Odin is one of the popular and official tools to flash firmware/stock ROMs to Samsung Galaxy devices. This page contains a step by step guide on how to install or flash stock or custom firmware to your Samsung Galaxy device.
If you would like to know how to flash or install Samsung stock firmware on a compatible phone using Odin tool, kindly read on.
Also included is a simple step by step guide on how to install stock firmware on any Samsung Galaxy Watch/Gear device.
How to Flash Samsung Galaxy Firmware/Stock ROM via Odin Flash Tool
Odin Flashtool is a lightweight software/utility developed by Samsung for servicing or flashing stock firmware/ROMs or custom flash files like TWRP recovery to Samsung devices.
Moreover, Odin is very easy to use and less complicated.
Firstly, extract the firmware/stock ROM for your Samsung device and place it on your computer before proceeding.
Time needed: 5 minutes.
Here’s a step by step guide on how to use Odin Flash tool to flash firmware/flash files to a Samsung Galaxy device.
Before you proceed, make sure you enable developer option and OEM unlock on your Samsung Galaxy phone. Unlocking your bootloader might make you lose your data. Make a backup.
- Install Samsung USB Drivers on your Windows computer
To install the latest official Samsung USB drivers for Windows, visit the official page to download the Android USB drivers for your Samsung.
Once the Samsung Android USB driver for Windows installation is complete, move to the next step.
- Download Odin Flash Tool
Odin is the official software/tool for flashing firmware to Samsung Galaxy phones. Download the latest version of Odin and extract the file to your PC.
After extracting, you should have a folder that looks like this.
- Launch/open Odin3 as an administrator on your Windows PC
To open Odin as an admin, right click on it and select Run as an Administrator. Once it’s open, you should see an image like this.
- Put your Samsung phone in Download/Odin mode and connect it to the computer.
You need to put your Samsung device in Download/Odin mode for Odin to detect it.
To put or boot your Samsung device in Download/Odin mode, turn off your phone completely, press an hold the Power, Home, and Volume down buttons ( newer devices, press the Volume Down + Bixby + Power) button together until you see the warning notification on your screen.
Secondly, press the Volume up button to fully enter into Download/Odin mode. You can now connect your device to the PC.
Once you connect your phone, you will see a green COM port under ID:COM on the Odin flash tool screen. The COM port under ID:COM shows your Samsung device has been successfully connected/detected by Odin.
Odin will also show Added in the logs screen.
- Select the stock firmware to be flashed.
It’s time to flash the firmware. Most Samsung stock ROMs are bundled in a single file while others (4 files/repair firmware) are packed separately as 4 files.
Therefore, you should know your firmware type after extracting the archived firmware file.
There are two kinds of Firmware (Stock ROMs) in Samsung mobile phones:
Single file Firmware
4 files or Repair Firmware
Single file Firmware: This kind of firmware contains the main flashing file (PDA or AP) which relates to your phone device’s system files, and after flashing this file your data won’t be deleted from your phone.
4 files Firmware: This firmware contains:
1. BL or Boot Loader file. Boot Loader is a code which starts processing before the Operating System (OS), and it loads the first part of the OS into the phone’s memory.
2. CP or Phone or Modem files relate to the phone device’s connectivity such as 3G/2G/4G/5G/WiFi/Bluetooth/GPS etc.
Note: It’s very important to flash CP/Phone/ modem file due to the country/area you are living in it.
3. CSC (Common Short Code): This file has data of countries and areas. Data like languages and region-specific settings or apps.
4. Main flashing file (PDA or AP): It contains the system files like boot.img, system.img, recovery.img and a few other core files for the Android OS.
For single stock ROMs:
Click on the AP option and locate the .tar.md5 or the compatible flash file.
For 4 files/repair firmware:
After extracting the firmware, you will need to select the flash files one after the other into the BL, AP, CP, and Home_CSC box.
This is how to select a 4 file/repair firmware for Samsung in Odin.
Firstly, click on the ‘BL‘ button, then choose the file that starts with “BL” inside your extracted firmware folder.
Secondly, click on the ‘AP‘ button in Odin and choose the AP file inside your extracted firmware folder.
Next, click on the ‘CP‘ button, choose the CP file inside your extracted firmware folder.
Finally, click on the ‘CSC‘ button, choose the HOME_CSC file inside your extracted firmware folder.
Furthermore, this is how to understand those files and their functions.
AP/PDA-Application Processor (Can accept files single files like System, Boot, and recovery )
CP(Core Processor) or Modem file
Home_CSC(Consumer Software Customization)
Note, when loading an AP file in Odin, it’s normal for Odin to freeze or take time to load large AP files. Don’t try to close it in this loading stage.
Also, please check the Samsung Firmware Compatibilty page to know the right Firmware to download.
Also note: The pit file tab is for engineer’s only or with 4 Files/Repair firmware. Use with caution!
If you load every file, it should look like this.
- Click on Start to begin flashing the firmware
Once all the files are loaded correctly and your device is still detected by Odin, click on the Start button.
Flashing will take about 5-10 minutes depending on the size of the flash files. Once it’s successfully completed, you will see a green ”Pass” at the top of Odin.
Your Samsung device will reboot into the normal mode and then boot into the system after a while.
Please, make sure your device is charged more than 30%. Therefore, there would be no errors or breaks during flashing due to a low battery.
How To Flash Firmware To Samsung Galaxy Watch/Galaxy Gear Devices Using NetOdin Tool
This is a step by step tutorial to help you install firmware via NetOdin to your Samsung Gear Frontier, Galaxy Watch etc.
This process will factory reset your Watch, so make sure you’ve backed up everything you need!
Also ensure make sure your Samsung Smartwatch is charged up to 70%!
1. Hold down the Home button for 6-10 seconds until the message ” Rebooting … “
2. Quickly press Home three times until the Reboot Menu appears. (The menu is available for about 10 seconds, after which the clock goes back to “Rebooting …”)
3. The menu selection is made by long holding Home button. To go into Download (wireless mode) press the home button until “Download (Wireless)” is highlighted, then hold down the Home button.
4. Download mode will load in WPS mode. Press Home twice to change the mode to the AP.
5. Connect to the access point that appears (for example, SM-R800-a2a5) (ODIN for some reason does not see the device if several networks are connected.)
6. Run NetOdin3 and then set the firmware files for BL, AP and CSC, then click Start (Copying/flashing of firmware takes about 20 minutes).
7. After the files are downloaded, the Watch will reboot. Again, hold Home and highlight & select Recovery in the Reboot menu.
8. The “Setting Up” screen and “Resetting” screen should appear and after that the Watch will reboot and boot as usual.
It is advisable to check whether you have disabled the function “find my watch” or make sure you remember the password to your Samsung Account.
Here are FAQ’s on Odin and flashing firmware or stock ROM to Samsung Galaxy Android devices.
Odin software is very safe for flashing Samsung devices. You should only apply caution when using it. Only flash compatible firmware or custom files to your phone and use the PIT file area with caution.
You could brick your phone or make things worse if you don’t use Odin flashing tool properly.
Odin Flash Tool is professional software developed by Samsung to flash firmware to its Galaxy Android-based devices. It used by the manufacturer internally and also in service centers.
No, you can’t flash .zip files via Odin. Odin only supports compatible firmware files with file format .tar, .md5, .smd, .gz, .tgz, and .bin
To use Odin Flash tool, download the firmware with matching binary that is compatible with your Samsung device and then, follow the in-depth flashing tutorial on this page.
Odin mode, also known as Download mode, is a mode for SAMSUNG devices only.
It is a state that allows you to flash firmware or stock ROM or perform other software servicing operations through the Odin or other software like Z3X, CM2 QLM, Octoplus, NCK, EFT, UMT, etc.
When you’re in Odin/Download mode, you will see a notification of Downloading and some info about your device at the top left.
To get out of Download mode or Odin mode on a Samsung Galaxy phone or tablet, you should do any of these:
Force restart your Samsung phone to exit download mode. To do this, hold down the Power and Volume Down or Bixby button(for newer devices) together until the device turns off. It will then restart into the normal mode.
Pull out the Battery pull. If the battery is removable, just pull it out and replace it back. You can then turn it on normally.
Flash a firmware. You might be stuck in Odin/Download mode due to OS issues. Flashing a firmware should fix it if you’re always stuck in Odin mode.
Also, there are softwares or tools that can fix Samsung stuck in Downloading… Do not turn off target.
Odin mode isn’t bad and it’s safe. Since Odin literally means god, you now become a god over your phone. You can flash custom and stock flash files to your device to customize it as you wish.
Whatever you do with your phone is solely your responsibility.
If Odin doesn’t detect your phone in download mode, here’s what you should do.
1. Close Odin and also disconnect your phone
2. Connect your phone in Download/Odin mode
3. Open Odin as an admin
Odin should now detect your phone. If it still doesn’t detect your phone, please install or reinstall your Samsung USB drivers.
Finally, if none of these works, consider checking the USB port and hub of your phone and PC or update your PC software.
It takes sometime for a device that has just been flashed to boot up to the normal mode. You should wait for it or try doing a factory reset in recovery mode(Volume up + Power button). After factory reset, wait for it to boot up or consider flashing a newer firmware.
If you have any issue following this Odin flashing tool tutorial for Samsung, please, feel free to drop a feedback and I will quickly respond.
And finally, do us a favor by sharing this tutorial. It makes us feel good.