Download and Install Samsung Galaxy S23 Ultra Stock ROM (Firmware Flash File)

The Samsung Galaxy S23 Ultra is the most up-to-date inclusion to the flagship lineup of Samsung gadgets and it runs on Android 13-based One UI 5.1. Keeping your smartphone current is essential for preserving maximum functionality and security. This tutorial provides an exhaustive walk-through on how to update your Samsung Galaxy S23 Ultra to the most recent Android 13-based One UI 5.1 Stock ROM.

There are two approaches to update your device, either through Over-The-Air (OTA) or by manually downloading and installing the update via Odin. This guide covers both procedures in depth, offering step-by-step instructions to guarantee a trouble-free update experience. Whether you’re a tech-savvy user or somebody new to the realm of firmware updates, this guide is ideal for you.

So, fasten your seatbelt and get ready to upgrade your Samsung Galaxy S23 Ultra to the most recent Android 13-based One UI 5.1 Stock ROM. This guide will be very helpful if you want to root your Samsung Galaxy device and something goes wrong and you need the stock firmware.

Download / Install Samsung Galaxy S23 Ultra Android 13-based One UI 5.1 Stock ROM – Firmware Flash File

Method 1: Using the OTA method

  • Head over to the device’s settings menu and then scroll down to the bottom
  • Now, tap on the “Software Update” option
  • You might need to refresh the page to start the OTA upgrade

Method 2: Manually using the Odin method

Download and Install Samsung Galaxy S23 Ultra Stock ROM (Firmware Flash File)

  • Enable USB Debugging Mode and OEM Unlock
  • You can find them in Settings -> Developer Options
  • If you don’t see the developer options on the settings menu, then you should head over to About -> Build number -> click on the “Build Number” option 10 times regularly for activating the “Developer Option” on your device
  • Download the Samsung USB Driver and then install it on the PC
  • Download Odin and then install it on your PC
  • Download the firmware from the below links for Galaxy S23 Ultra Official Firmware – SM-S918B, SM-S918U, and SM-S918W
  • Choose the recent firmware
  • Now, switch off your smartphone
  • Enter the Download Mode
  • Press the Volume Down + Power buttons simultaneously
  • Now, connect your smartphone to your PC using a USB cable
  • Once the Samsung logo appears, you should release all keys
  • Once you have entered the Download Mode, it will show a Warning
  • You will have to press the Volume Up button for continuing
  • Launch the Odin application
  • It will show the message
  • If you don’t get this message, you need to repeat the above steps
  • Once you get the Added Message Select, AP/PDA Button, Browse for the firmware file and then select it
  • Tick the Auto-Reboot option
  • Press Start and then wait for the process to get completed
  • Your device will automatically reboot once the process ends

So here is a detailed guide on Download and Install Samsung Galaxy S23 Ultra Stock ROM (Firmware Flash File). If you have any question or suggestion regarding this guide, feel free to leave that in the comment section down below.

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Aviral Sharma
Aviral Sharma
Android Expert
Aviral Sharma is a talented and passionate writer who has been using words to express his thoughts ever since he learned how to hold a pen. He is passionate about outer space, history, sports, and most importantly, technology. Aviral has been a regular writer for rootmygalaxy for over 6 years and has been covering games and Android guides. He currently owns a Samsung Galaxy S24 Ultra, an iPhone 13, and a HP Pavilion laptop.

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