Hey, there welcome to another guide. Today in this tutorial, I will show you How to Install Stock ROM on Samsung Galaxy S21 Ultra. If you have a Samsung Galaxy S21 Ultra smartphone with you, then you can follow this guide till the end.
I have shown you the easiest way to Flash Stock Firmware on Samsung Galaxy S21 Ultra. Sometimes while rooting or while installing custom ROM, we eventually brick our android phone. But you don’t have to worry I have shown you how you can Unbrick your Samsung Galaxy S21 Ultra smartphone and restore stock ROM.
You flash Stock ROM your Samsung device using two methods, one with using Odin flash tool (official method) and second with using TWRP Recovery. If you have already have rooted your Samsung Galaxy S21 Ultra using the TWRP method then you can go with the second method.
About Samsung Galaxy S21 Ultra 5G
Let’s have a quick look at the key specifications of the Galaxy S21 Ultra.
- This phone comes with a 6.8 inches Full HD plus Dynamic AMOLED display.
- Galaxy S21 Ultra has a Snapdragon 888 chipset. It’s an Octa-core CPU.
- We are getting One UI on top of Android 11.
- It has 16 GB of RAM and 512 GB of Internal Storage.
- Talking about the Camera, we get a Penta Rear-facing camera of 108 MP + 10 MP + 10 MP + 12 MP + 0.3 MP and a 40 MP Selfie Camera.
- Galaxy S21 Ultra comes with a Non-removable 5000 mAh battery, which also supports Fast Battery Charging.
Related: How to Install Custom ROM on Samsung Galaxy S21 Ultra. (Custom ROM File May Or May Not Be available as per the development)
Advantage Of Stock ROM:
- Your phone warranty will be back.
- Stock ROM will fix the boot loop problem on Samsung Galaxy S21 Ultra.
- By installing stock ROM will unroot your Samsung Galaxy S21 Ultra, if it’s previously rooted.
- You will able to receive OTA updates.
- All the bugs will be fixed.
Also Read: How to Root Samsung Galaxy S21 Ultra
Let’s Install Stock ROM on Samsung Galaxy S21 Ultra Android Phone –
Now before proceeding to steps, make sure to read the important points that you must fulfill before Installing the Stock Firmware on your Android Phone.
- Make sure to take the full backup of your phone.
- Fully charge your phone.
- You need a PC / Laptop to flash ROM files on your Samsung Galaxy S21 Ultra smartphone.
- This guide is only for the Samsung Galaxy S21 Ultra smartphone. Please do not try this on any other android phone.
Warning: All the tutorials/ guides shown in this blog are not tested for each and every smartphone. As the process of Flashing Stock ROM is almost the same for every smartphone.
If anything happens to your smartphone RootingSteps.com is not responsible for loss and damage to your smartphone. Try these methods with your own risk!
Must Read – Various Issues on the Samsung Galaxy S21 Ultra & How to Fix Them
Steps to Install Stock Firmware on Samsung Galaxy S21 Ultra?
Below I have shown you two methods to flash Stock firmware on the Samsung Galaxy S21 Ultra smartphone. You can choose any of the shown methods according to your convenience.
Method 1: Flash Stock ROM using Odin Flash tool
You need to first fulfill the below requirements before proceeding to the steps.
- Download Samsung Stock Firmware file on your PC.
- Download Odin Tool on your PC.
- You will need a Laptop or PC for this method.
- Fully charge your Samsung Galaxy A51.
1. Once you have downloaded the Samsung stock firmware (.zip) for your device. Extract the downloaded firmware Zip file to an easily convenient location on the PC.
2. Extract the Odin flash tool on the PC.
3. Open the extracted folder and double click on the Odin3.exe file.
4. Connect the Samsung Galaxy S21 Ultra device to the PC while it is in Download/ Odin Mode.
5. After you connected your device you will see the ID:COM section light up blue. Also, you will see Added message under log setion.
6. Click on the AP button and select the firmware file.
7. Make sure to select Auto Reboot and F.Reset Time under the “Options” tab.
8. After that click on the Start button to begin the flashing process.
9. Once the firmware flashing process completes you will Green PASS! Message.
10. All Done! Your Samsung Galaxy S21 Ultra device will automatically Reboot and you can disconnect your device.
Method 2: Flash Stock ROM using TWRP Recovery
1. First, Install TWRP Recovery on Samsung Galaxy S21 Ultra
2. Download Stock Firmware File.
3. Move the Stock Samsung ROM file to your Samsung Galaxy S21 Ultra Internal Storage.
4. Once done, Boot your Samsung Galaxy S21 Ultra to recovery mode by holding the Power Button + Volume Down for 5 seconds.
5. Now, you should see something like this.
6. Go to Install > Locate the Stock ROM that you have just downloaded.
7. Select the ROM file and “Swipe To Confirm Flash”
8. Wait for a couple of minutes, and once the process completes.
9. Reboot your phone.
10. You have successfully flashed Stock ROM on your Samsung Galaxy S21 Ultra android phone.
Also Read: Unlock Bootloader On Samsung Galaxy S21 Ultra
Related article: Unroot Samsung Galaxy S21 Ultra
So, I have shown you the complete steps to Restore Samsung Galaxy S21 Ultra on Stock ROM, Make sure to leave a comment on which if this guide works on your phone. Also, share your valuable feedback in the comment section. I will try my best to solve all the queries of yours as soon as possible.
See you in the next guide 🙂 Cheers