Samsung Galaxy Note 20 Ultra (N986B)(N9860) Root Guide

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Ferz

Hardcore Lv9️⃣
VIP
Member for 7 years
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Here is Patched kernel to root N986B Note20 Ultra (N986B_TH3)

NOTICE :

Before you move further, make clear that rooting device -
- Your warranty will be void
- Some of functions may not work on rooted device, some function may get back with un rooting, some may never.
- All your data on device will be lost
- Flashing custom binaries may brick (Usually soft but can be hard brick too) your device, so follow it on your own risk!

If you are ready with condition, move further -

A.Preparing Root files


You need to patch file to flash using Odin to root device.
1. Download stock firmware for your device (google search will give you many sites to download it) some common are e.g. Sammobile, Samfirmware tool)
you need to download file according your region and model (Dial *#1234# will give you details of existing firmware, download accordingly)

2. Once you finish download, extract files and keep all files on PC. From extracted files a file with name AP_[device_model_sw_ver].tar.md5 copy to your device.

3.Download Latest Magisk Manager and Install to your device

4.Open Magisk Manager - Magisk (first one) - Install - select to "Select and Patch file" - Navigate file you have copied to device (AP_[device_model_sw_ver].tar.md5)

5.Magisk Manager will patch the whole firmware file and store the output to [Internal Storage]/Download/magisk_patched.tar

6.Copy patched file magisk_patched.tar to Your PC

7.Download latest Odin (one is attached to end of this post) and extract to a folder on PC (I recommend on desktop)

Now next step is to modification on device

Unlocking Bootloader

This is a basic step to root device. Go to settings - about phone - Software Information - tap multiple times on "Build number" - This will open developer option.
Now in settings at the end, you will have new option "Developer options" - look for OEM unlocking - Enable it.

(PS : If you don't see this option then you may need to wait up to 7 days or more to appear or may be on some operator you will get it never. Without this option you can not root your device, sorry!)

Once you have enable OEM unlock option, switch off your device and reboot to download mode.
To put device in download mode - Press Volume Up & then Press Volume Down (Keep holding both) and connect device to PC with USB cable
When device start to download mode,long press volume up to unlock the bootloader. This will wipe your data and automatically reboot

Now let finish setup and again enable developer options (as said above), and confirm that the OEM unlocking option exists and grayed out!
If it is not then you can not root device!

Once you see this option and greyed out, you are ready to flash custom binary and root your device

Installation (Flashing) custom binaries

1. Switch off the device and reboot to download mode (As said earlier) and select volume up to continue

2.Download Magisk Patched Kernel and extract on PC

Open Odin as administrator (Odin attached to below this post)

Click AP tab of Odin and navigate to magisk patched file (AP file that you have patched with magisk manager)
Click on UserData tab of Odin and navigate to Patched kernel (You have downloaded above and extracted)


3.From Odin option - uncheck Auto Reboot option

4.Now start flashing and wait till it finish. When you see a PASS sign on Odin, disconnect device.

Now magisk is successfully finished but yet you need to follow instructions below.

Factory reset

After disconnecting device, keep holding Vol down + Side key to exit from download mode.
Here is very important - when you see device reboot As soon as the screen turns off, immediately press Volume Up + Side Key to boot to recovery partition. continue pressing the volume up button until you see the stock recovery screen.

In the stock recovery menu, use volume buttons to navigate through menus, and the power button to select the option. Select Wipe data/factory reset to wipe the data of the device.
Select Reboot system now

The device will automatically reboot for the first time it boots. This is completely normal and done by design.After the device is booted up, do the usual initial setup. You shall see Magisk Manager in your app drawer; if not, Download Magisk Manager and manually install the APK you downloaded and continue to the next step.

Magisk Manager will ask to do additional setups. Let it do its job and the app will automatically reboot your device. (You must needed to connected to internet)

For Snapdragon N9860

Root N9860 TH1 base (Snapdragon)

- Download N9860_TH1_Patched_boot_extract_this_first.zip and extract it.
- Unlock Bootloader as shown in OP and make sure OEM lock turn greyed out
- Reboot to Download mode
- Straightway flash N9860_TH1_Patched_boot.tar.md5 (You have extracted above) with AP tab of Odin
- Reboot to recovery and format data
Reboot to system

In case above method doesn't work then patch AP file of stock firmware and flash that AP file with AP tab and above downloaded and extracted file with USERDATA tab of Odin.

LINK

ODIN3 v3.14.4 - https://forum.xda-developers.com/attachment.php?attachmentid=5083013&d=1597953353

CREDITS to : Dr.Ketan
 

DarthVoda

Savage Lv6️⃣
Member for 6 years
Will this work for a Note 20 5G (not the Ultra model)? I've heard that most Samsung devices cannot be rooted, if sold in the U.S.A. (which is where I bought mine, although I got it unlocked from Samsung website...)

Specs:
Android ver. 11
One UI ver. 3.0
Baseband ver. N981USQU1CTLD
Model # SM-N981U
Build # RP1A.200720.012.N981USQS1CTLB
 
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