Unlocking Bootloader on any Vivo device is also said to be the bios of the Android Device. Bootloader checks for hardware initiation, kernel check, and ramdisk, which turns and gives permission to boot the Android Device. This Bootloader is similar to bios that is identical to any Gadgets right from Laptop to PCs and the gaming consoles these days. So, by unlocking the Bootloader, we can install Custom Kernel, Custom ROMs, Rooting your Android Device, Back up your Android device to the root directory, and many more. Unlocking bootloader might breach your security, and to tackle this, the smartphone manufacturers made it clear that if you unlock your device’s Bootloader, it may void your warranty.
Many users like to customize their phones to make it more fun and fabulous to use. Vivo devices come with a locked Bootloader, so if you want to install any custom ROM or custom recovery or Kernels, you need to Unlock Bootloader on Vivo devices.
In this article, you can unlock Bootloader on Vivo devices and root your Android device. If your device is new, it may take some time to create ROMs and create custom bootloaders for your device and kernels, which makes your device more efficient. It allows you to customize the functions, unbrick the device, and gain more control on your device.
Pre-Requisites
- You should have a Laptop or PC to unlock Bootloader on Vivo device.
- Unlocking Bootloader may wipe your data. It is best to take a complete backup.
- Maintain at least 60-80% charge to prevent accidental shutdown.
- Download Vivo USB Drivers.
- Follow the guide carefully, or else it may lead to bricking of your device.
Downloads
Vivo Fastboot Drivers: Download
How To Unlock Bootloader On Vivo Devices
Method 1
- Download and extract the Vivo Fastboot tool on your laptop or PC.
- Go to Vivo fastboot folder and press “Shift + Right Mouse” and click on the open command window here.
- To reboot your Vivo device in bootloader mode by pressing power and vol – buttons simultaneously.
- For older phones, type in the below command
fastboot bbk unlock_vivo
-
For new Vivo phones follow the command provided below
fastboot bbk vivo_bsp unlock_vivo
- If You Want to lock it again then enter the following commandfastboot bbk lock_vivo
That’s all! You are done with the unlocking bootloader of the Vivo phone and you can get ahead with installing custom ROM on your device.
Method 2
Note: This is an unofficial method, your device may get bricked.
Download
BLUnlocker v1.zip – Download
QDLoader HS USB Driver.7z – Download
- Download and Extract the BLUnlocker_v1.zip
- Download and Install QDLoader HS USB Driver for Qdloader 9008 mode.
- Now, press the volume up and down buttons at the same time and connect the USB while ypur are still holding the volume buttons.
- Download and Extract the firehose file from the stock firmware (Named ‘prog_emmc_firehose_****.mbn’) and paste it in the current directory.
- Check the port number of the Vivo device in the device manager.
- Double click on the ‘dump_devinfo.bat‘ file.
- Enter the port number of the device and press enter
- Using HxD Hex Editor edit the devinfo.img as shown in my video below.
- Double click ‘unlock.bat’
- Done!
Confirmed Devices
- Vivo X-Play 6
- Vivo Y53
- Vivo Y51L
- Vivo Y21L
- Vivo X9 (there are some problems)
- Vivo Y55
- Vivo X21 UD Plus (Below mtk method)
- Vivo V7 Plus
- Vivo Y65(IDK which method)
- Vivo Y85
Sir/Mam we can’t unlock bootloader on our mobile, an error showing ” devices/emulators not found ” occurs each time when we try the command. Please help us. Thanku
After typing fastboot bbk vivo_bsp unlock_vivo, it says “waiting for device”
Am i supposed to wait for this part??? I think its taking so long is it normal?
Make sure that you have enabled USB Debugging, install USB drivers (search in this site for drivers) and try to connect with another USB cable
How to unlock bootloader of vivo v7 1718??
Sir, i typed fastboot bbk vivo_bsp unlock_vivo already, but in the cmd it showing and it looks like I have to choose
There are w,s,u, and something else like
—device….
I checked that my device is still locked
Can you help me with that?
Pls answer me as soon as possible
what exactly the error is showing?
Something like:
-w (definition of W
-S (Definition of S
-U
– …….
And keep going like that
What is your device model?
My device model is Vivo Z5x 2020, but none of the commands are working for me
It says all done but when i check the status of bootloader it shows locked always. i had tried it almost about 10-15 times but still i got the same message. what is the solution of this?.
device is locked? What is that supposed to mean?
OEM and USB debuggin in developer option bot enabled
This method not working fine bro suggest any new methods
We have updated the steps and download links. Do check
Why this method not work with vivo u10, always shows “check Signature Fail”
Sir, can you help me with my phone. I’ve tried the process several times but still failed. My phone is Vivo y91 1811.
We have updated the download links and steps. Do check.
We have updated the steps and download links. Do check
Device is lock why plz fix help me
We have updated the download links and steps. Do check.
We have updated the steps and download links. Do check.
Is this working for VIVO V11 Pro (1804) ?
Kindly update the unlock commands for VIVO z5x 2020 version. The current commands are not working
How to unlock bootloader of vivo y15 2019 model 1901 plz tell me…
my pc shows fastboot: usag : unknown command bbk
please help me…….
Hi admin,
I’ve tried to unlock bootloader of vivo y81 (1803) mtk6762 with adb-platform tool via cmd but it failed..
how to unlock bootloader of vivo y91 1811
Please help me to unlock my vivo y17 bootloader
How to solve issue when it shows
“Failed:Unknown Command or Device is locked” in vivo y53
same
How to unlock bootloader in vivo y71
not working in vivo y91c
What can be the root in vivo y53?
Is it possible to unlock bootloader for vivo y20 (V2029 model)
Can’t unlock vivo y11
But sir I’m unable to to on oem unlocking bcz my device not powering on yet
I tried the method1 specified above, it said something like ‘Failed ‘. So, is there a way to bypass the verification or do I have to modify the drivers?
FAILED, remote – signature verify failed
Sir please tell me what to do to unlock bootloader of vivo1606 pls sir it’s urgent
PS C:\Users\Admin\Desktop\vivo_fastboot_for_windows> adb reboot bootloader
PS C:\Users\Admin\Desktop\vivo_fastboot_for_windows> fastboot bbk unlock_vivo
usage: fastboot [ ]
commands:
update reflash device from update.zip
flashall flash boot + recovery + system
flash [ ] write a file to a flash partition
erase erase a flash partition
format format a flash partition
getvar display a bootloader variable
boot [ ] download and boot kernel
flash:raw boot [ ] create bootimage and flash it
devices list all connected devices
continue continue with autoboot
reboot reboot device normally
reboot-bootloader reboot device into bootloader
help show this help message
options:
-w erase userdata and cache (and format
if supported by partition type)
-u do not first erase partition before
formatting
-s specify device serial number
or path to device port
-l with “devices”, lists device paths
-p specify product name
-c override kernel commandline
-i specify a custom USB vendor id
-b specify a custom kernel base address. default: 0x10000000
-n specify the nand page size. default: 2048
-S [K|M|G] automatically sparse files greater than
size. 0 to disable
PS C:\Users\Admin\Desktop\vivo_fastboot_for_windows>
its showing this please help me
How can I unlock my vivoz1x bootloader using the another android phone throw the otg cable…pls help me cos I have no pc or laptop
while peroforming command showing this error
…
FAILED (remote: unclock fail.)
finished. total time: 0.000s
help??
yes how this fix this problem
yes how this fix this problem
Please give comands fo vivo y72 android 12 os version becase this comands no t work