ZeroKnox Removal Tool is one of the most capable free Samsung repair utilities available right now and version 2.4 makes it even more relevant by adding Android 16 FRP support at a time when most free tools are still struggling to keep up with 2025 and 2026 security patches. If you’re dealing with a Samsung device stuck on Google account verification, a Knox Guard lock from a finance app, or Knox security restrictions you can’t get past through normal means, this guide covers everything you need to know.
All download links are at the bottom of this page.⬇
Disclaimer
The tools and methods shared on this page are provided for educational purposes only. Please make sure you’re using them on a device that you own or have permission to work on.
Bypassing FRP or removing a Google account from a device that isn’t yours can be illegal and may lead to serious consequences. Always follow Google’s policies and your device manufacturer’s guidelines when performing any kind of modification.
Rise ROM does not encourage or support any misuse of these tools. Use them responsibly.
What is ZeroKnox Removal Tool
ZeroKnox Removal Tool is a free Windows based utility built specifically for Samsung smartphones and tablets. It handles three things that Samsung repair technicians deal with constantly: FRP removal, Knox Guard lock removal and Knox security bypass. What makes it stand out from most other free Samsung tools is that it does all three from a single organized interface without requiring credits, a dongle or server authentication.
The tool works primarily through MTP mode and ADB mode. MTP mode handles most of the FRP and Knox operations without needing USB debugging already enabled on the device, which is important since you obviously can’t enable it manually when the device is locked. ADB mode is used for deeper operations once the tool has successfully enabled USB debugging through the diagnostic code.
Something worth being upfront about: there is no official website for ZeroKnox Removal Tool. The developer zerosecurity distributes it through various community channels and mirror sites. This means you need to be careful about where you download it from since modified versions with bundled malware do exist on some sites. The download link at the bottom of this page is one we have verified and hosted on our own server so you’re not taking that risk.
The tool is completely free for standard operations. No account registration, no credits, no paid tier for basic FRP and Knox removal. It runs on Windows 7, 8, 10 and 11 in both 32 bit and 64 bit.
What’s New in Version 2.4
Version 2.4 was released in late December 2025 and it’s the most significant update the tool has received in a while. Here’s what actually changed:
Android 16 FRP Reset Added This is the headline feature and it’s a genuine addition not just a marketing claim. Samsung devices running Android 16 with 2025 and 2026 security patches can now have FRP removed through ZeroKnox 2.4. This puts it ahead of a lot of competing free tools that are still limited to Android 13 and 14.
Bug Fixes and Stability Improvements Several issues from version 2.2 and earlier were addressed. Device detection was inconsistent on certain Samsung A series models and that has been largely resolved in 2.4. The ADB connection process is also more stable across different Windows configurations.
Better Support for 2025 and 2026 Security Patches Beyond Android 16 specifically, the tool improved its handling of newer security patch levels across Android 13, 14 and 15 devices. Some models that were failing at the ADB enable step in older versions work more reliably in 2.4.
One Important Clarification About Versions
If you’ve been searching for ZeroKnox you’ve probably seen version numbers like 2.5 or 2.7 on various download sites. These are unofficial builds distributed by third parties and are not released by the original developer. The confirmed stable latest version from the developer is 2.4. Anything showing a higher version number is either mislabeled or a modified build. Stick to 2.4.
Key Features
Here’s a complete breakdown of what ZeroKnox Removal Tool 2.4 can actually do:
FRP Removal The tool resets Factory Reset Protection on supported Samsung devices through both MTP mode and ADB mode. It offers three Enable ADB methods (old method, Method 2, and June 2023 method) because different device models and firmware versions respond to different approaches. Having three options dramatically increases your chances of success compared to tools that only offer one method.
Knox Guard Removal Knox Guard is a separate lock from FRP that finance apps, carriers and enterprise management systems use to lock down Samsung devices when payments are missed or when a device is reported. ZeroKnox 2.4 includes four KG removal methods (Method 1 through Method 4) giving you multiple approaches depending on the device condition and how the KG lock was applied.
Knox Service Disable Beyond KG lock specifically, the tool can disable Samsung Knox service entirely on supported models. This removes enterprise mobility management restrictions and MDM controls that would otherwise prevent you from fully using the device.
CSC Change You can change the Country Specific Code on supported Samsung devices. This is useful when a device was purchased in one region and needs to be configured for a different region or carrier. CSC determines which apps come preloaded and certain network settings.
Smart Firmware Flasher Version 2.4 includes a firmware flashing module that supports Smart ZIP firmware files as well as manual flashing of individual partitions including BL, AP, CP, CSC, Userdata and PIT files. This is useful when FRP or Knox removal alone isn’t enough and the device also needs a clean firmware install.
ADB Activation via Test Mode The tool activates ADB on locked Samsung devices by guiding you through the diagnostic test mode using the code *#0#. Once test mode is triggered the tool takes over and enables USB debugging automatically without you needing to navigate through developer settings.
Download Mode Access One click reboot into Download Mode directly from the tool interface. Useful when you need to flash firmware after completing a repair operation without manually triggering the boot mode combination.
App Manager You can enable, disable, uninstall and stop both system and user apps on Samsung devices once ADB is active. This is helpful for removing persistent bloatware or disabling apps that prevent normal device use after bypass.
Factory Reset Full factory reset capability from within the tool for situations where you need a clean wipe after completing FRP or Knox operations.
Supported Devices
ZeroKnox Removal Tool works strongest on Samsung A series, M series and selected S series devices, particularly budget and mid range models from 2022 through 2026. Here’s a general breakdown:
| Series | Android Version | FRP Support | KG Removal | Notes |
|---|---|---|---|---|
| Galaxy A Series (2022 to 2024) | Android 12 to 15 | Yes | Yes | Best overall support |
| Galaxy A Series (2025 to 2026) | Android 15 to 16 | Yes | Some models | V2.4 added Android 16 |
| Galaxy M Series | Android 12 to 14 | Yes | Some models | Solid support |
| Galaxy F Series | Android 12 to 14 | Yes | Limited | Varies by model |
| Galaxy S Series (budget variants) | Android 13 to 15 | Some models | Limited | Mid range only |
| Galaxy J Series (older) | Android 8 to 11 | Yes | No | Older models work well |
A few things worth being honest about here. Success on high end Samsung flagships like the S23, S24 and S25 series is inconsistent. These devices have stricter security implementations and very recent patch levels that even version 2.4 struggles with on some variants. If you’re working on a flagship Samsung with a 2025 or 2026 security patch and ZeroKnox doesn’t work, SamFw Tool or a paid solution may be the more reliable route for that specific device.
The rule of thumb is: the newer the device and the more recent the security patch, the lower the guaranteed success rate. Version 2.4 covers Android 8 through 16 officially but real world results on Android 16 devices depend heavily on the exact model and firmware build.
What You Need Before Starting
Here’s everything you need before downloading or running anything:
A Windows PC running Windows 7, 8, 10 or 11. Both 32 bit and 64 bit are supported. Windows 10 or 11 is recommended for the best driver compatibility.
Samsung USB drivers installed on your PC. Without these the tool simply cannot communicate with the device. Download them from our drivers page. If you’ve used SamFw Tool or other Samsung repair tools before these may already be installed.
A USB data cable that supports data transfer. Not a charging only cable. This is the most common reason the tool fails to detect a device and it’s almost always the first thing to check when you’re having detection issues.
Wi-Fi connected on the locked device. Some FRP removal methods require the device to be connected to Wi-Fi during the process. Make sure your network is available and you have the password ready before starting.
WinRAR or 7-Zip on your PC. The tool comes as a ZIP archive and you’ll need one of these to extract it properly. Both are free.
Antivirus temporarily disabled during installation. Because the tool communicates with device firmware at a low level and has no official distribution site, some antivirus programs will flag the executable as suspicious. This is a false positive but it can prevent the tool from running if your antivirus deletes it during extraction. Disable your antivirus temporarily, extract and run the tool, then re-enable it afterward.
Your device charged to at least 30%. Knox Guard removal and firmware operations involve multiple restarts. A device that dies halfway through can leave things in an incomplete state that’s harder to recover from.
Writing sections 8 through 14 now, taking my time with each one:
Download ZeroKnox Removal Tool
The latest stable version is ZeroKnox Removal 2.4 released in late December 2025. File size is between 60 and 105 MB depending on the build. It comes as a ZIP archive.
Before downloading please read this. A lot of sites distribute versions labeled 2.5, 2.6 or 2.7 but these are unofficial third party builds not released by the original developer. Some of them are clean copies of 2.4 with just the version number changed. Others have been modified. The confirmed official latest version is 2.4 and that’s what the link below points to.
Also watch out for fake download buttons on mirror sites. These sites typically surround the real download link with large advertisement buttons that look identical to the actual download. Scroll carefully and only click a link that is clearly labeled as the ZeroKnox download.
| Version | Release Date | Download |
|---|---|---|
| ZeroKnox Removal 2.4 (Latest) | December 2025 | Download |
| Previous Versions | Various | Download |
How to Install and Set Up
Installing ZeroKnox is quick. There’s no traditional installer here, it’s a portable application that you extract and run directly.
Step 1: Extract the ZIP file Once the download finishes locate the ZIP file in your downloads folder. Right click it and select Extract Here using WinRAR or 7-Zip. Extract it to a folder on your desktop or C drive. Never run the tool directly from inside the ZIP archive. Always extract first.
Step 2: Disable antivirus before running Before you open the extracted folder make sure your antivirus is disabled. Some programs will delete the executable the moment you try to open it even though it’s clean. Add the extracted folder to your antivirus exclusion list if you prefer not to disable it completely.
Step 3: Run as administrator Open the extracted folder and find ZeroKnox Removal.exe. Right click it and select Run as Administrator. This is not optional. Running without admin rights causes device detection failures that look like driver problems but aren’t.
Step 4: Install Samsung drivers When the tool opens you’ll see a Driver Install button in the interface. Click it and let the tool install the Samsung USB drivers automatically. If you already have Samsung drivers installed from a previous tool you can skip this step. If you’re not sure just install them again, it won’t cause any problems.
Step 5: Connect your device Once the drivers are installed you’re ready to connect your Samsung device and start working. The tool will detect it automatically once it’s plugged in via USB.
That’s the full setup. No account login, no activation, no credits. You’re ready to use it.
Step by Step FRP Bypass Guide
This covers the most common use case which is FRP removal on a Samsung device stuck on the Google account verification screen. The process uses MTP mode and three different Enable ADB methods. Understanding why there are three methods matters: different Samsung models and firmware versions respond differently to each approach. If the first one doesn’t work on your device, try the next one before giving up.
Before you start: Make sure your device is on the FRP lock screen during setup, connected to Wi-Fi, and plugged into your PC via USB. The tool should be open and running as administrator.
Step 1: Connect the device Plug your Samsung into the PC via USB data cable. ZeroKnox should detect it within a few seconds and display the model name in the interface. If it doesn’t detect the device within 30 seconds try a different USB port or cable.
Step 2: Enter test mode On the locked Samsung device tap Emergency Call. On the dialer type *#0#. This opens Samsung’s hardware test mode screen. If *#0# doesn’t work try #0# without the asterisk. Once test mode is open do not tap anything on the test screen, just leave it open.
Step 3: Enable ADB using one of the three methods
Try them in this order ➡
Method 1 (June 2023): Click Enable ADB June 2023 in the tool. This is the most effective method on devices with 2023 and newer firmware. Wait for the tool to confirm ADB is enabled before moving to the next step.
Method 2 (Second Method): If Method 1 doesn’t work click Enable ADB 2 Method. This targets a slightly different entry point and works on certain Samsung models where the June 2023 method fails.
Method 3 (Old Method): If both above fail click Enable ADB Old Method. This is the original approach that works on older Samsung firmware. Less effective on 2024 and 2025 patches but still works on many A and M series devices with earlier firmware.
Once any of these three successfully enables ADB the tool will show a confirmation message. If none of the three work your device may have a patch level that version 2.4 doesn’t support yet.
Step 4: Reset FRP Once ADB is enabled click Reset FRP ADB Mode. The tool pushes the bypass commands to the device. You’ll see progress in the log area at the bottom of the screen. This usually takes 1 to 3 minutes. Don’t disconnect the cable during this process.
Step 5: Restart When the tool shows the success message disconnect the device and restart it by holding the power button until it fully shuts down. Wait 10 seconds and power it back on manually. Don’t let it auto restart. Go through the normal setup process and the Google verification screen should be gone.
Knox Guard Removal Guide
Knox Guard is a different problem from FRP and it’s worth covering separately because people often confuse the two. FRP is Google’s account lock after a factory reset. Knox Guard is Samsung’s own MDM based lock that finance companies, carriers and enterprise systems use to lock a device remotely when a payment is missed or the device is flagged.
A Knox Guard locked device usually shows a message on the screen saying the device is locked and providing a contact number or portal to resolve it through the locking organization. If you see that screen you’re dealing with KG lock, not FRP.
ZeroKnox 2.4 includes four KG removal methods. The reason there are four is the same reason there are three ADB methods for FRP: different devices and different KG implementations respond to different approaches. Work through them in order.
Step 1: Connect the device Connect the KG locked Samsung to your PC via USB. Make sure ZeroKnox is open and running as administrator. The tool should detect the device automatically.
Step 2: Navigate to KG removal In the ZeroKnox interface find the Knox Guard or KG Lock section. You’ll see four buttons labeled Remove KG Method 1 through Method 4.
Step 3: Try Method 1 first Click Remove KG Method 1 and wait. The tool will attempt to communicate with the device and push the KG removal commands. This works on a good portion of supported Samsung models.
Step 4: Move through methods if needed If Method 1 shows an error or doesn’t complete successfully, try Method 2, then Method 3, then Method 4 in that order. Each method targets a slightly different vulnerability in the Knox Guard implementation.
Step 5: Restart and verify Once a method completes successfully the device will restart automatically. Power it back on and the Knox Guard lock screen should be gone. You’ll likely still see an FRP screen after KG removal if the device was also factory reset. If that happens go back to the FRP bypass section above and complete that process too.
One honest note here: Knox Guard removal success depends heavily on how the KG lock was applied and by which system. Carrier applied KG locks on recent flagship Samsung devices with the latest patches are the hardest to remove. Budget and mid range Samsung devices from 2022 through 2024 have the highest success rate with ZeroKnox 2.4.
Errors and Fixes
Device not detected after connecting Work through these in order. Is the cable a data cable and not just a charging cable. Are Samsung USB drivers installed properly and showing in Device Manager without yellow warning icons. Is ZeroKnox running as administrator. Are you using a USB 2.0 port rather than 3.0. Try each one before assuming the tool has a problem.
*Test mode won’t open with #0# Some Samsung models require a slightly different code or approach. Try #0# without the asterisk first. If that doesn’t work try #0# with an asterisk at the end. On certain models you need to dial the code quickly without pausing between characters. If none of these work your device may block diagnostic mode entirely on the FRP screen in which case you’ll need a different bypass method.
All three Enable ADB methods fail This usually means your device has a security patch level that version 2.4 doesn’t currently support. It can also happen if the device isn’t properly connected in MTP mode. Go to the USB connection settings on the device if accessible and make sure it’s set to MTP rather than charging only. If the patch is too new check our FRP tools page for alternatives that may cover newer patches.
FRP reset completes but verification screen still appears Do a proper power cycle. Hold the power button until the device shuts down completely, wait 10 full seconds, then power it back on manually. Do not let it auto restart from the tool. If the screen still appears after a clean boot try running the Reset FRP step a second time. Occasionally the first attempt completes the process but a second restart is needed for the changes to take full effect.
Knox Guard removal fails on all four methods The KG lock on your device may have been applied through a channel that version 2.4 doesn’t support. High end Samsung flagships with very recent KG locks from finance companies are the most likely candidates here. A firmware flash combined with KG removal sometimes works where KG removal alone fails. Check our firmware page for the correct Samsung firmware for your model.
Tool opens but crashes immediately Make sure you extracted the ZIP before running the executable. Running directly from inside the archive causes immediate crashes on most systems. Also check that Microsoft Visual C++ 2015 or above is installed on your PC. Download it free from Microsoft’s official site if it’s missing.
Antivirus keeps deleting the tool after extraction Add the extracted ZeroKnox folder to your antivirus exclusion list before extracting. Some antivirus programs scan and delete flagged files during extraction itself, not just when you try to run them. Setting the exclusion before extracting solves this.
FAQ
Is ZeroKnox Removal Tool completely free?
Yes. Standard FRP removal and Knox Guard removal operations are completely free with no credits, no account registration and no paid tier required. You download, extract and use it without spending anything.
Does ZeroKnox work on Samsung Android 16 devices?
Version 2.4 added Android 16 FRP reset support specifically. Whether it works on your particular Android 16 device depends on the exact model and security patch level. Devices with patches from late 2025 and early 2026 have the highest success rate. Very recent 2026 patches on flagship models may still be outside what the tool can handle.
What is the difference between FRP and Knox Guard lock?
FRP is Google’s protection that activates after a factory reset and requires the previously linked Google account to be verified. Knox Guard is Samsung’s MDM based lock applied by finance companies, carriers or enterprise systems that locks the device remotely. They are separate locks and sometimes a device has both. ZeroKnox handles both but you need to address KG lock first before working on FRP.
Is it safe to download ZeroKnox from third party sites?
There is no official distribution site for ZeroKnox which does create a genuine risk. Modified versions with malware bundled inside do exist on some sites. The link on this page is hosted on our own server and is the clean version 2.4 build. Avoid downloading from random Telegram groups or sites you don’t recognize.
Why are there three Enable ADB methods instead of just one?
Different Samsung models and firmware versions respond differently to how ADB is enabled from test mode. What works on a Galaxy A14 may not work on a Galaxy A54. Having three methods gives you a much higher overall success rate since you can try each one until you find the approach your specific device responds to.
Will using ZeroKnox void my Samsung warranty?
FRP removal itself doesn’t modify your firmware so it generally doesn’t trip Knox warranty flags. Knox Guard removal and Knox service disable operations do interact with Samsung’s security layer more directly. If warranty is a concern the safest option is always contacting Samsung support or the original seller first before attempting any third party tool.
Does ZeroKnox work on non-Samsung devices?
Primarily no. The tool is built specifically for Samsung. Some of the general ADB and FRP functions may work in a limited way on other Android brands in certain situations but there’s no official non-Samsung support. For other brands check our FRP tools page.
Related Tools
If ZeroKnox Removal Tool didn’t solve your specific problem or you’re working on a device it doesn’t cover, here are some other resources on Rise ROM worth checking out.
FRP Bypass Tools has a full collection of free tools and APK based methods for Samsung and other Android brands where ZeroKnox isn’t an option.
OTA Firmware is where to go if your Samsung device needs a firmware flash alongside the FRP or Knox removal, or if the device needs a clean firmware install to recover from a deeper issue.
USB Drivers has the Samsung USB drivers and other chipset drivers you need for ZeroKnox and other repair tools to detect your device properly.