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How to update your Samsung Milky way 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 task as well, keeping its average consumers on new and recent security patches through regular updates. However, one matter that'due south not always easy to come past on Samsung Milky way devices is the stock flashable firmware you can flash to either downgrade, upgrade, or restore your telephone.

In this tutorial, nosotros'll show 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 package
  • Odin-flashable bundle
• 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 take a truthful fastboot interface for firmware flashing. The Korean OEM developed their own firmware flashing tool known as "Odin", named subsequently the rex of Gods in the Norse mythology. Odin communicates with a special software component called "Loke" which seems to be named afterwards another important grapheme in Norse mythology (often translated as "Loki"). Loke runs on Samsung devices while in download mode and provides the functionality necessary to perform a flashing functioning.

Interface of the Odin flashing tool

Odin firmware files are similar the factory images for the Google Pixel lineup, just compressed into one single archive and made easy to use via a GUI tool instead of a command line tool such as fastboot.

Samsung's FUS (Firmware Update Server) as well offers incremental besides as full OTA nothing files, which are meant to be installed using the stock recovery environment.

How to download Samsung firmware

Before we become started with manual download, you should check to meet if the update has already been sent to your device over-the-air. An OTA update is super piece of cake to download and install. You'll usually get a notification when an OTA update is bachelor. If not, hither's how to check for the update on your Samsung Galaxy device:

• Get to Settings.
• Curl down and tap Software update.
• Tap Download and install.
• Follow the steps to install the update if one is available. If non, information technology volition say your phone is up to engagement.

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

Download the recovery-flashable package

Capturing the OTA package on Samsung Milky way devices is a flake of a tricky job, as you need to gear up a packet sniffing tool beforehand to extract the download URL.

• Configure the packet sniffing tool on your telephone or PC.
• Commencement the update download from the congenital-in updater on your phone but don't intermission it.
• Go back to the sniffing tool, start it, and locate the URL that starts with fota-secure-dn.ospserver.cyberspace.
• Download the .bin file using the extracted URL and rename the extension to .zippo.

Download the Odin-flashable package

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

• Download Telephone Info Samsung from the Google Play Shop. This is to detect what your currently active CSC value is. If you already know what it is, skip alee to step 3.

• Open Telephone Info Samsung and go to the CSC Code tab. It should show an pick that says Active CSC code. Notation downwards this iii grapheme code every bit you will need it for a later stride.

• You lot tin can likewise use a Samsung-specific Android undercover code — *#1234# — to determine the CSC code. The active CSC code can be seen afterward booting the stock recovery as well.

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

• If no update is showing, this could be because the carrier you lot're using doesn't use Samsung's servers for updates and therefore doesn't store anything where Samsung Firmware Downloader can download it. If this is the case, try searching for the firmware of your choice on the device-specific sub-forum. Information technology volition usually exist uploaded at that place.
• Click Download and select a file location. This will kickoff the download and decryption. This can take a while depending on your network speed and CPU speed. Samsung Firmware Downloader will tell you when the decryption has finished and the file is ready to be used for flashing.

How to install Samsung firmware

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

Sideloading through recovery: Using Android Debug Span (ADB)

• Make sure you take the latest version of ADB installed.
• Rename the downloaded .bin packet to update.zip.
• At present reboot to the recovery fashion. Within the stock recovery surroundings, you can curl downwardly using the volume buttons and select an entry using the Ability push button.
• Select employ update from ADB and connect the phone to the PC using a working USB cable.
• In the Command Prompt/Final window, run the post-obit control:

                adb devices            

• Wait to run across that the daemon has started and that your device is found. So run the following control:

                adb sideload PATH_TO_update.goose egg            

• The update procedure volition outset and you should see a pct counting. Once the procedure is completed, the phone volition reboot itself, update the apps, and log into your home screen.

Sideloading through recovery: Using an SD card

• Rename the downloaded .bin package to update.zip and copy information technology to the root directory of your SD bill of fare.
• Now reboot to the recovery fashion, navigate to the choice apply update from external storage, and printing the Power push button to select it.
• Now select the file named update.zip in a similar way.
• The update will start. Leave information technology till it completes as the process takes some fourth dimension.
• The phone will reboot by itself and load the updated firmware.

Flashing via Odin

Alert: Odin isn't really intended for regular users, but since information technology'due south an official tool from Samsung, your telephone will permit it to load the necessary files for flashing the firmware without unlocking the bootloader. However, using it incorrectly can even so damage your device. Go on with circumspection.

Grabbing the right version of Odin is the start footstep. Due to the fact the tool is never meant to exist 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 also offers patched variants of Odin (known as "3B patched") that are capable of bypassing a number of cease weather condition while cross-flashing.

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

• Grab the latest Odin package from the same thread and unzip the file to somewhere you can call up.
• Brand certain you have the latest Samsung Android commuter package installed.

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

• Ability off your telephone and boot into Download Mode:
  • Old Samsung Galaxy devices: press Power + Home + Volume down for about five seconds.
  • New Samsung Milky way devices: press Power + Bixby + Book down or Bixby + Volume down for about 5 seconds.
  • Y'all tin can also use the following ADB command when the device is booted and connected to a PC:

                      adb reboot bootloader                

  • Some of the current generation Milky way devices feature a placeholder Fastboot interface. If your phone goes into the Fastboot mode afterwards using the higher up ADB command, and so you have to perform a hard reboot to get back to Android and opt for the following command to admission the Download style:

                      adb reboot download                

• You should run across a screen with a large download icon in the middle and a confirmation dialogue regarding binary flashing. Press the appropriate button to keep to the actual download mode. If you have the proper drivers installed, you should come across a new device popping up in the Device Manager window.

The download style interface of a Samsung Milky way device nether Windows

• Open Odin on your PC past running the exe as administrator. In the ID:COM department you should see a teal box that says Added!. This is your device continued in download mode.

• The master section of Odin has buttons for BL, AP, CP, CSC, and USERDATA. These signify respective firmware files:
  • BL: Bootloader
  • AP: Drove of Android system partitions
  • CP: Core Processor, i.e. the modem firmware
  • CSC: Consumer software customization
  • USERDATA: Pre-installed apps and services for carriers
• You lot may not need all five of these files. It depends on what you're flashing.
  • Old Samsung Galaxy devices: pick the unmarried .tar.md5 file as AP.

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

• Note that flashing a HOME_CSC binary as CSC doesn't wipe your information. However, in case you desire to start anew (due east.m. you take installed a custom recovery similar TWRP and a custom ROM like LineageOS and you desire to go back to stock firmware), so select the CSC binary in the CSC tab. It'll completely wipe the /data partition and the internal storage of the device.

• If all looks correct (and you accept triple checked everything) click the Offset button. A progress bar volition be displayed in Odin besides as on the phone.

• The process volition take a while and the telephone may reboot a couple of times. Don't unplug it before the process is complete. When the procedure has been completed, you volition run into a "PASS!" status above the ID:COM section.

• Enjoy the updated firmware on your phone!

Verification

Once the phone boots to the home screen, open up Settings from the app drawer or the gear icon in the Quick Settings menu. Then, scroll to the lesser of Settings, select About Telephone and choose Software information. Adjacent, detect theBuild number entry and locate its value. It should be the same every bit the Odin firmware packet you downloaded earlier.

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That'south information technology. As you tin can see, manually updating the firmware of your Samsung Milky way smartphone isn't that difficult, just it's not a completely straightforward method either. Hopefully, this tutorial fabricated the procedure easier for you to understand and follow.

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

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