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Samsung Galaxy A21s Flashing Guide with Odin Flash Tool

Odin is one of the best Samsung smartphone flashing tool to flash only Samsung smartphone. We can flash custom ROMs, zip files, kernels, and other similar flashing over Samsung device with Odin tool.

In this article, you will learn to use Odin flashing tool on your Samsung smartphone to bring new improvements & fixes for your smartphone. Odin will allow you to flash official stock ROMs, custom ROMs on your Samsung devices running on Android OS.

Download Samsung SM-G615FU Download USB Driver
Download Samsung SM-G920S Download USB Driver
Download Samsung SM-A500Y Download USB Driver

Download Odin Flash Tool: Odin is a software and it also supported for Samsung devices only. It offers powerful features to flash firmware, install a custom recovery, and install root on your Samsung device. We have details guide on download the Odin Flash Tool. Unlock Bootloader. Odin tool developed by Samsung developers fixes bugs, glitches, and boot loader errors. It is trust-worthy side by side, convenient to use. Another third-party tool 4uKey for Android is a powerful contender to get rid of FRP lock in Samsung smartphones.

So, if you want to flash your Samsung Galaxy A21s device, then you are the right page where we are going to guide you how to flash Samsung Galaxy A21s device to get rid of unusual errors like application errors, touchscreen errors, download errors, virus inside internal memory, loading a boot loop, other similar errors. To fix these you might want to try factory reset to get rid of errors but if you have already done this too but nothing changed then follow the steps below and start flashing Samsung Galaxy A21s with odin flashing tool.

Pre-requisites to before flashing Samsung Galaxy A21s:

Make sure your device battery is charged up to 70% before flashing
Backup your entire device data, in case of any flashing error
Make sure you download Samsung kies to fix any USB driver errors
Download Odin flashing tool
Download Flashing firmware file (Scatter file + files to be flashed) that you will be flashing over Samsung Galaxy A21s with Odin

How to flash Samsung Galaxy A21s with Odin flashing tool

Follow the steps below to be able to flash Samsung Galaxy A21s with Odin flashing tool:

Extact Odin from .zip file on desktop of your PC
Also, extract Samsung Galaxy A21s firmware file on desktop to get .md5 file
It is time to enter in download mode of your Samsung Galaxy A21s
Now, turn off Samsung Galaxy A21s device, press + hold the Volume Down + Home + Power keys all together
You have successfully entered in download mode
Connect Samsung Galaxy A21s to your PC using a USB cord
Run Odin .exe file on your Windows PC
Now, you will see Odin ID : COM turned Blue (that means your device is added successfully)
Your device is ready to go under flashing process
Click on PDA in Odin, browse the extracted firmware folder to select the file with .md5
Wait until Odin checks .md5 file is valid (you will get notification about file in message box)
Finally, click START button in Odin, and wait until the process is complete (PASS)
Restart will be performed automatically
Congratulations you got new samsung phone enjoy it now.

If you are trying to flash your Samsung Galaxy A21s device then I would like to suggest you to try using Smartphone flash tool (aka SP Flash Tool). SP flash tool is great flashing tool for Android. This is a best application which mainly help you to flash your smartphone.

You can use this tool to flash almost any MTK (Mediatak IC) based and stock ROM, also custom recovery fixing in some extreme cases like firmware update and download, unbrick bricked android device smartphone. Try flashing any custom ROMs, stock ROMs on your Samsung Galaxy A21s Android smartphone..

SP flash tool is best firmware flashing tool available online whether it is custom ROM or stock ROM. Using SP Flash Tool, you can flash Samsung Galaxy A21s Android device (but make sure to check if it is based on Mediatek IC). Flash any custom or stock ROM over Samsung Galaxy A21s Android device. Also, do make sure that you have installed Samsung Galaxy A21s USB drivers properly on your PC before flashing any firmware file.

Samsung SM-G615FU Download USB Driver Official USB drivers
Samsung SM-G920S Download USB Driver Official USB drivers
Samsung SM-A500Y Download USB Driver Official USB drivers

Find your Samsung Galaxy A21s USB drivers by using search below:

You can download SP Flash Tool from our website downloading section. Also you need to download scatter file for your MB based device.

Let me tell you what we can do with SP Flash tool

1. We can flash to android stock Rom
2. Easliy Flash custom ROM
3. Application for fixing bricked or unbrick device
4. Easy to read, write parameters
5. We can erasing, formatting data and reset your MTC based devices

Pre-requisites before flashing Samsung Galaxy A21s:

Battery should be charged up to 70%
Make sure you have Samsung Galaxy A21s's USB cord available
Download and install SP Flash tool in PC
Since, SP flash tool we need to install MediaTek USB drivers
Download Samsung Galaxy A21s firmware file (Scatter file + files to be flashed)
Last but not the least, you need to take your device backup (for safety reasons)
Once you have all the things ready above, follow the rest of flashing tutorial

Here are the Requirements For SP Flash Tool

1. You have Pc or Laptop
2. You need USB data cable for the device
3. Drivers download (MediaTek USB-VCOM drivers)
4. Download Scatter file and files to be flashed
5. Note Backup the device (forum.hovatek.com/thread-468.html)
6. SP Flash Tool Download

Steps to flashing Samsung Galaxy A21s using SP flash tool

Follow the steps below to flash Samsung Galaxy A21s with SP flash tool:

Download & install spflashtool.exe:

Download SP flash tool, spflashtool.exe

Download flash recovery image:

FLashing is not easy, it take time and patience. To flash Samsung Galaxy A21s, make sure you have flash recovery image ready for your device model.

Load scatter file:

Click Scatter Loading (Load Scatter file of Samsung Galaxy A21s).

Uncheck all boxes :

Now, you should uncheck all boxes from SP flash tool

Load Recovery Image:

Tick-box, Go to / click RECOVERY box from list and load recovery image of your Samsung Galaxy A21s device (load image from the separate window -->open)

Recovery box must be CHECKED:

Recovery box is checked before you connect your Samsung Galaxy A21s, in recovery image location (uncheck all other boxes)

Turn off and connect Samsung Galaxy A21s with PC:

Turn off Samsung Galaxy A21s and connect it with PC

Click Download button:

After connecting your device with PC, just click download button on top

Step #9, click yes:

If it ask click “yes”

Conguratulations:

Congrats! You have successfully flashed your Samsung Galaxy A21s device

Odin Samsung Flash Tool Download

Disclaimer: Please follow the flashing tutorials on your own risk.

Conclusion

If SP flash tool prompts green circle, you are done. Samsung Galaxy A21s have been flashed using SP flash tool.

Samsung Odin Mode Tool

Odin is a tool for flashing stock firmware’s released by Samsung. Odin is one of the best ways to keep your phone up to date with the most recent firmware versions. With Odin you can flash files with .tar.md5 or .tar extensions, But still Odin does not recognize .zip file extension. You can flash latest Samsung Stock firmware’s, Stock or Custom Recovery, install Custom ROMs and you can root your Samsung device with most popular CF Auto Root method. You can download Odin for Samsung Galaxy devices all versions from below.

Download Odin for Samsung Galaxy Devices (All Version) –

Here you can download the latest version of Odin for PC. Also, we provide you the old version too if you want to download the old version of Odin. Download Odin for Samsung Galaxy devices all versions from below-

Download Odin_v3.09.zip (recommended if using JB or KitKat)

Download Odin 3.12.3 zip file (Recommended)

Features of Odin –

1) Flash Stock Rom – You return to stock ROM anytime, if anything wrong happens to your phone or if it stuck on the Samsung logo or stuck on the Bootloop. Odin will help you to flash Samsung Stock Firmware.

2) Flash Custom Recovery – Odin allows you to flash a custom recovery on your Samsung Smartphone.

3) Flash Custom Kernal – You can flash a custom kernel on your Samsung device to tweak your device.

Odin Samsung Tools

4) Root your Device – CF Auto Root providing a simple way to root your device via Odin. You can customize your device after rooting your phone.

How to Use Odin Tool –

Here we show you the basic functionality of how to use Odin tool to flash .tar or .md5 files. You can Download Odin for Samsung Galaxy devices from above before using the Odin tool.

1) First Download Odin for Samsung Galaxy devices from above and extract the zip file.

2) Connect your Samsung device to your PC with the data cable and reboot into the Download/Odin mode.

3) To enter into download mode turn off your phone and press and hold the ‘Home + Volume Down + Power’ buttons together until you see the download mode screen.

4) Now press Volume Up button to enter into download mode. Now you see an ID: COM port turned blue means your device has recognized by Odin.

Samsung Flash Tool Odin

5) Make sure that only these two options are tick “Auto Reboot” and “F.Reset Time“

6) Now you are ready to flash stock firmware, stock/custom recovery or any .md5/.tar file. To flash .tar/.md5 files click on AP (PDA) and select the file.

7) Odin will initialize and check the md5 file after selecting.

8) Now click ‘Start‘ button and it will start flashing the file. Wait until you see ‘Pass‘ in green Color on Odin screen.

So this is the complete guide to Download Odin for Samsung Galaxy devices all versions, Features of Odin and how to use Odin Tool. If you have any doubt comment below.

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