Install Custom ROM On Samsung Galaxy A21? [Complete Guide]

In this article, I have come with a guide on How To Install Custom ROM On Samsung Galaxy A21. This guide will have No Risks of bricking or harming your Samsung Galaxy A21.

Also, This will be the easiest method to Install Custom ROM On Samsung Galaxy A21. To flash ROM we will use TWRP Recovery as it is very convenient and super easy to Flash Files and ROMs.

Page Contents

About Samsung Galaxy A21

This Samsung Galaxy A21 is the newly launched device by Samsung. It has some great features, Here is some Key Specification of Samsung Galaxy A21:

Rumored

What Is Custom ROM?

Custom ROM is a modified version of the ROM. Custom ROM comes with lots of cool features and customization that your original ROM does not have. You can install Custom ROM with the help of custom recovery weather its TWRP Recovery.

You Can Download Custom ROM For Your Phone From Google. Just Type Your Device Model Number + Custom ROM Different ROM Provide Different Feel And Features. So, Choose The One Which Suits Your Taste.

I recommend websites like XDA Developers as they are the most trusted place to download ROM. Any ROM will work as long it is made for your specific device.

Advantages Of Installing Custom ROM

You will be able to Remove Bloatware
Upgrade Your Phone To Latest Version Of Android
Experience New User Interface/ Custom Design
You will get lots of customizations

Disadvantages Of Installing Custom ROM

Your phone warranty will be void
If you missed any steps your phone will be stuck in a boot loop
You will not get OTA Updates
You have manually Update your phone

Warning!

MyPhoneUpdate Is Not Liable For Any Loss Or Damage To Your Smartphone. The Methods Shown In This Site Are Not Tested For Every Smartphone. So, Try It With Your Own Risk.

Pre Requirements

Important Step: Install TWRP Recovery On Samsung Galaxy A21
Fully Charge Your Samsung Galaxy A21 Smartphone
To Install Custom ROM On Samsung Galaxy A21, Your Phone Must Be Rooted. Follow this guide on How To Root Samsung Galaxy A21
Also, Unlock Bootloader On Samsung Galaxy A21
Make Sure To Move Your ROM File To Internal Storage

This Guide Is Only For Samsung Galaxy A21 Do Not Try This Method On Any Other Devices. If You Try Then It Can Brick Your Phone. Follow Each And Every Step Carefully.

Install Custom ROM On Samsung Galaxy A21 Using TWRP Recovery

1.) First Off Enable USB Debugging On Samsung Galaxy A21

Go To Settings >> About Phone >> Now Tap On Build Number 6-7 Times >> Now Go Back >> Go To Advanced Settings >> Developer Options >> Enable USB Debugging

2.) Now Download Custom ROM For Samsung Galaxy A21 From Google.

3.) Move The ROM File To Your Phone Internal Storage

Next Power Off Your Device >> After That Boot Into TWRP Recovery

To Boot Into TWRP Recovery Press Volume Down + Power Button At Same Time Until You See The Boot Animation

4.) Take Backup Of Your Previous ROM

To Do That Tap On Backup >> Keep It On A Default Setting & Choose Your Storage Type >> After That “Swipe To Backup”

5.) Once The Backup Process Completes

Now let’s Proceed To Flashing Process

6.) Go Back To Main Menu >> Tap On “Wipe & Swipe To Factory Reset”

Go Back >> Again Tap On Wipe >> Advanced Wipe >> Check “System” >> Now “Swipe To Wipe”
After That Tap On Home Button >> Tap On Install >> Locate The ROM & Select It >> Now “Swipe To Confirm Flash”

7.) That’s It 🙂 You Have Successfully Install Custom ROM On Samsung Galaxy A21.

Note

The First Boot After Flashing The New ROM Can Take A While It Will Be Slow, It Usually Takes Around 2-3 Minutes. If It Takes More Time Then Don’t Freak Let It Complete There It Will Boot.

Related Article: How To Unroot Samsung Galaxy A21

Final Words: So, that’s the easiest way to Install Custom ROM On Samsung Galaxy A21. If you want to ask any questions related to Installing Custom ROM then make sure to comment down below. We would love to hear from you!