If you own a Samsung phone that suddenly shows KG Locked, Prenormal, or Knox Guard Checking, you already know how frustrating it can be—especially when you can’t sign in, can’t activate the device, or can’t use it after a factory reset.
In this guide, you’ll learn how to unlock Knox Guard (KG) offline using SamsungTool, step-by-step. This is a complete tutorial including requirements, supported models, common errors, and best practices to avoid relock.
✅ Goal: Bypass/Unlock Samsung Knox Guard offline safely, fast, and reliably using SamsungTool.
What is Knox Guard (KG) on Samsung?
Samsung Knox Guard (KG) is a Samsung enterprise security and device control system that allows remote device management and locking.
When Knox Guard is active, the device may get restricted after reset, firmware flash, or SIM/network changes. You’ll see messages like:
KG State: Locked
KG State: Prenormal
Knox Guard Checking
Device locked by remote management
Unable to finish Setup Wizard
Why Does KG Lock Happen?
Knox Guard lock usually happens for one of these reasons:
1) Finance / Carrier Installment Lock
Phones sold on contract may get locked when payments are not completed.
2) Enterprise / Company Device (MDM / Knox Manage)
Devices used by companies may remain enrolled in Knox services.
3) Factory Reset After Account/Service Binding
Resetting a phone that is still registered under KG can trigger offline locking.
4) Firmware Flash / Downgrade
Sometimes flashing firmware changes triggers KG check.
Can Knox Guard Be Unlocked Offline?
Yes—in many cases, Knox Guard can be unlocked offline using a stable professional tool like SamsungTool, without needing network activation.
However:
⚠️ Offline unlocking does not mean it can unlock every device.
Some devices still require network checks or cannot be bypassed due to newer protections.
SamsungTool KG Offline Unlock — Key Benefits
SamsungTool is designed to provide:
✅ Offline KG unlocking
✅ Stable support for many Samsung models
✅ Simple one-click process
✅ Works with common Android versions
✅ Professional, technician-grade solution
Requirements Before You Start
Make sure you have the following ready:
✔ Required
Windows PC (Windows 10/11 recommended)
Samsung USB cable
Samsung USB Drivers installed
SamsungTool installed and activated (license)
Stable USB port (avoid USB hubs)
✔ Recommended
Disable antivirus temporarily (some tools get false flags)
Use original cable to prevent disconnects
Battery above 30%
Supported Models (Typical)
SamsungTool KG Offline Unlock often supports devices such as:
Samsung Galaxy A Series: A10–A73, A04/A05, A14, A24, A34, A54
Samsung Galaxy M Series: M12–M54
Samsung Galaxy S Series (selected models depending on patch)
Samsung Tablets (some Knox-based variants)
✅ Tip: Always check the tool’s latest supported list before purchasing.
Step-by-Step: How to Unlock Knox Guard (KG) Offline Using SamsungTool
Step 1 — Install Samsung USB Drivers
Download and install Samsung USB Drivers
Restart PC after installation
Step 2 — Run SamsungTool as Administrator
Right-click SamsungTool
Select Run as Administrator
Login / Activate license (if required)
Step 3 — Put Samsung Device Into Download Mode
Different models use different key combos:
For newer Samsung models (no Home button)
Power off the device
Hold Volume Up + Volume Down
Connect USB cable to PC
Press Volume Up to enter Download Mode
Step 4 — Connect & Detect Device
In SamsungTool:
Wait for COM Port detection
Device should show Connected
If not detected:
Reinstall driver
Change USB port
Try a different cable
Step 5 — Select “KG Removal”
In SamsungTool menu:
Choose Samsung KG / Knox Guard
Select KG Removal
Click Start / Unlock
Step 6 — Wait for Tool to Complete
During process you may see:
“Sending exploit”
“Patching KG”
“Rebooting device”
✅ Do not unplug cable until finished.
Step 7 — Reboot and Complete Setup
After the phone restarts:
Go through Setup Wizard
Avoid internet until setup is complete (optional recommendation)
Insert SIM after initial setup
Important Tips to Avoid KG Re-Lock
After unlocking, use these best practices:
✅ Do not factory reset immediately after unlock
✅ Avoid reflashing firmware unless necessary
✅ Use stable firmware version
✅ Complete setup fully before enabling accounts
✅ Keep device offline during first boot (in some cases)
Common Problems & Fixes
❌ Tool stuck at “Waiting for device”
Fix:
Reboot into Download Mode again
Change USB port/cable
Run tool as admin
❌ “KG State Still Locked”
Fix:
Device may require another method (online unlock / different patch)
Try updated SamsungTool version
Ensure the selected function is “Offline”
❌ Device keeps rebooting / bootloop
Fix:
Flash stock firmware (same binary)
Retry KG unlock after flashing
KG Locked vs Prenormal — What’s the Difference?
KG Locked
Device locked by Knox Guard policy
Cannot complete activation
More strict restrictions
KG Prenormal
Usually after reset
Often caused by waiting period / anti-theft checks
Might still allow boot but blocks some actions (e.g., OEM unlock)
Is KG Offline Unlock Safe?
If performed correctly:
✅ Yes, it is stable and safe.
However:
Use trusted tool versions
Don’t interrupt during operation
Don’t use random scripts from unknown sources
FAQ (People Also Ask)
1. Can I bypass Knox Guard without PC?
Usually no. Most reliable methods require PC tools.
2. Is Knox Guard the same as FRP?
No. FRP is Google Lock, while KG is Samsung Knox Guard / enterprise lock.
3. Can KG unlock work after firmware update?
Depends on security patch. New patches may block old methods.
4. Does SamsungTool support all Samsung devices?
No. Support varies by model, binary, Android version, and patch level.
Conclusion
Unlocking Samsung Knox Guard offline is possible on many devices with SamsungTool, and it’s one of the best options when the phone is stuck on KG activation and you need a fast solution.
If you want the most stable result:
use correct drivers
use Download Mode connection
avoid reset after unlock
✅ Need KG Offline Unlock Tool?
If you need SamsungTool license or remote technician support:
📩 Contact: Telegram: @samsungtool_bot