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1- Download Samsung USB drivers.
2- Don’t forget to backup your data as you might loose all your data and media files during this update.
3- You can also enable USB Debugging mode to be on the save side.
4- Make sure your device battery is more than 85 percent.
5- This is an official update from Samsung for its Samsung Galaxy S8 Plus (G955F) only. No other device can be tried to updated with this tutorial.
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How to update Samsung Galaxy S8 Plus (G955F) to XXU1AQH3 Android 7.0 Nougat Firmware:
Step 1- To start things off, download the XXU1AQH3 Android 7.0 Nougat file(link given above in essential downloads).on your personal computer.
Step 2- Extract that downloaded file as zip.file.
Step 3- Download Odin(link given above in essential downloaded)
Step 4- Next you need to turn your Samsung Galaxy S8 Plus (G955F) off, press volume down key and home button and power button together until your see a warning sign on your S8 screen, press volume up when you see warning sign and it will take your device into the download mode.
Step 5- Open the downloaded Odin file on your personal computer.
Step 6- Connect your A5 device with your personal computer with the help of a USB cable.
Step 7- After you connect your device with your personal computer, the ID:COM box will turn into yellow color, we suggest you to wait as this process might take few minutes.
Step 8- Now open the extract file of Android 7.0 XXU1AQH3 you made in second step, clock on the files you need to install on your device. “AP”, “CP”, “CSC”, “PIT”, “BL” are such files you will find in the downloaded extract file. if you can’t see some of any of these files, then ignore this step and carry on to the next.
Step 9- Head back into Odin, and tap F Reset Time option and Auto Reboot option.
Step 10- To start installation process tap on start button in Odin.
Step 11- Once the installation completes, your device will restart itself. Unplug your Samsung Galaxy S8 Plus (G955F) from computer when you see your mobile screen turning on.
You have updated and installed your Samsung Galaxy S8 Plus (G955F) with XXU1AQH3 Android 7.0 Nougat Firmware ROM.
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