version with android version 7.0 or higher whether by Miflash or TWRP. They all lead to hanging logos or bootloop.
Has anyone met a case like me?
p / s: I tested with stock rom and custom rom.

Question Lock the boot loader after flashing the signed boot image

I have installed custom ROM (lineage os) for one-plus 9 pro android device. I have unlocked the boot-loader and changed the boot-animation image.
Now I want to lock the boot-loader again to get rid of annoying message that comes at the start. In order to lock the boot-loader , I have to flash the signed boot image .
I am struggling to find the steps required to sign the boot image.
I have tried some post but it did not work.
Appreciate if someone can help me?

Re-locking the bootloader forces to run device's Stock ROM only.

jwoegerbauer said:
Re-locking the bootloader forces to run device's Stock ROM only.
Click to expand...
Click to collapse
I just want to remove boot loder warning message screen. is it possible ?

maneeshsin said:
I just want to remove boot loder warning message screen. is it possible ?
Click to expand...
Click to collapse
It is possible by editing your logo.IMG or logo.bin file (you can backup your logo partition using any tool like partition backup and restore on playstore)

It is not possible to get rid of that message of an unlocked bootloader.
That message is part of the secure boot process and happens long before boot animation. That message is part of the bootloader itself.
When you flash a ROM you do not flash the bootloader.
The only way to get rid of that message is with a signed bootloader that doesn't display it. That does not exist. If you have an unlocked bootloader, you live with the message.

tech_head said:
It is not possible to get rid of that message of an unlocked bootloader.
That message is part of the secure boot process and happens long before boot animation. That message is part of the bootloader itself.
When you flash a ROM you do not flash the bootloader.
The only way to get rid of that message is with a signed bootloader that doesn't display it. That does not exist. If you have an unlocked bootloader, you live with the message.
Click to expand...
Click to collapse
I have an unlocked bootloader on my phone and I have edited my phones image to remove the message

areallydumbperson said:
I have an unlocked bootloader on my phone and I have edited my phones image to remove the message
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Click to collapse
And FYI logo partition isnt the boot animation

areallydumbperson said:
I have an unlocked bootloader on my phone and I have edited my phones image to remove the message
Click to expand...
Click to collapse
I seriously doubt this. The warning is a part of aboot itself and has nothing to do with the splash.img or logo.img you're referring to.
Ways around this in the past were done by hex editing aboot to set the delay of the warning to 0-1 seconds, that way it essentially just skips it. But that hasn't been done since OP3 series afaik.

AnierinB said:
I seriously doubt this. The warning is a part of aboot itself and has nothing to do with the splash.img or logo.img you're referring to.
Ways around this in the past were done by hex editing aboot to set the delay of the warning to 0-1 seconds, that way it essentially just skips it. But that hasn't been done since OP3 series afaik.
Click to expand...
Click to collapse
Oh my bad I was talking about Motorola phone

maneeshsin said:
I have installed custom ROM (lineage os) for one-plus 9 pro android device. I have unlocked the boot-loader and changed the boot-animation image.
Now I want to lock the boot-loader again to get rid of annoying message that comes at the start. In order to lock the boot-loader , I have to flash the signed boot image .
I am struggling to find the steps required to sign the boot image.
I have tried some post but it did not work.
Appreciate if someone can help me?
Click to expand...
Click to collapse
This guide should help you. Little complicated. But i think somewhere in the thread there is mention of it being easier now.
[GUIDE] Re-locking the bootloader on the OnePlus 8t with a self-signed build of LOS 18.1
What is this tutorial? This tutorial will: Creating an unofficial build of LineageOS 18.1 suitable for using to re-lock the bootloader on a OnePlus 8t Take you through the process of re-locking your bootloader after installing the above This...
forum.xda-developers.com

Operating system does not start OP 7T.

Hello, I have the following problem when you installed an OS and the cell phone is restarted for the first time and the circles appear (red and white) only last 4 seconds and then the cell goes off and it does not start the OS.
This same error happened to me by installing Pixel Experience 12, DerpFest and installing the Rom Stock (using MSM). I hope and can help me.
PD I can access the bootloader but I can not unlock it because of Android 11 to 10.
Model: OnePlus 7T (HD1900).

[CLOSED] T-Mobile 7T Conversion to International WITHOUT unlocked bootloader/SIM unlock!
Here is a patched MSM download tool for TMobile OP7T. It will bypass the need to sim unlock before unlocking the bootloader, and will also bypass the need of an unlock token file from OnePlus (hence skip the wait period of 1 week to get the...
forum.xda-developers.com

HueyT said:
[CLOSED] T-Mobile 7T Conversion to International WITHOUT unlocked bootloader/SIM unlock!
Here is a patched MSM download tool for TMobile OP7T. It will bypass the need to sim unlock before unlocking the bootloader, and will also bypass the need of an unlock token file from OnePlus (hence skip the wait period of 1 week to get the...
forum.xda-developers.com
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Click to collapse
Hi, I tried that method but when you are sending the files an error appears (Device Not Match Image).
Regards.

What did you exactly did that system won't start?
Did you flashed wrong boot.img or something else?
Did you tried easiest method which is Hold Power+Vol Down for few second untill you feel 3x vibration and then release. Check this out.

Riski3Run said:
What did you exactly did that system won't start?
Did you flashed wrong boot.img or something else?
Did you tried easiest method which is Hold Power+Vol Down for few second untill you feel 3x vibration and then release. Check this out.
Click to expand...
Click to collapse
Hello,
1.- I had pixel experience 12 installed and I used it without problems for 3 days until I installed YouTube vanced and it asked me to restart, when I was loading the "Google" logo the cell phone turned off (the same problem I have now). I reinstalled pixel experience but still got the same error.
Then I installed DerpFest and finally stock ROM via MSM and the same problem persists.
2.- I never installed any boot.img
3.- Doing power+vol down only loads the recovery stock Ver.2.0