How to root Samsung Galaxy S8 Plus SM G955U

Root Samsung Galaxy S8 Plus SM G955U with image guide. After root you can install custom Rom, apps and custom Setting on Samsung Galaxy S8+.

Hi, this is tutorial of root Samsung Galaxy S8 Plus SM G955U. This root guide is working on Samsung Galaxy S8+ SM G955U Android 7.0 Nougat. It is safe and easiest method for root Samsung Galaxy S8 Plus SM G955U.

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Samsung Galaxy S8 Plus has Brilliant 6.2 inch Super AMOLED screen with 1440 x 2960 pixels resolution. This phone comes with superb build quality and innovative design. Samsung Galaxy S8 Plus has two outstanding features Qualcomm MSM8998 Snapdragon 835 chipset with Adreno 540 GPU and Corning Gorilla Glass 5 with always on display and 3D Touch, it’s make this phone very smoother and faster. If we talk on gaming of this phone then we find Samsung Galaxy S8 Plus performed very well.

Samsung Galaxy S8 Plus SM G955U has superb performance, So root Samsung Galaxy S8 Plus G955U because root allows for you to use a maximum of your phone without any restrictions. After root you will install custom apps, custom Rom and custom setting in your Smartphone. But first you read root Advantage and Disadvantage by this post then follow these steps and root your phone.

Must read: How to quick charge Android Phone battery
Preparations of Root:
1. Take a backup of your phone.
2. Your phone battery should charge 80% minimum.
3. Make sure proper power backup of your PC.
4. If your phone bootloader is locked then first unlock the bootloader.

We need download these tools for root Samsung Galaxy S8 Plus SM G955U process. If you have Samsung Galaxy S8 with different variant then you must find your phone variant root guide because this guide is work only for Samsung Galaxy S8 Plus G955U.

Download tools for root Samsung Galaxy S8 Plus SM G955U:

File Name Download link
Samsung Galaxy S8 Plus SM G955U Odin Tool Download
Samsung Galaxy S8 Plus SM G955U USB Driver Download
Samsung Galaxy S8 Plus SM G955U CF-Auto-Root Download

Follow these steps to root Samsung Galaxy S8 Plus SM G955U:

Step 1: Download and install your phone USB driver on your PC. Now download Odin tool and CF-Auto-Root file and extract both zip or rar file in a same folder.

Step 2: Enable Developer Mode and USB debugging mode on your Smartphone by this guide. Look for OEM unlock option and tap the toggle to enable OEM Unlock in the Developer option. If you find Verify Apps Via USB option in the Developer option, then tap the toggle to disable Verify Apps Via USB.

Step 3: Now we will go to Downloading Mode, So Switch off your phone. After then press and hold volume down key with Home key, while pressing these keys, then press and hold power button for a while and release all keys when you see ODIN Mode or Download Mode. see in the image 2.

Power off Samsung Galaxy S8 Plus SM G955U and enter downloading mode

Step 4: You will see a warning massage on your phone screen, see in the image 3. After then press Volume up key to continue or entering Download Mode. Now your phone entered in the Downloading Mode. See in the image 4.

Step 5: Now double click on Odin.exe for run Odin tool and you must check that  “Auto Reboot” and “F.Reset Time“  only these two options are ticked (see in the image 2). Now connect your device to PC via USB cable in Downloading Mode. When you connect your phone to PC then Odin tool detect your phone automatically and show COM port and give massage in massage box. See in the image 3.

Flash cf-auto-root and root Samsung Galaxy S8 Plus SM G955U

Step 6: Now click on AP or PDA button in the Odin tool window and select CF-Auto-Root file (See in images 3 and 4). When you click on the PDA button Odin will ask you CF-Auto-Root file location, So browse it and select your CF-Auto-Root file from Odin folder or where you save this file. Now click on Start button in the Odin tool.

Step 7: Now root process start and it take few second to root Samsung Galaxy S8 Plus SM G955U. When root process will complete, then you will see green box in the Odin. see in the image 5.

Note: In this process your phone automatically reboot and you will get a massage pass in the Odin tool window. Now disconnect your phone and start your phone then go to Application Menu where you will see SuperSU app. If you want check your phone is rooted or not, then use this app.

Must read: How to view free RAM on Android phone

How to unroot Samsung Galaxy S8 Plus SM G955U:

It is must for you to know, how to unroot Samsung Galaxy S8 Plus SM G955U phone. When you feel that you don’t want rooted phone, then you can easily unroot your phone by un-install root app. Here is a simple steps to unroot your device.

Step: First of all open Su App from app menu and tap on Setting tab. Now scroll and find “Full Unroot” option and tap on it to unroot your phone. that’s all.


I hope you like this root Samsung Galaxy S8 Plus G955U guide from which you will be able to easily root Samsung Galaxy S8 Plus G955U without any extra efforts. If feel any problem in this guide, then please use comment box. Thanks to all.


  1. I have att SM G955U and developer options active but I don’t have the “OEM UNLOCK” OPTION. Can I still do it?

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