How to unlock Unisoc (SPD) bootloader using Identifier Token

[Tutorial] How to unlock Unisoc (SPD) bootloader using Identifier Token

Wikinger98
Newbie

2

22-09-2023, 12:00 PM

#301

My alldocube iPlay 50 Mini gives back the following answer after Step 9:

error: could not load 'unlock_bootloader': No such file or directory

What can I do?

hovatek
Administrator

50,901

28-09-2023, 01:25 PM

#302

(22-09-2023, 12:00 PM)Wikinger98 My alldocube iPlay 50 Mini gives back the following answer after Step 9:

error: could not load 'unlock_bootloader': No such file or directory

What can I do?

Create a thread by clicking Ask Question at the top

Learn MediaTek, Unisoc / Spreadtrum (SPD) and Qualcomm Software Repairs @ https://www.hovatek.com/training
Note!
We have a reply schedule for Forum Support. Please try Private Support if you can't wait.

pmagix
Newbie

2

05-10-2023, 04:43 PM

#303

Hello, I'm trying this on the realme c11 2021 with the unisoc sc9863a and im getting this error

downloading 'unlock_message'...
OKAY [ 0.000s]
unlocking bootloader...
FAILED (remote: Unlock bootloader fail.)
finished. total time: 0.107s

any help?

dementr0n
Newbie

3

28-10-2023, 12:31 PM

#304

(12-02-2020, 06:25 PM)hovatek This tutorial will explain how to unlock a Unisoc / Spreadtrum (SPD) Android device's bootloader using its Identifier Token. This guide is ideal for those who had tried the generic fastboot bootloader unlock guide but had no success due to fastboot commands not getting recognized e.g

Code:

FAILED (remote: 'unknown cmd.') fastboot: error: Command failed

Requirements
Basic Linux and command line knowledge

A Linux based PC or Ubuntu Live USB on a Windows PC

Enable USB Debugging and OEM Unlocking on the device

Get the device into Fastboot

Download modified fastboot @ https://mega.nz/#!WCAgFCTY!0nwMwAlnKXkYR...IwDGbSmlPU

How to unlock Unisoc (SPD) bootloader using Identifier Token

Follow the steps below to unlock the bootloader of Unisoc (SPD) devices

See the Video below or @ https://youtu.be/HhBTezxlAYw

Open the modified_fastboot folder, right-click then select Open in Terminal

Test detection using

Code:

./fastboot devices

Get Identifier Token using

Code:

./fastboot oem get_identifier_token

You should get an output like
Identifier token:
XXXXXXXXXXXXXXXXXXXXXXXX
OKAY [ 0.019s]
finished. total time: 0.019s

Copy out the Identifier token

Run this command ; replace XXXXXXXXXXXXXXXXXXXXXXXX with your Identifier token

Code:

./signidentifier_unlockbootloader.sh XXXXXXXXXXXXXXXXXXXXXXXX rsa4096_vbmeta.pem signature.bin

You should have an output like
Identifier sign script, ver 0.10
1+0 records in
1+0 records out
50 bytes copied, 0.000257562 s, 194 kB/s
Identifier sign successfully

You should also see a signature.bin file in the modified_fastboot folder

Finally, run this command

Code:

./fastboot flashing unlock_bootloader signature.bin

You should get a prompt on the device asking you to push a volume button to confirm unlock, do so

You should now have an output like
downloading 'unlock_message'...
OKAY [ 0.001s]
unlocking bootloader...
Info:Unlock bootloader success! OKAY [ 85.787s]
finished. total time: 85.788s

Reboot the device using

Code:

./fastboot reboot

Your bootloader should now be unlocked

Important Notice
You can enter bootloader by first booting the device into recovery mode then selecting Reboot to Bootloader

This guide isn't guaranteed to work on all Unisoc devices especially if they require a different private key

Unlocking bootloader wipes your data so ensure to backup important stuff first

To hide the Warning: Lock flag is : unlock, skip verify!!! message, try flash stock vbmeta using

Code:

fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img

For those who wish to relock their bootloader, then simply run the fastboot command below

Code:

fastboot flashing lock_bootloader

If you run into permission issues while running fastboot then run

Code:

sudo -i sudo usermod -aG plugdev root
and cd back into the fastboot folder

If you still encounter permission denied error then right click the fastboot file > permissions > tick the checkbox for allow executing as a program then save and retry running a fastboot command

If you encounter /usr/bin/dd : input/output error, then the current folder dd has no write access to the current folder. Change the permissions of the current folder

Credits goes to ruslan_3_ for originally sharing the bootloader unlock tool & Petercxy

Video Transcript

Quote: In this video tutorial, I'll be explaining how to unlock the bootloader of a Unisoc (Spreadtrum) Android 9 (Pie) device using its unlock token. Now, you're going to need this modified fastboot. You're also going to need this private key used to sign a lot of Unisoc devices. You're going to need these scripts. Also, you're going to use a Linux based PC so make sure you get that in place. Now, once you have these in place, launch terminal by right-clicking and you select Open in Terminal.

Now, you're going to (or might) run into a couple of issues when using Linux as I did so this is just how to go about (fixing) them. You're going to first elevate your permission level then you're going to run this command to enable you have the permission you need to run fastboot. Now you're going to cd back to the fastboot folder so you just copy the path up here, paste then you tap Enter. Now you're back in fastboot directory. You boot the device into fastboot mode, you can use any method you wish. I boot from recovery mode usually and then I have detection. Next you get the identifier token by running this command.

Now, you select the identifier token then you paste it into this next command. Make sure there's just a space between the token and the private key in the command. Now you select.. sorry, select this, paste and and run (tap Enter). This is going to generate a signature.bin file. Yes, this is the file. Now, you're going to unlock bootloader proper. You paste. At this point, usually, your device is going to request for you to hold a button. I'm yet to run the command though but usually, your device would ask you to authenticate or verify Bootloader unlock either by pressing a button or thereabout. I'm going to run this right now and on my device, I have a confirmation prompt. In my case, I need to just tap volume down. Its going to vary with yours.

Once that is done, you're going to have the phone going into Erase Mode. Its going to erase your data so ensure you had backed up your important stuff before unlocking the bootloader and wait till that is done. Once the bootloader is done (with) unlocking, you're going to have a success message like I have here. At this point, you can either disconnect and boot up the device by holding the power button or you could run fastboot reboot. So that's how to unlock the bootloader of a Unisoc (SPD) Android 9 (Pie) device using its unlock token.

At step 9, the bootloader fails, my phone is X6816D with rom v11, can you help me?

Gargoyle
Contributor

577

29-10-2023, 10:11 AM

#305

@dementr0n
The manufacturer probably used their own OEM key,
this method will not work.

This post was last modified: 29-10-2023, 10:11 AM by Gargoyle.

dementr0n
Newbie

3

29-10-2023, 12:38 PM

#306

(29-10-2023, 10:11 AM)Gargoyle @dementr0n
The manufacturer probably used their own OEM key,
this method will not work.

That is, there is no way to open the bootloader? P.S. manufacturer refused to provide oem key

dementr0n
Newbie

3

29-10-2023, 12:40 PM

#307

(29-10-2023, 10:11 AM)Gargoyle @dementr0n
The manufacturer probably used their own OEM key,
this method will not work.

Bad news, but okay, i buy Xiaomi Wink

deeheper2
Newbie

2

07-11-2023, 03:52 PM

#308

downloading 'unlock_message'...
OKAY [ 0.000s]
unlocking bootloader...
FAILED (remote: Unlock bootloader fail.)

I also encountered this message when trying to unlock bootloader of Realme c21y and itel s23 s665L...

I already loosed my hope of rooting this devices.. do have anyone successfully rooted or unlock boot loader of this devices?

Gargoyle
Contributor

577

08-11-2023, 03:35 PM

#309

(07-11-2023, 03:52 PM)deeheper2 downloading 'unlock_message'...
OKAY [ 0.000s]
unlocking bootloader...
FAILED (remote: Unlock bootloader fail.)

I also encountered this message when trying to unlock bootloader of Realme c21y and itel s23 s665L...

I already loosed my hope of rooting this devices.. do have anyone successfully rooted or unlock boot loader of this devices?

This is the output from vbmeta where it is possible to unlock bootloader where OEM key rsa4096_vbmeta was used
= Public key (sha1): 2597c218aae470a130f61162feaae70afd97f011

Code:

Minimum libavb version:   1.0
Header Block:             256 bytes
Authentication Block:     576 bytes
Auxiliary Block:          16960 bytes
Public key (sha1):        2597c218aae470a130f61162feaae70afd97f011

Realme-C21Y

Code:

Minimum libavb version:   1.0
Header Block:             256 bytes
Authentication Block:     576 bytes
Auxiliary Block:          15872 bytes
Public key (sha1):        9dd3ed7ce047caadf69df067b0d6a98a541e75f4

itel-S665L

Code:

Minimum libavb version:   1.0
Header Block:             256 bytes
Authentication Block:     576 bytes
Auxiliary Block:          14720 bytes
Public key (sha1):        4e691d46efe7a3d2105adc3b8b98a33d2391c178

Realme and iTEL used their own OEM key "Public key (sha1):"

This post was last modified: 08-11-2023, 03:37 PM by Gargoyle.

hosam_asd
Newbie

1

26-11-2023, 09:47 AM

#310

2downloading 'unlock_message'...
OKAY [ 0.000s]
unlocking bootloader...
FAILED (remote: Unlock bootloader fail.)
finished. total time: 0.029s

itel s23
how to solve pls?

View a Printable Version

Users browsing this thread:
8 Guest(s)

Requirements

How to unlock Unisoc (SPD) bootloader using Identifier Token

Find us

Call us

Mail us

Useful Links

Actions

Important Notice