Last Updated: June 2, 2026
When the SM-N986U Galaxy Note20 Ultra 5G starts giving trouble, installing the official Samsung Galaxy Note20 Ultra 5G SM-N986U firmware is the most reliable solution. This page contains the exact flash files, USB drivers, and step-by-step instructions required to handle FRP removal, hard resets, and full system repairs.
Device: Samsung Galaxy Note20 Ultra 5G SM-N986U | Chipset: Qualcomm Snapdragon 865+ (SM8250-AB) | Flash Tool: Odin
Android: Android 10, upgradable to 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-N986U Firmware (Flash File) Drivers, Tools & Guide
Flashing this phone with Odin is a simple process when you have the correct files and steps. I have organized everything you need right here: the exact software build for the Samsung Galaxy Note20 Ultra 5G SM-N986U, the proper Odin version, and the methods that actually work.
Before you begin, sign out of any active Samsung accounts. Skipping this step will trigger Knox security, and fixing a KG lock later is a major hassle. The official Samsung Galaxy Note20 Ultra 5G SM-N986U firmware downloads as a ZIP archive containing .tar.md5 files. Once you extract it, look for AP_*, BL_*, CP_*, and CSC_* (or HOME_CSC_*). If these files are missing, the package is incorrect.
You will need WinRAR or 7-Zip to open the archive. After extraction, verify that files like AP_*.tar.md5 and BL_*.tar.md5 are present. Keep in mind that this process intentionally wipes all data to fix software problems like FRP locks, system lag, forgotten passwords, bootloops, and connectivity issues.
Hard Reset Samsung Galaxy Note20 Ultra 5G SM-N986U
You can factory reset the Samsung Galaxy Note20 Ultra 5G SM-N986U without a computer by using the hardware button combination to access the recovery menu. Power down the phone completely, then press and hold Volume Up + Power together. When the recovery screen appears, use the volume keys to highlight “Wipe Data/Factory Reset” and press Power to confirm.
A factory reset wipes the phone completely and returns the Samsung Galaxy Note20 Ultra 5G SM-N986U to its original factory state. This solves most common glitches, including freezing, app crashes, and slow response. If the problem remains after the reset, a full Odin flash is the next step.
Samsung Galaxy Note20 Ultra 5G SM-N986U FRP Bypass
The most effective method to bypass FRP on the Samsung Galaxy Note20 Ultra 5G SM-N986U involves using a free Android apps launcher to access settings during the initial setup. After a factory reset or flash, a Google account lock might appear. Our free Android apps launcher provides a quick workaround. This is exactly why you should always remove your Google account before flashing.
Why Do We Need Samsung Galaxy Note20 Ultra 5G SM-N986U Firmware?
Flashing the official Samsung Galaxy Note20 Ultra 5G SM-N986U firmware is necessary to resolve severe software issues like bootloops, system crashes, and security locks. Samsung phones are flashed via Odin regardless of the internal processor.
- Remove active screen locks or disable a frozen device.
- Upgrade the operating system to the newest supported Android build.
- Eliminate startup loops, system lag, and random freezing on your SM-N986U Galaxy Note20 Ultra 5G.
- Fix failed over-the-air updates and rapid battery drain.
- Return to the original factory software to maintain warranty status.
- Recover a phone that only boots into the recovery menu.
- Resolve KG lock or Knox errors caused by a bad or interrupted flash.
Learn more about stock ROMs and why flashing works.
Choosing the Right Firmware Version
Selecting the correct software build for your phone requires verifying the model number, region code, and binary level before downloading. Installing the wrong file is a critical error:
- Identify Your Exact Model Number: Open Settings › About Phone and write down the full model name (e.g. SM-N986U). The letter at the end is crucial, U/U1 means USA, W means Canada, N means Korea, and B/F means International. Using a file meant for a different variant will cause major errors.
- Match the CSC (Region): The firmware filename includes a 3-letter region code that must match your phone. Find your current CSC under Settings › About Phone › Software Information, or check the Service Provider line in Download Mode. Common codes include XAA (US), BTU (UK), INS (India), and SER (Russia).
- Check the Binary Level: Look at your current software version string (e.g.
XXU9BZDP, the number after the letters is the binary level). You cannot downgrade past this number. If your phone runs Binary 9, you must flash Binary 9 or higher. - Confirm the Build Date: The final 4 characters of the PDA version indicate the build date, the first character is the year (A=2024, B=2025, C=2026), and the second is the month (A=Jan through L=Dec).
- Verify in Download Mode: Turn the phone off, then hold Volume Down + Power to reach Download Mode. This screen lists your exact model, CSC, and current software version, use it to double-check everything before proceeding.
Firmware Details for Samsung Galaxy Note20 Ultra 5G SM-N986U
The official firmware specifications for the Samsung Galaxy Note20 Ultra 5G SM-N986U include Android 13, One UI 5, and the Qualcomm Snapdragon 865+ processor.
| Firmware Information | Details |
|---|---|
| Device Model | Samsung Galaxy Note20 Ultra 5G SM-N986U |
| Firmware Version | SQU1ATGM |
| File Size | 5.9 GB |
| Android Version | Android 10, upgradable to Android 13, One UI 5 |
| Platform | Qualcomm Snapdragon 865+ (SM8250-AB) |
| 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 SQU1ATGM for a completely dead phone or an older build if the latest OTA causes lag. Find your scenario in the table below:
| Your Situation | What I Recommend |
|---|---|
| Phone is completely dead or stuck on logo | SQU1ATGM, download this one. It is the latest Samsung Galaxy Note20 Ultra 5G SM-N986U 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 SQU1ATGM first, then follow the IMEI repair guide. Do not skip the reflash. |
| SQU1ATGM 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 | SQU1ATGM, 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-N986U Firmware
You can download the official Samsung Galaxy Note20 Ultra 5G SM-N986U firmware directly from the links provided in the table below. The newest release is SQU1ATGM. Always check that the downloaded file size matches the table to ensure the file is not corrupted.
| Software Details | Download Link | Members Link |
|---|---|---|
|
File Name: N986USQU1ATGM_N986UOYN1ATGM_CCT_5file.zip Size: 5.9 GB | Download Link | Download Link2 |
Only download software 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-N986U with a different letter suffix. Check About Phone carefully, one letter difference can cause a failed or broken flash.
- Your chipset differs from Qualcomm Snapdragon 865+ (SM8250-AB). 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-N986U Firmware
Before flashing the Samsung Galaxy Note20 Ultra 5G SM-N986U firmware, you must back up your data, remove all accounts, and install the correct USB drivers. Two frequent culprits for flashing errors are unremoved Samsung accounts and low-quality USB cables. Always use an original 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-N986U
Installing the software on the Samsung Galaxy Note20 Ultra 5G SM-N986U requires Odin, a Windows PC, and a proper data USB cable. We are using Odin for this. Keep “Auto Reboot” and “F. Reset Time” checked in Odin for the cleanest result. If you need a different build, check our Odin versions page.
- 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-N986U Firmware
After flashing the Samsung Galaxy Note20 Ultra 5G SM-N986U firmware, expect a longer initial boot time and a completely clean operating system. Many people panic during this stage, but here is what is completely normal:
- How to know the flash was successful: Odin will display “PASS.” in green text in the top-left corner. Seeing this means the process finished perfectly.
- First boot takes 3 to 8 minutes, do not force the phone to restart. The system is configuring itself for the first time. Interrupting this setup causes bootloops.
- The phone will feel warm during first boot, this is expected behavior. It will cool down after the initial setup finishes.
- All your apps are gone, this happens by design. You must reinstall them via the Play Store. A previous Google backup might offer to restore them automatically.
- Dial *#06# immediately after setup to verify your IMEI. Do this before inserting a SIM card. If the screen reads “unknown” or “null”, read the IMEI repair guide below immediately.
- Be careful when re-adding your Google account, failing to remove it beforehand might trigger an FRP prompt. Add it directly through the setup wizard rather than the settings menu.
- Wi-Fi, Bluetooth, and mobile data should function right away. If mobile data fails, navigate to Settings › SIM and Network and input your APN manually, the flash occasionally wipes carrier settings.
- Stuck in a bootloop after first boot? Boot into recovery and perform a factory reset, see the hard reset guide above. This happens occasionally due to leftover data conflicts and does not mean the software is bad.
- Samsung Smart Switch: After installing the Samsung Galaxy Note20 Ultra 5G SM-N986U firmware, Smart Switch might suggest extra updates. Allow it to finish, this guarantees your phone has the newest regional security patches.
Missing IMEI or Corrupt Baseband on Samsung Galaxy Note20 Ultra 5G SM-N986U After Flashing?
A missing IMEI or corrupt baseband after flashing usually indicates a wiped or damaged EFS partition. This partition holds your IMEI and network data. Restoring an IMEI that does not belong to the device is illegal. Tools like ChimeraTool or BFT can restore your original numbers. Check your local laws before proceeding.
Video Guide: How to repair IMEI
Common Issues When Flashing Samsung Galaxy Note20 Ultra 5G SM-N986U
- Odin Shows “FAIL” Instead of “PASS”:
- This typically means the software region or model does not match the phone. Verify your exact model number in Settings › About Phone before selecting files. Even a single letter difference in the model code matters.
- Samsung Galaxy Note20 Ultra 5G SM-N986U Not Recognized by Odin:
- Reinstall the Samsung USB drivers. Ensure the phone is actually in Download Mode. Try a different USB cable, Odin can be sensitive to cable quality.
- KG Lock / Knox Triggered After Flashing:
- This occurs when a Samsung account remained active prior to flashing, or if unofficial software was applied. Always sign out of Samsung accounts beforehand. If KG lock is already active, a professional unlocking tool is generally needed.
- Boot Loop After Flashing:
- Enter recovery mode (Volume Up + Power) and perform a factory reset. This clears any leftover data from the previous firmware that may be causing the conflict.
Frequently Asked Questions
Q1: Will flashing the Samsung Galaxy Note20 Ultra 5G SM-N986U firmware erase my data?
A: Yes, running this software through Odin returns the phone to its factory defaults, including the base Android 10, upgradable to Android 13, One UI 5 settings. Every app, photo, and contact will disappear. Save your files beforehand, as recovery is impossible after the fact.
Q2: Is this firmware compatible with other Samsung models?
A: No, this package is strictly for the Samsung Galaxy Note20 Ultra 5G SM-N986U utilizing the Qualcomm Snapdragon 865+ (SM8250-AB) processor. Even a slightly different variant of SM-N986U might use different internal hardware. Installing the wrong files can severely damage the phone. Verify your exact model in the settings menu.
Q3: Can I downgrade from SQU1ATGM to an older firmware version?
A: While sometimes technically possible on Qualcomm devices, rolling back is not advisable. It can create security vulnerabilities and break app functionality on Android 10, upgradable to Android 13, One UI 5. If SQU1ATGM is giving you errors, leave a comment below so we can find a safer solution.
Q4: What should I do if I encounter an FRP lock after flashing?
A: Try our free Android apps launcher. This lock triggers on the Samsung Galaxy Note20 Ultra 5G SM-N986U when a Google account remains active prior to flashing. Removing the account beforehand prevents this entirely.
Q5: Are custom ROM options available for the Samsung Galaxy Note20 Ultra 5G SM-N986U?
A: This article focuses entirely on official stock software. Whether custom ROMs exist for the Samsung Galaxy Note20 Ultra 5G SM-N986U depends on the open-source support for the Qualcomm Snapdragon 865+ (SM8250-AB) chipset. Visit our Custom ROMs page or the XDA Developers forum to check for specific threads.
Q6: My Samsung Galaxy Note20 Ultra 5G SM-N986U is not detected by Odin. What should I do?
A: Check your drivers first. Reinstall the Samsung USB drivers, reboot your computer, and test again. Moving to a USB 2.0 port often helps, as Samsung phones occasionally struggle with USB 3.0. Temporarily disable your antivirus software. If it still fails, drop a comment with the error message.
Q7: How do I enter recovery mode on my Samsung Galaxy Note20 Ultra 5G SM-N986U?
A: Shut the phone down entirely, then press and hold Volume Up + Power until the menu loads. Older Samsung phones with a physical Home button require Volume Up + Home + Power. The recovery screen displays the current build number for your Samsung Galaxy Note20 Ultra 5G SM-N986U, which helps verify your software version.
Q8: My IMEI shows “unknown” after flashing the Samsung Galaxy Note20 Ultra 5G SM-N986U. Is my phone permanently damaged?
A: No, the device is not ruined, and the issue is repairable. Read the IMEI repair guide located in the troubleshooting section. For Samsung phones, an EFS partition wipe is the usual suspect. Do not put a SIM card in until the numbers are restored.
Q9: How long does it take to flash Samsung Galaxy Note20 Ultra 5G SM-N986U firmware?
A: The Odin flashing procedure generally requires 3 to 10 minutes, depending on the file size and your USB connection. The first startup afterward takes an additional 3 to 8 minutes. Never unplug the phone during either phase. If the Odin progress bar stalls, wait a few minutes before assuming it failed.
Final Thoughts on Samsung Galaxy Note20 Ultra 5G SM-N986U Firmware
Following these instructions will successfully restore your device using the official Samsung Galaxy Note20 Ultra 5G SM-N986U firmware (SQU1ATGM). If you followed the steps correctly, your phone should now operate on a fresh, clean system.
If you hit a specific error or a step fails, leave a comment below with the details. Include the exact error message, the step you are currently on, and the steps you have already attempted. I read every comment and will help you work through it.
Share this guide if it helped you get your phone working again, it is the best way to assist someone else facing the same problem.
Browse all Samsung firmware downloads for more devices.
Disclaimer: Flashing stock firmware is performed at your own risk. Follow the instructions on this page carefully. I cannot be held responsible for any damage to your device, but I will always try to help if something goes wrong.
