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How to update your Samsung Galaxy smartphone and install official firmware

Samsung Galaxy smartphones are among the all-time Android smartphones in the market. When it comes to the software update front, the Korean OEM is doing a pretty decent job likewise, keeping its average consumers on new and recent security patches through regular updates. All the same, one thing that's not always like shooting fish in a barrel to come by on Samsung Milky way devices is the stock flashable firmware y'all can wink to either downgrade, upgrade, or restore your phone.

In this tutorial, we'll testify yous how to manually locate the appropriate update bundle for your Samsung Galaxy smartphone, download information technology onto your PC, and finally flash the target device with the updated firmware.

Table of Contents:

• Types of Samsung firmware
• How to download Samsung firmware
  • Recovery-flashable bundle
  • Odin-flashable package
• How to install Samsung firmware
  • Sideloading through recovery
  • Flashing via Odin
• Verification

Types of Samsung firmware

Unlike most Android devices, Samsung Galaxy smartphones and tablets don't have a true fastboot interface for firmware flashing. The Korean OEM adult their ain firmware flashing tool known as "Odin", named afterwards the rex of Gods in the Norse mythology. Odin communicates with a special software component called "Loke" which seems to be named later on some other important graphic symbol in Norse mythology (oftentimes translated as "Loki"). Loke runs on Samsung devices while in download mode and provides the functionality necessary to perform a flashing performance.

Interface of the Odin flashing tool

Odin firmware files are like the mill images for the Google Pixel lineup, just compressed into one single annal and fabricated easy to use via a GUI tool instead of a command line tool such every bit fastboot.

Samsung'due south FUS (Firmware Update Server) also offers incremental besides as full OTA zip files, which are meant to be installed using the stock recovery surround.

How to download Samsung firmware

Earlier nosotros go started with transmission download, y'all should bank check to see if the update has already been sent to your device over-the-air. An OTA update is super easy to download and install. You'll commonly get a notification when an OTA update is available. If not, here'due south how to check for the update on your Samsung Milky way device:

• Go to Settings.
• Scroll downward and tap Software update.
• Tap Download and install.
• Follow the steps to install the update if 1 is available. If non, it will say your telephone is up to date.

If your phone reports its software is upwards to date, but you know an update is available for your model, we tin can take reward of the manual download methods.

Download the recovery-flashable packet

Capturing the OTA packet on Samsung Galaxy devices is a bit of a tricky task, every bit you need to set up a packet sniffing tool beforehand to extract the download URL.

• Configure the package sniffing tool on your phone or PC.
• Start the update download from the built-in updater on your phone but don't pause information technology.
• Go back to the sniffing tool, start information technology, and locate the URL that starts with fota-secure-dn.ospserver.net.
• Download the .bin file using the extracted URL and rename the extension to .zip.

Download the Odin-flashable bundle

Samsung maintains many region-specific and carrier-specific update channels. Every bit a result, you lot take to decide the exact consumer software customization code, A.M.A. the CSC value of your device before downloading the Odin firmware. Keep in mind changing the CSC of an existing device or cross-flashing a different firmware is possible, merely explaining such modifications is out of the scope of this tutorial.

• Download Phone Info Samsung from the Google Play Store. This is to find what your currently active CSC value is. If you already know what information technology is, skip ahead to pace three.

• Open up Telephone Info Samsung and go to the CSC Code tab. It should prove an option that says Agile CSC lawmaking. Note down this three character code as you will need it for a afterward step.

• Yous can also use a Samsung-specific Android secret code — *#1234# — to decide the CSC code. The agile CSC lawmaking can be seen after booting the stock recovery likewise.

• Download Samsung Firmware Downloader. This fantastic tool is created by none other than our own Zachary Wander and it works for downloading all Samsung Galaxy firmware files.
  • Note other tools exist that offer like functionalities. However, Samsung Firmware Downloader is open-source and cross-platform, making it more versatile than the others.
• Open the downloader and enter your model number where it says Model. This will commencement with SM-. You need to make certain to include the SM- or it won't download your files. Next, nether the region section, enter your three-character CSC value from before. Then click Cheque for Updates. This volition detect the latest firmware for your device.

• If no update is showing, this could be because the carrier yous're using doesn't utilize Samsung's servers for updates and therefore doesn't store anything where Samsung Firmware Downloader tin download it. If this is the case, try searching for the firmware of your choice on the device-specific sub-forum. It will usually be uploaded there.
• Click Download and select a file location. This volition kickoff the download and decryption. This tin can have a while depending on your network speed and CPU speed. Samsung Firmware Downloader will tell y'all when the decryption has finished and the file is gear up to exist used for flashing.

How to install Samsung firmware

Depending on the firmware type, the installation procedure may require a PC. Odin, for example, requires Windows, so keep that in listen while trying to update the firmware on whatsoever Samsung telephone.

Sideloading through recovery: Using Android Debug Bridge (ADB)

• Make sure y'all accept the latest version of ADB installed.
• Rename the downloaded .bin package to update.naught.
• Now reboot to the recovery mode. Inside the stock recovery surroundings, you tin coil downwardly using the volume buttons and select an entry using the Power push button.
• Select utilise update from ADB and connect the telephone to the PC using a working USB cable.
• In the Command Prompt/Terminal window, run the following command:

                adb devices            

• Wait to see that the daemon has started and that your device is plant. Then run the following control:

                adb sideload PATH_TO_update.zip            

• The update process volition start and y'all should run into a percentage counting. Once the procedure is completed, the phone will reboot itself, update the apps, and log into your home screen.

Sideloading through recovery: Using an SD carte du jour

• Rename the downloaded .bin package to update.naught and copy information technology to the root directory of your SD card.
• Now reboot to the recovery mode, navigate to the option use update from external storage, and press the Power push button to select information technology.
• At present select the file named update.cipher in a like style.
• The update volition start. Leave it till it completes as the process takes some fourth dimension.
• The phone volition reboot past itself and load the updated firmware.

Flashing via Odin

Warning: Odin isn't actually intended for regular users, merely since it'south an official tool from Samsung, your phone will allow it to load the necessary files for flashing the firmware without unlocking the bootloader. However, using it incorrectly can nonetheless damage your device. Keep with caution.

Grabbing the right version of Odin is the first step. Due to the fact the tool is never meant to be used past consumers, Samsung doesn't host it on a public download portal. Fortunately, XDA Senior Member realbbb maintains a repository of verified copies of the Odin tool. He likewise offers patched variants of Odin (known as "3B patched") that are capable of bypassing a number of stop conditions while cross-flashing.

Download Odin (both unmodified and 3B patched) — XDA Thread

• Grab the latest Odin bundle from the aforementioned thread and unzip the file to somewhere you can call up.
• Make certain you have the latest Samsung Android driver packet installed.

USB interfaces exposed past a Milky way smartphone after installing the Samsung Android driver

• Power off your phone and kick into Download Mode:
  • Former Samsung Galaxy devices: printing Power + Dwelling + Book downwards for about 5 seconds.
  • New Samsung Galaxy devices: press Power + Bixby + Book down or Bixby + Volume down for about 5 seconds.
  • Y'all tin can also use the post-obit ADB command when the device is booted and connected to a PC:

                      adb reboot bootloader                

  • Some of the current generation Milky way devices characteristic a placeholder Fastboot interface. If your phone goes into the Fastboot mode after using the higher up ADB command, so y'all accept to perform a difficult reboot to get back to Android and opt for the following command to access the Download mode:

                      adb reboot download                

• You should see a screen with a large download icon in the middle and a confirmation dialogue regarding binary flashing. Press the appropriate button to proceed to the actual download manner. If yous have the proper drivers installed, yous should see a new device popping upwardly in the Device Manager window.

The download fashion interface of a Samsung Milky way device under Windows

• Open up Odin on your PC past running the exe as ambassador. In the ID:COM section you should come across a teal box that says Added!. This is your device connected in download mode.

• The main section of Odin has buttons for BL, AP, CP, CSC, and USERDATA. These signify corresponding firmware files:
  • BL: Bootloader
  • AP: Collection of Android system partitions
  • CP: Core Processor, i.due east. the modem firmware
  • CSC: Consumer software customization
  • USERDATA: Pre-installed apps and services for carriers
• You may not need all five of these files. It depends on what you're flashing.
  • Old Samsung Milky way devices: selection the single .tar.md5 file every bit AP.

• • New Samsung Galaxy devices: select the appropriate binary for each slot.

• Annotation that flashing a HOME_CSC binary as CSC doesn't wipe your data. However, in case yous want to get-go afresh (eastward.g. you have installed a custom recovery similar TWRP and a custom ROM similar LineageOS and you desire to go dorsum to stock firmware), then select the CSC binary in the CSC tab. Information technology'll completely wipe the /data partition and the internal storage of the device.

• If all looks right (and you have triple checked everything) click the Commencement button. A progress bar volition be displayed in Odin as well as on the phone.

• The process volition take a while and the phone may reboot a couple of times. Don't unplug it before the process is complete. When the process has been completed, y'all will see a "Pass!" condition in a higher place the ID:COM section.

• Enjoy the updated firmware on your phone!

Verification

In one case the phone boots to the home screen, open up Settings from the app drawer or the gear icon in the Quick Settings menu. So, scroll to the lesser of Settings, select Virtually Telephone and choose Software information. Next, find theBuild number entry and locate its value. It should be the aforementioned equally the Odin firmware package you lot downloaded before.

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That'southward it. As you lot tin come across, manually updating the firmware of your Samsung Galaxy smartphone isn't that hard, merely information technology's non a completely straightforward method either. Hopefully, this tutorial made the process easier for you to empathise and follow.

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Source: https://www.xda-developers.com/how-to-update-samsung-galaxy-smartphone/

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