[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 @ [ Login / Register to download free]
  

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

1. Open the modified_fastboot folder, right-click then select Open in Terminal
   
   
2. Test detection using
   
   
   Code:

   ./fastboot devices
   
   
3. Get Identifier Token using
   
   Code:

   ./fastboot oem get_identifier_token
   
   
4. You should get an output like
   Identifier token:
   XXXXXXXXXXXXXXXXXXXXXXXX
   OKAY [ 0.019s]
   finished. total time: 0.019s
   
   
5. Copy out the Identifier token
   
   
6. Run this command ; replace XXXXXXXXXXXXXXXXXXXXXXXX with your Identifier token
   
   Code:

   ./signidentifier_unlockbootloader.sh XXXXXXXXXXXXXXXXXXXXXXXX rsa4096_vbmeta.pem signature.bin
   
   
7. 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
   
   
8. You should also see a signature.bin file in the modified_fastboot folder
   
   
9. Finally, run this command
   
   Code:

   ./fastboot flashing unlock_bootloader signature.bin
   
   
10. You should get a prompt on the device asking you to push a volume button to confirm unlock, do so
    
    
    
    
11. 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
    
    
12. Reboot the device using
    
    Code:

    ./fastboot reboot
    
    
13. 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
  
• 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 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

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.

[clay#027]

can I just replace that modified fastboot in sdk platform tool folder that already installed in c drive sir ?
I'm talking about windows 10 without Ubuntu setup on it

[innagee]

can I just replace that modified fastboot in sdk platform tool folder that already installed in c drive sir ?
I'm talking about windows 10 without Ubuntu setup on it

you can do that or run the fastboot cmd directly by pressing the shift key > right click and open cmd command here.

[X3non]

can I just replace that modified fastboot in sdk platform tool folder that already installed in c drive sir ?
I'm talking about windows 10 without Ubuntu setup on it

no, you can't use the fastboot here on windows. you must use a linux os

[clay#027]

then should I do a little modify those files permission on it like chmod or something?
files in modified fastboot directory in case

[clay#027]

so which r right? can or can't do this in windows?

[X3non]

then should I do a little modify those files permission on it like chmod or something?
files in modified fastboot directory in case

don't understand what you mean by this. from the guide's point of view, there no need to modify any file permission

so which r right? can or can't do this in windows?

No, you can't use this on windows. I have already answered this in my previous reply

[clay#027]

so I can just use this without changing permission ok and I can't doing this in windows os ok I got it,
for that cuz innagee said that I can do that, that's why I'm asking that again sorry but anyway thanks for ur answer

[simone]

Hi, im using this guide to root teclast p80x, in my win 10 i create a usb live with ubuntu inside, it works. Now when i try t o follow the command in fastboot ( cd path) it gave an error, bash no such a file or directory.... Since im not familiar with ubuntu and since it is live version maybe do i need to install some command or libs? i repeat that im not familiar with it so plaese if you can point me some hint would be great. Thanks in advange and compliment for this site .

[X3non]

Hi, im using this guide to root teclast p80x, in my win 10 i create a usb live with ubuntu inside, it works. Now when i try t o follow the command in fastboot ( cd path) it gave an error, bash no such a file or directory.... Since im not familiar with ubuntu and since it is live version maybe do i need to install some command or libs? i repeat that im not familiar with it so plaese if you can point me some hint would be great. Thanks in advange and compliment for this site .

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