Last Updated: June 2, 2026
Getting your SM-N986B back to working order is easy when you have the official Samsung Galaxy Note20 Ultra 5G SM-N986B firmware. This page has everything required to fix your phone, including flash files, USB drivers, and step-by-step instructions for FRP removal, hard resets, and system repairs.
Device: Samsung Galaxy Note20 Ultra 5G SM-N986B | Chipset: Exynos 990 (Samsung Exynos 9 Octa 990 S5E9830) | Flash Tool: Odin
Android: Android 13, One UI 5 | File Type: .tar.md5 / ZIP (Contains AP, BL, CP, CSC files for Odin)
⚠ Warning: Flashing erases all data. Back up first.
Samsung Galaxy Note20 Ultra 5G SM-N986B Firmware (Flash File) Drivers, Tools & Guide
Installing the Samsung Galaxy Note20 Ultra 5G SM-N986B firmware using Odin is a simple process when you have the correct files and instructions. I have been there, staring at a Samsung logo that just will not go away. Do not worry, you will find everything you need right here: the proper firmware file for your Samsung Galaxy Note20 Ultra 5G SM-N986B, the matching Odin version, and the exact steps that work.
Before you do anything else, check if a Samsung account is currently signed in on the device. If it is, sign it out. Skipping this step triggers Knox security, and fixing a KG lock later takes much more effort. Samsung firmware files arrive in a .tar.md5 format. Once you extract the main ZIP folder, you need to look for files labeled AP_*, BL_*, CP_*, and CSC_* (or HOME_CSC_*). If these specific files are missing, you have downloaded the wrong package.
Your Samsung Galaxy Note20 Ultra 5G SM-N986B firmware downloads as a compressed ZIP archive. You can extract it using WinRAR or 7-Zip. Once extracted, verify that you see files like AP_*.tar.md5, BL_*.tar.md5, CP_*.tar.md5, and CSC_*.tar.md5 (or HOME_CSC_*.tar.md5). If those files are absent, the package is not meant for your device.
Remember that installing stock firmware completely wipes your phone data. This factory reset effect is exactly what resolves persistent software glitches like FRP locks, severe lag, forgotten passwords, Wi-Fi and Bluetooth drops, battery drain, and soft brick conditions.
Hard Reset Samsung Galaxy Note20 Ultra 5G SM-N986B
A hard reset on the Samsung Galaxy Note20 Ultra 5G SM-N986B is performed by powering off the device and holding Volume Up + Power until the recovery menu appears, then selecting “Wipe Data/Factory Reset”. To do this without a computer, make sure the phone is completely powered down. Press and hold Volume Up + Power at the same time. If you are using an older model with a physical Home button, press Volume Up + Home + Power. Let go of the buttons when the recovery screen shows up. Use the volume keys to highlight “Wipe Data/Factory Reset” and press the Power button to confirm.
Doing a hard reset wipes everything and returns the Samsung Galaxy Note20 Ultra 5G SM-N986B to its original factory settings. This usually fixes common complaints like freezing, app crashes, bootloops, and forgotten screen locks. If the phone still acts up after the reset, move on to the full Odin flash guide below.
Samsung Galaxy Note20 Ultra 5G SM-N986B FRP Bypass
The fastest way to bypass FRP on the Samsung Galaxy Note20 Ultra 5G SM-N986B is to use a free Android apps launcher that grants access to settings during the initial setup wizard. After a factory reset or a fresh firmware flash, Google might lock the phone with Factory Reset Protection (FRP). Do not worry if this happens. You can use our free Android apps launcher to get past the verification screen quickly. This is exactly why I always tell people to remove their Google account before flashing, it saves you from this hurdle entirely.
Why Do We Need Samsung Galaxy Note20 Ultra 5G SM-N986B Firmware?
Flashing the official Samsung Galaxy Note20 Ultra 5G SM-N986B firmware is necessary to fix software problems like bootloops, update failures, and system lag using the Odin flash tool. Samsung phones, including the Samsung Galaxy Note20 Ultra 5G SM-N986B, rely on Odin for flashing, no matter which processor is inside. If you are dealing with a stubborn software issue, installing the official stock ROM usually solves it:
- Unlock a phone that is currently disabled or locked.
- Upgrade to the newest Android version available for your specific model.
- Fix freezing, lag, and continuous startup loops on your SM-N986B Galaxy Note20 Ultra 5G.
- Solve battery drain and over-the-air update failures.
- Return to the original Samsung ROM to keep your warranty intact.
- Fix a phone that will only boot into recovery mode.
- Recover from a KG lock or Knox error caused by a bad or interrupted flash.
You can learn more about stock ROMs and why flashing works.
Choosing the Right Firmware Version
Choosing the right firmware version requires verifying your exact model number, matching the CSC region code, and checking the binary level to prevent flashing errors. Take a minute to confirm you have the correct file before opening Odin. Installing the wrong firmware causes major headaches:
- Identify Your Exact Model Number: Open Settings › About Phone and write down the full model number (for example, SM-N986B). The letter at the end is crucial. U/U1 means USA, W is Canada, N is Korea, and B/F is International/Global. Using the wrong variant causes serious issues.
- Match the CSC (Region): The firmware filename includes a 3-letter region code that must match your phone. You can find your current CSC under Settings › About Phone › Software Information, or look at the Service Provider line in Download Mode. Examples include XAA (US), BTU (UK), INS (India), and SER (Russia).
- Check the Binary Level: Look at your current firmware version string (for example,
XXU9BZDP, the number right after the letters is the binary level). You cannot downgrade past this number. A phone on Binary 9 requires Binary 9 or higher. - Confirm the Build Date: The final 4 characters of the PDA version tell you the build date. The first letter is the year (A=2024, B=2025, C=2026), and the second is the month (A=Jan to L=Dec).
- Verify in Download Mode: Turn off the phone, then hold Volume Down + Power to enter Download Mode. This screen displays your exact model, CSC, and firmware version so you can double-check everything before starting.
Firmware Details for Samsung Galaxy Note20 Ultra 5G SM-N986B
The firmware details for the Samsung Galaxy Note20 Ultra 5G SM-N986B include the model number, Android version, file size, and chipset information. Here is a quick look at the official specifications for this download:
| Firmware Information | Details |
|---|---|
| Device Model | Samsung Galaxy Note20 Ultra 5G SM-N986B |
| Firmware Version | N/A |
| File Size | 6.3 GB to 7.61 GB |
| Android Version | Android 13, One UI 5 |
| Platform | Exynos 990 (Samsung Exynos 9 Octa 990 S5E9830) |
| Release Date | Released 2020, August 21 |
| Region | Global, Africa and Asia |
| File Type | .tar.md5 / ZIP (Contains AP, BL, CP, CSC files for Odin) |
Which Firmware Version Should I Download?
You should download the firmware version that matches your specific situation, such as choosing the latest version for a dead phone or an older version if a recent OTA caused performance issues. I get asked this question all the time, so I created this reference table. Find your scenario and grab the correct file:
| Your Situation | What I Recommend |
|---|---|
| Phone is completely dead or stuck on logo | the latest version, download this one. It is the latest Samsung Galaxy Note20 Ultra 5G SM-N986B firmware available. |
| FRP / Google account lock only | See the FRP bypass guide above, you likely do not need the full firmware for this. |
| Not sure which region/CSC to download | Check Settings › About Phone › Software Information for your current CSC, or enter Download Mode (Volume Down + Power), it shows the CSC on screen. Match the 3-letter code (e.g. XAA, BTU, INS) to the firmware filename. |
| Phone slow after a recent OTA update | Try the next older version, sometimes the latest OTA introduces new bugs and an older build runs better. Make sure the binary level is the same or higher than what your device currently has. |
| IMEI missing after a previous flash | Re-flash the latest version first, then follow the IMEI repair guide. Do not skip the reflash. |
| the latest version failed with a flash error | Try the next older version instead and double-check your AP/BL/CP/CSC file assignments in Odin before assuming the firmware is the problem. |
| Restoring to factory / warranty repair | the latest version, clean state, fresh start. |
To tell which Samsung firmware is newer, look at the last 4 characters of the PDA version string (e.g. S938BXXU9CZDP). The first character is the year (A=2024, B=2025, C=2026), the second is the month (A=Jan, B=Feb… L=Dec, Z=final stable), and the last two are the revision (0-9 then A-Z, where Z is highest). But before comparing dates, always check the binary level: the digit just before the date code (e.g. XXU9CZDP = Binary 9). You cannot downgrade to a lower binary level. If your device is on Binary 9, only flash Binary 9 or higher. Also make sure the 3-letter CSC code in the firmware matches your device region.
Download Samsung Galaxy Note20 Ultra 5G SM-N986B Firmware
You can download the official Samsung Galaxy Note20 Ultra 5G SM-N986B firmware directly from the links provided below. The most recent release is the latest version. After the download finishes, check that the file size matches the details listed earlier. If the size is off, you likely have a corrupted or incomplete download, and flashing a broken file creates more problems than it fixes.
| Software Details | Download Link | Members Link |
|---|---|---|
|
File Name: N986B U2 Android 11 AutoPatch Reset No Lost Network .zip Size: 6.3 GB | Download Link | Download Link2 |
| File Name: SM_N986B_N986BXXS5GVK9_4_File.zip Size: 7.54 GB | Download Link | Download Link2 |
| File Name: SM_N986B_N986BXXU4FVGA_4_File.zip Size: 7.61 GB | Download Link | Download Link2 |
| File Name: SM_N986B_N986BXXU3FVC5_4_File.zip Size: 7.46 GB | Download Link | Download Link2 |
| File Name: SM_N986B_N986BXXU2DUF8_4_File.zip Size: 7.31 GB | Download Link | Download Link2 |
Only download firmware that is fully compatible with your exact device model. See the firmware selection guide above if you are not sure.
- Your model number is a variant of SM-N986B with a different letter suffix. Check About Phone carefully, one letter difference can cause a failed or broken flash.
- Your chipset differs from Exynos 990 (Samsung Exynos 9 Octa 990 S5E9830). Confirm in recovery mode before proceeding.
- You downloaded the file from a source other than this page.
- The file size differs significantly from the sizes listed in the table above, a size mismatch usually means a partial download, which will fail mid-flash.
Prerequisites for Samsung Galaxy Note20 Ultra 5G SM-N986B Firmware
The prerequisites for flashing the Samsung Galaxy Note20 Ultra 5G SM-N986B firmware include backing up data, removing accounts, charging the battery, and installing proper USB drivers. Check off this list before launching Odin for your Samsung Galaxy Note20 Ultra 5G SM-N986B. Two things trip people up the most: forgetting to sign out of a Samsung account (which triggers KG lock) and using a cheap charging cable that drops the connection mid-flash. Always grab a high-quality data cable.
- Back Up IMEI Numbers: Dial *#06# and write down both IMEI numbers now. You will need these if you need to restore your IMEI after flashing.
- Remove Google Accounts: Sign out of all Google accounts to prevent FRP lock after flashing.
- Remove Samsung Accounts: Sign out of all Samsung accounts to avoid KG lock.
- Back Up Your Data: Back up everything, photos, contacts, WhatsApp chats, important files. Flashing wipes the device completely.
- Charge Your Device: At least 50% battery. A device that powers off during a flash is very difficult to recover.
- USB Cable & PC: Use a proper data USB cable, not a charge-only cable, and a Windows computer with available USB ports.
- Install Required Drivers:
How to Install Firmware on Samsung Galaxy Note20 Ultra 5G SM-N986B
To install firmware on the Samsung Galaxy Note20 Ultra 5G SM-N986B, you must use the Odin flash tool to load the AP, BL, CP, and CSC files while the phone is in Download Mode. We will use Odin for this process. A helpful tip: leave “Auto Reboot” and “F. Reset Time” checked in Odin. They work together to give you the cleanest installation. If you need help picking an Odin version, visit our Odin versions page. Older Samsung phones sometimes run better on older Odin builds.
- Download and Extract:
- Download the correct firmware package from the links above.
- Extract the ZIP to a simple folder path, avoid paths with spaces or special characters, as some flash tools have trouble with them.
- Install the Listed Drivers:
- Confirm all drivers listed above are installed and that your PC has been restarted since installation. Skipping the restart is a common reason drivers do not work correctly.
- Load the Firmware File:
- In Odin, click “BL” and select the BL_*.tar.md5 file. Click “AP” and select the AP_*.tar.md5 file. Repeat for “CP” and “CSC”. Use HOME_CSC to keep data, or CSC for a clean flash.
- Connect Your Device:
- Enter Download Mode: Turn off your phone, then hold Volume Down + Power (add Home button on older models) until the warning screen appears. Press Volume Up to confirm and enter Download Mode.
- Connect your phone to your PC via USB. Odin should show “Added..” in the log area, this means your device is detected.
- Start Flashing:
- Click the “Start” button to begin.
- Do not disconnect, move the cable, or touch the device until the process is fully complete. Disconnecting mid-flash is how devices get bricked.
- Wait and Reboot:
- Once flashing finishes successfully, disconnect the device.
- Power on your device. The first boot will take longer than usual, give it up to 8 minutes.
Video Guide for Flashing
What to Expect After Flashing Samsung Galaxy Note20 Ultra 5G SM-N986B Firmware
After flashing the Samsung Galaxy Note20 Ultra 5G SM-N986B firmware, expect a longer first boot time, warm device temperature, and the complete removal of all previously installed apps and data. Many people leave comments thinking they broke their phone when everything is actually fine. Here is what is perfectly normal after a successful Samsung Galaxy Note20 Ultra 5G SM-N986B firmware installation:
- How to know the flash was successful: The Odin software will display “PASS.” in a green box near the top-left. Seeing this means the installation worked perfectly.
- First boot takes 3 to 8 minutes: Do not force the phone to restart. The system is configuring itself from scratch. Pulling the battery or restarting now can cause a bootloop.
- The phone will feel warm during first boot: This is completely normal. The device will cool down once the initial setup finishes.
- All your apps are gone: This is expected behavior. You will need to download them again from the Play Store. If you backed up your data to Google, it will offer to restore your apps during the setup process.
- Dial *#06# immediately after setup: Check your IMEI right away, before inserting a SIM card. If the screen reads “unknown” or “null”, follow the IMEI repair guide below.
- Be careful when re-adding your Google account: If you forgot to remove it before flashing, you might hit an FRP prompt. Enter your account details during the initial setup wizard rather than adding them later through Settings.
- Wi-Fi, Bluetooth, and mobile data: These should function normally right away. If mobile data fails, navigate to Settings › SIM and Network and input your APN details manually, as the flash sometimes wipes carrier settings.
- Stuck in a bootloop after first boot?: Boot into recovery mode and perform a factory reset from there (see the hard reset guide above). This happens occasionally and usually means leftover data from the old system is causing a conflict.
- Samsung Smart Switch: Once the Samsung Galaxy Note20 Ultra 5G SM-N986B firmware is installed, Smart Switch might ask you to install extra updates. Allow it to finish so your phone gets the correct security patches for your region.
Missing IMEI or Corrupt Baseband on Samsung Galaxy Note20 Ultra 5G SM-N986B After Flashing?
A missing IMEI or corrupt baseband on the Samsung Galaxy Note20 Ultra 5G SM-N986B after flashing usually indicates a corrupted EFS partition that requires specific repair tools. If your IMEI disappears after a flash, the EFS partition likely got corrupted. This partition holds your IMEI and network data. Please note that writing a fake IMEI is illegal in most areas, so only restore the original number that came with your phone. Programs like ChimeraTool or BFT can fix this. Check your local regulations first.
Video Guide: How to repair IMEI
Common Issues When Flashing Samsung Galaxy Note20 Ultra 5G SM-N986B
- Odin Shows “FAIL” Instead of “PASS”:
- This almost always means the firmware region or model does not match your phone. Double-check your exact model number in Settings › About Phone. Even one wrong letter will cause a failure.
- Samsung Galaxy Note20 Ultra 5G SM-N986B Not Recognized by Odin:
- Reinstall the Samsung USB drivers and ensure the phone is in Download Mode. Try swapping to a different USB cable, as Odin is very picky about connection quality.
- KG Lock / Knox Triggered After Flashing:
- This occurs when a Samsung account was still logged in, or if unofficial software was installed. Always log out of Samsung accounts before flashing. If KG lock is already active, you generally need a professional tool to remove it.
- Boot Loop After Flashing:
- Boot into recovery mode (Volume Up + Power) and run a factory reset. This wipes out leftover data from the previous system that might be causing the crash.
Frequently Asked Questions
Here are the most common questions about installing the Samsung Galaxy Note20 Ultra 5G SM-N986B firmware.
Q1: Will flashing the Samsung Galaxy Note20 Ultra 5G SM-N986B firmware erase my data?
A: Yes, installing this firmware with Odin completely wipes your phone. It restores the default Android 13, One UI 5 settings, meaning all your apps, photos, and contacts will disappear. Make sure to back up anything important beforehand, because you cannot get that data back after the flash finishes.
Q2: Is this firmware compatible with other Samsung models?
A: No, this firmware is made exclusively for the Samsung Galaxy Note20 Ultra 5G SM-N986B and its Exynos 990 (Samsung Exynos 9 Octa 990 S5E9830) processor. A different variant of the SM-N986B might use entirely different hardware. Installing the wrong file can severely damage your phone. Always verify your exact model in Settings › About Phone.
Q3: Can I downgrade from the latest version to an older firmware version?
A: While possible on certain Exynos devices, I do not suggest downgrading. Rolling back to older software can create security vulnerabilities and app crashes on Android 13, One UI 5. If the newest build is giving you trouble, leave a comment below so we can find a better solution.
Q4: What should I do if I encounter an FRP lock after flashing?
A: You can use our free Android apps launcher. FRP activates on the Samsung Galaxy Note20 Ultra 5G SM-N986B when a Google account remains signed in during a flash. Removing your Google account before starting the flash is the best way to prevent this headache.
Q5: Are custom ROM options available for the Samsung Galaxy Note20 Ultra 5G SM-N986B?
A: This guide focuses entirely on official Samsung stock software. Finding custom ROMs for the Samsung Galaxy Note20 Ultra 5G SM-N986B depends on whether developers offer open-source kernel support for the Exynos 990 (Samsung Exynos 9 Octa 990 S5E9830) chip. You can check our Custom ROMs page or browse the XDA Developers forum for specific threads.
Q6: My Samsung Galaxy Note20 Ultra 5G SM-N986B is not detected by Odin. What should I do?
A: Start by reinstalling the Samsung USB drivers and rebooting your computer. Try moving the cable to a USB 2.0 port instead of USB 3.0, as Samsung phones often connect more reliably to the older ports. Temporarily turn off your antivirus software. If Odin still does not see your phone, drop a comment with the error message and I will help you troubleshoot.
Q7: How do I enter recovery mode on my Samsung Galaxy Note20 Ultra 5G SM-N986B?
A: Turn the phone off entirely, then press and hold Volume Up + Power together until the recovery menu loads. If you have an older Samsung with a Home button, press Volume Up + Home + Power. The recovery screen will show the build number for your Samsung Galaxy Note20 Ultra 5G SM-N986B, which helps confirm your current software version.
Q8: My IMEI shows “unknown” after flashing the Samsung Galaxy Note20 Ultra 5G SM-N986B. Is my phone permanently damaged?
A: No, your phone is not permanently broken, so do not worry. Just follow the IMEI repair guide located in the troubleshooting section above. For Samsung devices, you usually need to fix a corrupted EFS partition. Just make sure not to insert a SIM card until the IMEI is fixed.
Q9: How long does it take to flash Samsung Galaxy Note20 Ultra 5G SM-N986B firmware?
A: The Odin flashing procedure generally takes 3 to 10 minutes, depending on the file size and your USB transfer speed. The first reboot after the flash takes an additional 3 to 8 minutes. Never unplug the phone during either phase. If the Odin progress bar stops moving, wait a few minutes before assuming it failed.
Final Thoughts on Samsung Galaxy Note20 Ultra 5G SM-N986B Firmware
The Samsung Galaxy Note20 Ultra 5G SM-N986B firmware is the official software package required to restore your device to full working condition using Odin. You now have all the tools and steps required to safely install the official Samsung Galaxy Note20 Ultra 5G SM-N986B firmware (the latest version) and get your phone running normally again. If you followed the instructions closely, your device should be operating on a clean, fresh system.
If you ran into a roadblock, like a weird error message or a step that did not work, leave a comment below. Please include the exact error text, where you are in the process, and what you have tried already. I read every comment and will gladly help you figure it out.
If this walkthrough made things easier for you, please share it with others who might need the same help.
Feel free to browse all Samsung firmware downloads for other models.
Disclaimer: Flashing stock firmware is performed at your own risk. Please follow the instructions on this page carefully. I cannot take responsibility for any damage to your device, but I am always here to help if something goes wrong.
