How to Boot Vivo X21 UD into Recovery Mode and Fastboot Mode

Want to know How to Boot Vivo X21 UD into Recovery Mode and Bootloader Mode or Fastboot Mode? Check out the instructions listed on this page to successfully boot Vivo X21 UD into Recovery Mode and Bootloader Mode or Fastboot Mode.

Vivo X21 UD Recovery Mode allows a user to troubleshoot and fix problems with their device. In addition, recovery mode can access some core functions of the device, such as factory resetting the device, wiping cache, Installing updates, backup and restoring data, flash root packages and other zip mods, etc.

Vivo X21 UD Fastboot Mode or Bootloader Mode is used to re-flash system partitions on the device. It is an alternative to the recovery mode but is more advanced. It helps to modify or write data directly to your device's flash memory.

Vivo X21 UD Bootloader Mode or Fastboot Mode can be used to unlock the bootloader, flash a custom recovery (CWM, TWRP, Philz, etc.), flash stock ROM, flash custom image files, and more.

Also: Vivo Y75 Recovery Mode and Fastboot Mode

Boot Vivo X21 UD into Recovery Mode

Below are the methods using which you can boot Vivo X21 UD into Recovery Mode.

Boot Vivo X21 UD Recovery Mode using Hardware Buttons

Power off your phone.
Once the device is off, press and hold the Volume Up and Power button together for a few seconds.
When the Fastboot Mode screen appears, release all the keys.

After that, Select Options “Recovery Mode” by using the Volume key to scroll down and the Power button to accept it.
Now, your phone should boot into Recovery Mode.

Boot Vivo X21 UD into Recovery using ADB command

First of all, install the Vivo X21 UD USB Driver and ADB and Fastboot Drivers on your Windows computer.

Now, enable "USB Debugging" on your phone from Developer Options. If Developer Options is missing, go to Settings → About Phone and tap on Build Number about 7-10 times.
Connect your device to computer and open Command Prompt (CMD).
Now, enter the below command in CMD to boot Vivo X21 UD into Recovery Mode.
```
adb reboot recovery
```

Boot Vivo X21 UD into Fastboot Mode / Bootloader Mode

Below are the methods using which you can boot Vivo X21 UD into Bootloader Mode or Fastboot Mode.

Boot Vivo X21 UD Bootloader Mode/Fastboot Mode using Hardware Buttons

Power off your Phone.
Press and hold the Volume Up + Power button together for a few seconds.

Now, your phone should boot into Fastboot Mode.
In Fastboot Mode, Use Volume keys to navigate and Power button to select the option.

Boot Vivo X21 UD Bootloader Mode/Fastboot Mode using ADB command

Assuming ADB and Fastboot Drivers and USB Drivers installed on your computer.

Enable "USB Debugging" on your phone from Developer Options. If Developer Options is missing, go to Settings → About Phone and tap on Build Number about 7-10 times.
Connect your device to the computer using a USB cable and open Command Prompt (CMD).
Enter the below command in the Command Prompt window.
```
adb reboot bootloader
```