How to upgrade Android 8.0 (Oreo) for Samsung S8 (G950U) and S8+ (G955U)

Here is the update guide for Android 8.0 (Oreo) for Samsung Galaxy S8 (SM-G950U) and S8 + (SM-G955U).

NOTE:

• Backup data to avoid data loss.
• Battery must be >70%.
• We are not responsible for any risks during the upgrade process.

DOWNLOAD:

• S8 (G950U):
  • Android 7: G950USQU1AQGL.zip (3,6G) 
  • Android 8: Android_8_G950U.zip (1,4G)
• S8+ (G955U):
  • Android 7: G955USQU1AQGL.zip (3,4G)
  • Android 8: Android_8_G955U.zip (1,4G)
• ODIN: Odin v3.12.7
• Driver: SAMSUNG_USB_Driver_for_Mobile_Phones.zip

HOW TO UPDATE:

1. Flash your phone to Android 7 by Odin v3.12.7
2. After back to Android 7, we’ll update device to Android 8 by Sideload in Recovery
3. You need to download adb-fastboot.zip
4. Extra adb-fastboot.zip to adb-fastboot folder
   
5. Copy Android_8_G95xU.zip file to adb-fastboot folder
6. Reboot device to Recovery mode (Press Volume Up + Home + Power)
7. In Recovery Mode, select to Apply update from ADB and press Power buttom
   
8. Install driver: SAMSUNG_USB_Driver_for_Mobile_Phones.zip
9. In adb-fastboot folder, open ADB_Tools file and type:
   – Samsung S8: adb sideload Android_8_G950U.zip
   – Samsung S8+: adb sideload Android_8_G955U.zip
10. After update, you need to choose Wipe data/factory reset
11. End, reboot and done. Have a nice day 😀