How to Install TWRP Recovery on Samsung Galaxy A21s and Root it

Samsung Galaxy A21s Device Overview

The Samsung Galaxy A21s is having Samsung’s new Exynos 850 octa-core chipset coupled with RAM options from 3 to 6 GB. The phone has storage options to choose between 64 and 128 GB which is expandable by a MicroSD card up to 512 GB. The phone has a massive 5000 mAh of battery which can be charged using a 15w fast charger that comes in the box. It has a 3.5mm headphone jack as well.

The Samsung Galaxy A21s has a 6.5-inch HD+ 720p resolution super AMOLED display with a punch-hole camera cut out which Samsung calls its infinity-o display. The phone has an aspect ratio of 20:9 and the screen-to-body ratio is around 83%. It has a pixel density of around 270 Pixels per inch (PPI). The phone weighs around 192 grams due to its big battery and its thickness is around 8.9mm.

The phone runs on Android 10 based on Samsung’s One UI 2.0. It has features like dark mode, Android 10 gestures, and better one-handed usage. Galaxy A21s features a rear-mounted fingerprint sensor along with a facial recognition system for the security of the device. It also supports DUAL nano-SIM for connectivity.

The Quad-camera setup of the Galaxy A21s consists of a 48 MP main camera with PDAF, then there is an 8 MP ultrawide sensor, followed by a 2 MP macro and 2 MP depth sensor along with LED flash. It can record videos at 1080p @ 30fps. The phone has HDR and Panorama shooting options as well. At the front, there is a 13 MP selfie shooter in a punch-hole design, it can also record videos at 1080p @ 30 fps

What is TWRP Recovery?

Team Win Recovery Project or TWRP Recovery is a useful and popular custom recovery, which is open-source software. The touch-screen-enabled interface allows users to flash third-party firmware and back up the system or data easily like never before. For Android customization lovers or developers, a custom recovery is a much-needed tool or software.

Additionally, you can install the kernel, modules, root or unroot, take Nandroid backups, etc. Meanwhile, you can wipe system partitions, internal storage, data, cache, vendor, etc. very easily.

Advantages of TWRP Recovery

• Backups of partitions in TAR or raw Image format
• Restore backups from internal storage, external SD storage, or OTG devices
• Install Custom Firmware
• Install flashable ZIPs and image files
• Partition wiping
• Delete System, Cache, Vendor, Partition, User Data, etc
• Install Root or Unroot by flashing ZIPs
• Terminal access
• ADB Root Shell
• Theme Support
• Possible decryption support depending on the device

Steps to Install TWRP Recovery on Galaxy A21s SM-A217F/M

Now before we go ahead and install TWRP Recovery on the Samsung Galaxy A21s SM-A217F/M, let us make a list of pre-requisites that are required to unlock it:

Charge your phone

You need to make sure that your Samsung Galaxy A21s is charged to about 60% before installing TWRP recovery to avoid any boot loop issues during the unlocking process.

Take a complete backup

Before rooting, one of the most important things that you need to do on your phone is to take a complete backup of your phone. For that, you can follow the guide by clicking the link below:

• How to Backup Your Data on an Android device

Activate Developer Options

To Enable the Developer Option on your device, follow the below steps:

• Go to the Settings menu of your Android device.
• Then scroll down and go to About.
• Now you need to head to Software Information>> More.
• Here tap on Build Number 7-8 times until you see a message “You are now a developer”.

You also need to enable USB Debugging and OEM unlock option under the Developer Options menu. And to do that:

• Head over to Developer Options and toggle ON the USB Debugging option as well as the OEM unlock option.

Install ODIN tool

You need to install the latest Odin tool on your PC. For that, you can follow the link mentioned below:

• Download ODIN Tool

Unlock the bootloader

In order to install the TWRP Recovery, you have to first unlock the bootloader on Samsung Galaxy A21s.

Download Samsung USB Drivers

You can follow the link below in order to download the correct Samsung USB drivers for your phone.

Download Samsung USB Drivers for Windows and Mac

Download TWRP Recovery

Here you will find the latest and TWRP recovery for the Samsung Galaxy A21s.

File Name	TWRP Recovery
Version	Latest
Support	Official
Download File	Download

Instructions to Install TWRP

Follow the step by step instructions mentioned below to simply install the TWRP Recovery on your Samsung Galaxy A21s:

Guide to Install TWRP Recovery via Odin Tool

You can check out our full-depth tutorial video as well:

Watch the Video Guide on Steps to Install TWRP Recovery on any Samsung Device

• Once the device booted into TWRP Recovery mode, you need to decrypt the data partition. In order to do it: Go to Wipe > Format Data and follow the on-screen instructions.
• Then reboot to recovery mode again.
• Now, flash the no-verity-opt-encrypt, Magisk, and RMM Bypass zip one by one to prevent boot loops.
• That’s it. Reboot to the system finally. Enjoy!

Root Samsung Galaxy A21s Using Magisk

1. Now you need to install the Magisk Manager APK on your phone.
2. Place it in the internal memory on your device.
3. Then head over to recovery by pressing the Volume up + Power button together.
4. Make sure you have created a backup of your Samsung Galaxy A21s.
5. In TWRP, select Install and locate Magisk.zip and select the file.
6. Swipe to Install and flash it.
7. Restart your device.
8. Voila!

So, there you have it from my side in this post. I hope you guys liked this post and were able to install the TWRP Recovery and root your Samsung Galaxy A21s smartphone. Let us know in the comments below if you faced any issues while installing the TWRP recovery on your phone and then rooting it using Magisk. Until the next post…Cheers!