Vivo Y21E PD2158F Unlock Bootloader

by Editorial Staff
Vivo Y21E PD2158F Unlock Bootloader with Fastboot Method

Bootloader Introduction

The Bootloader is a code that always runs when someone power on its device. Some hardware starts automatically and gets the boot process then loads the kernel and ramdisk. That is the Bootloader. It allows you to Root your Vivo Y21E PD2158F, Flash TWRP, and Custom ROM in a simple easy method.

Bootloader Advantages

  • You can install any custom ROM like Lineage OS, Resurrection ROM, etc.
  • You can also root your device.
  • Install a custom recovery like TWRP.

Vivo Y21E PD2158F Bootloader Disadvantages

  • After unlocking the bootloader, it voids the warranty of your device.
  • You will no longer receive the official OTA updates.
  • You can brick your device if you do not follow the steps carefully.


  1. You need a PC/laptop
  2. Make sure that your Vivo Y21E PD2158F is charged more up to 70%
  3. You need a Micro USB cable to connect your phone with PC
  4. Now download ADB and Fastboot Tools and Extract them in your PC
  5. Download Vivo Y21E PD2158F USB Drivers

On this page, you will learn how to unlock the bootloader on your Vivo Y21E PD2158F. Using the bootloader you can install custom ROM, custom recovery, custom kernel, and flash the factory images, etc. The bootloader will help you to unlock your device legally binding, but it will affect the device warranty. Vivo doesn’t allow you to unlock the bootloader. Mostly Android OEM manufacturers lock the bootloader, if you want to install any CUSTOM ROM, you must need to unlock the bootloader of your Y21E PD2158F. It will void the warranty.

Vivo Y21E PD2158F Unlock The Bootloader Quick 10 Steps

Step 01: Firstly, you need to enable the Developer Options on your Vivo Y21E PD2158F.

Go to Settings->>About Phone->> and press the Build Number 6 to 7 times until you see a pop message that shows you “You are now a developer”.

Into the Developer Options, now you need to Enable USB Debugging, and the OEM Unlock Option.

After that, again head to the Settings>>>>Developer Options>>>>enable USB Debugging and OEM Unlock.

Step 02: Download and setup the ADB and Fastboot tools on your Computer.

Step 03: Now, connect your Y21E PD2158F to your Laptop/PC using a USB cable.

Step 04: Now, you should wait until all the USB Drivers installed on your computer.

Step 05: Now open the CMD or command prompt and go to the same folder, where you have extracted the contents of the ADB and Fastboot tools.

Step 06: After that, type the below command into the command prompt area and press the Enter button;

Step 07: You will see a popup message on your smartphone such as “Always allow from this computer”. Now You can press the OK button.

Step 08: You should type the below command to enter the bootloader mode, and press Enter; button on your keyboard.

ADB reboot bootloader

Step 09: Now, you must enter the below command so your Y21E PD2158F and you will reboot into Fastboot mode;

Fastboot flashing unlock

Step 10: Now, enter again your device into the Fastboot mode using the Volume Down + Power button together.

Step 11: After that, enter the below command;

Fastboot flashing unlock_critical

Step 12: That’s It! You have successfully unlocked the bootloader of the Vivo Y21E PD2158F device.

Video Tutorial

Read Me Once

The Bootloader unlocking process will affect your Vivo Y21E PD2158F phone data like images, videos, and files. We advise you before start unlocking bootloader you need to create a backup and save it in a safe location.