Update Samsung Galaxy S8+ SM-G955U1 to Android 8.0.0 Oreo

April 5, 2018 | By androidhowto@youtube | Filed in: Firmware.

Firmware update / Stock ROM : Samsung Galaxy S8+ SM-G955U1 to Android 8.0.0 Oreo. The firmware available for downloading at https://www.sammobile.com/firmwares/galaxy-s8-plus/SM-G955U1/. You can download your Samsung Galaxy S8+ SM-G955U1 firmware at the page and visit it to new update. You can check it from the download link to see all countries. How to Root for Samsung Galaxy S8+ SM-G955U1 is the separated post, this post only for upgrading to Android 8.0.0 Oreo.

Firmware details below is one of the Android 8.0.0 Oreo firmware, you can download it according to your country at the link above.

Model SM-G955U1
Model name Galaxy S8+
Country TMK from USA
Version Android 8.0.0
Changelist 13001792
Build date Mon, 26 Feb 2018 09:10:32 +0000
Security Patch Level 2018-03-01
Product code TMK

How to install Android 8.0.0 Oreo on Samsung Galaxy S8+ SM-G955U1 :

  1. Extract (unzip) the firmware file. Download at https://www.sammobile.com/firmwares/galaxy-s8-plus/SM-G955U1/
  2. Download Odin http://odindownload.com/SamsungOdin/
  3. Extract Odin ZIP file
  4. Open Odin
  5. Reboot Phone in Download Mode ( Turn Power off the phone, Press and hold Volume Down key + Bixby key + Power Key for a while, Release all key when Download Mode / Odin Mode appears )
  6. Connect the phone to PC with USB Cable Data, then Press and release Volume Up key
  7. Wait until you get a blue sign in Odin
  8. Add the firmware file to AP / PDA
  9. Make sure re-partition is NOT ticked
  10. Click the start button, sit back and wait few minutes

If you got Boot Loop after update samsung firmware read this How to Fix Boot Loop After Update Samsung Android Firmwares


  1. Make sure to backup your data, It will erase all the data.
  2. Make sure the firmware is match with your Samsung Galaxy model number
  3. Make sure to ticked F.Reset Time and Auto-Reboot only
  4. if you get error message “SECURE CHECK FAIL: BOOTLOADER” when flashed the ROM, try to use the newest version of the firmware update.
  5. If your device rooted, flashing firmware will unroot it.
  6. Do this with your own risk

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