We are providing you with a .rar file to reduce the file size. Please note that you need to convert this file to a .zip format.

Important Note: Store your data before continuing

This guide explains how to flash the Samsung Galaxy S9 firmware. Before proceeding, you need to ensure that you have backed up all the important data. Flashing can cause data to be lost, and there is no way to recover it. Make sure to back up anything important, from files to contacts to applications to whatever else you have signed up for, somewhere safe, such as cloud storage or an external drive.

Downloading the Firmware

• Note: Download the proper firmware that supports your Samsung Galaxy S9 model. The firmware should be downloaded from a legitimate supplier, ideally the official website of Samsung or a trusted website. To ensure you are downloading the correct firmware you can cross-check it against your device’s model number by going to the:
  Settings > About phone > Model number

Make sure to configure the firmware to ensure the stability and functionality of your device after flashing.

Setup and Resilience Operations on Device

• Check that your device has enough battery before continuing with flashing. This avoids possible power outages when flashing, so charge your Samsung Galaxy S9 to 50% at least. Any anomaly can cause software corruption or your device getting crash.

USB Debugging And Developer Options Enabled

• Enable USB debugging on Samsung Galaxy S9 — To perform the flashing possible on your Samsung Galaxy S9 with the PC, you will have to enable USB debugging using these steps:

Open Settings on your device.

• Navigate to About phone.
  (Note: Tap Build number 7x in a row until a message confirms Developer Mode enabled.)

• Back in the Settings main menu, scroll down to Developer options.
• Find and activate USB Debugging Mode.
  This is important since it allows the flashing software to identify your device.

How to Install and Configure Odin

• Samsung Odin: It is a software tool for Samsung devices only – it is used to flash firmware on Samsung devices. To proceed:
• Refer to the Odin download guide from a trusted site.
• Unzip the Odin zip file into a folder on your PC.
• Right-click on Odin. Exe and select to run it as administrator to ensure that it runs with the needed permissions.
• If Odin has opened, you can proceed with the flashing process.

How to Enter and exit Samsung Galaxy S9 Download mode

• To enable the flashing of new firmware on your device, you must boot into Download Mode:
• Power off the Samsung Galaxy S9 completely.
• Continue to hold down the Power, Bixby, and Volume Down keys at the same time.
• Releasing all buttons when the warning screen shows.
• Hit Volume Up to confirm and enter Download Mode.

Your device is now ready to connect to your PC and begin the firmware flashing process.

Connecting Your Device with the PC

• Once you’re in Download Mode on your Samsung Galaxy S9, plug it into your PC via a compatible USB cable:
• Make sure it’s stable, as any kind of disruption while you’re flashing could ruin your device.
• Once attached, Odin ought to make the device recognized. ID: COM box will show a blue indicator means that your device is being detected.
• If Odin fails to see your device, make sure the USB cable is working, try a different USB port, and reinstall Samsung USB drivers.

How to Load the Firmware Files in Odin

• Once Odin recognizes your device, go ahead and load the firmware files:
• Open Odin and click the AP button.
• Go to the directory where you have saved the downloaded firmware.
• Choose the firmware file you downloaded ending with. tar or. Tar. md5 extension.

Before proceeding, make sure you are loading the correct firmware file.
Also, make sure you only have the Auto Reboot and F. Reset Time options checked in Odin’s settings.

Starting the Flashing Process

Steps to start flashing the firmware:

• Press the Start button in Odin.
• The process will start and the respective progress will show up in Odin’s interface.
• It may be a matter of minutes to flash your device — do not unplug or interrupt the flashing process.

Finishing the Flashing Process

• After the flashing process finishes, Odin will show a Pass message as well, meaning the firmware is successfully installed. Samsung Galaxy S9 restarting will happen on its own.
• Reboot into Recovery Mode (Power + Bixby + Volume Up button) and select Wipe Data/Factory Reset if your device is stuck in Boot Loop.
• If Odin doesn’t work or gets stuck, repeat the process from the top and make sure you are following all steps as intended.

Setting up Your Device After Flashing

Once your Samsung Galaxy S9 has rebooted, set your smartphone up:

• Choose your desired language & region.
• Connect to a Wi-Fi network.
• If needed, log in using your Google account to restore backed-up data.
• Follow on-screen instructions to complete the initial setup.
• Once set up, your device will be using the freshly installed firmware.

Important Notes

This process for flashing firmware is only slightly changed depending on Samsung Galaxy S9 versions and firmware.

MY device will not necessarily be rooted when flashing firmware. If you plan to root your device, you will need to use some other steps and tools (more details about accessing root from here).

Be sure always to adhere to the official Samsung guidelines and use Odin responsibly to mitigate the risk of bricking your device.

If in doubt or lack the technical experience, consult or do some further research before undertaking anything that might go wrong.

This guide will surely help you flash firmware on your Samsung Galaxy S9 device and help you restore your device to its full potential functionality if you have followed it properly.