unlock bootloader Vivo phones

Many Vivo users would to tweak their phone, but they usually struggle around Google to find out how to gain the root access on their Vivo phones. While there are a  lot of tutorials on the internet, explaining how to unlock bootloader and root Vivo smartphones, almost them do not work.

Vivo developers have already modified the bootloader, so users will need to use different command for unlocking/ relocking bootloader over stock Android commands.
If you are using Vivo y51l, you will then need to upgrade it to the latest build, (upgrade to PDF1510_2.6.7). So, a modified fastboot binary is required for the bootloader unlock.

If you are looking for a solution to root your Vivo phone, this guide will show you how to easily unlock bootloader and gain the root access on your Xiaomi phone.

WARNING!

 The process will void your warranty. Simply follow these steps below to unlock bootloader of your Vivo phones. First of all, you need to download fastboot binary from the link below.
Download : Vivo_fastboot :- Linux Windows

When done, extract the downloaded files and then open Command Prompt or Terminal in the directory. Next, go to Settings > Developer Options and enable USB debugging for correct connection.

After that, power your Vivo phone off and enter the fastboot mode by pressing Power + Volume Down buttons simultaneously.

If you are using Linux, then type in



sudo ./fastboot bbk unlock_vivo

For Windows: the command is

fastboot bbk unlock_vivo

That’s it! Your Vivo has now successfully unlocked bootloader.

To relock it, type in the command:



fastboot bbk lock_vivo


For Linux:



sudo ./fastboot bbk lock_vivo

There is also a new command for some Vivo models that other Vivo users can make a fastboot binary through the command below:


fastboot vivo_bsp unlock_vivo

You can now flash twrp recovery and Custom Roms on your Vivo phones if you like.

If you are using a newer model of Vivo phone, you can then use a new way to unlock bootloader your phone. Since it’s the unofficial method and might brick your phone (only 0.01%). We are not responsible for any data loss to your phone storage, PC. If you are trying to use this method for the bootloader unlock, you should use at your own risk !


Download Files :

BLUnlocker_v1.zip
QDLoader_HS_USB_Driver.7z

Steps to Unlock Bootloader of Vivo Phones



Step 1: First, extract the BLUnlocker_v1.zip on your computer
Step 2:  Install Qualcomm USB Driver to enter Qdloader 9008 mode.
Step 3: On your phone, press Volume Up + Down buttons at once while it to the computer at the same time.
Step 4: Get the firehose file from the stock firmware of your phone. It’s usually  (‘prog_emmc_firehose_****.mbn‘) and put it in the current directory.
Step 5: Check the port number after your phone is connected in Device Manager.

Step 6: Double click on the ‘dump_devinfo.bat‘ file.
Step 7:  Enter the port number and then hit Enter

Step 9:  Now, edit the devinfo.img with HxD Hex Editor
Step 10: Double click on ‘unlock.bat’ and your Vivo has been unclocked bootloader.

Above are easy ways to unlock bootloader of Vivo smartphones. If you see this post helpful, let’s know in the comment below.

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