Device Info

• Model: Samsung Galaxy A25 5G (SM-A256E)
• Network: 5G supported
• Bit Version: U7
• Android: Version 14
• Chipset: Exynos
• Patch Level: January 1, 2025
• KG Status: ACTIVE (Locked)

What is KG Lock on Samsung Devices?

KG (Knox Guard) Lock is a security feature from Samsung used to lock a device remotely by the seller, company, or finance provider. It protects the device from theft and misuse.

• Shows “KG State: Locked” or “KG Status: Active”
• Disables USB debugging and developer options
• Prevents flashing firmware or binaries
• Keeps the phone stuck on setup screen

Common Reasons for KG Lock Activation

• Installment purchase not paid off
• Device reported stolen
• Factory reset of second-hand device
• Firmware update glitches
• Samsung server verification failure

Solution: Remove KG Lock via TSM Tool

TSM Tool is a powerful Samsung unlock utility. It supports the latest Android 14 firmware and the A25 5G U7 variant, using a QR code + app method without root or flashing.

Step-by-Step Guide: Remove KG Lock

Requirements:

• Windows PC or Laptop
• TSM Tool (latest version)
• ADB & Samsung USB drivers installed
• Original USB cable
• Stable internet connection

Files Needed:

• TSM Tool setup
• KG Unlock QR Code (generated inside TSM Tool)
• Samsung ADB drivers

Step 1: Enable ADB Mode

Use TSM Tool’s Force ADB feature. If ADB is unavailable, try emergency dialer trick, *#0*#, or Add Network method to bypass and scan QR code.

Step 2: Scan QR Code

• Go to “Add Network” screen
• Type text > Long press > Tap Assist
• Browser opens > scan the generated QR
• TSM App gets installed remotely

Step 3: Launch TSM App

• Open the installed app
• Connect to PC
• TSM Tool will detect device via ADB

Step 4: KG Unlock Process

From PC tool interface, go to Samsung → KG Lock → QR Method → Start Unlock

Tool completes process within minutes. Phone reboots and KG Lock is gone.

Optional: Do a Factory Reset

After unlock, factory reset your device to avoid software issues, Google account re-lock, or leftover cache.

Why TSM Tool?

• Supports latest patch levels and Android 14
• No need for flashing or risky operations
• Works via QR code and ADB – safe and official
• Trusted by professional technicians

Safety Tips

• Use updated TSM Tool
• Don’t use cracks or unofficial APKs
• Disable antivirus during operation
• Charge phone above 50%
• Backup if data is accessible

What Not To Do

• Don’t flash wrong firmware
• Don’t force downgrade
• Don’t root unless required
• Avoid random unlock tools

Real Technician Use Case

A Samsung A25 5G came in locked with KG Active. The technician used TSM Tool with QR code method and unlocked the phone within 7 minutes. No data loss, no flashing required – 100% success.

Business Use

Mobile repair shops can unlock multiple devices daily. Charging $10–$30 per unlock is common. TSM Tool is a great investment for service providers working with Samsung devices.

FAQs

• Q: Will KG Lock return after reset?
  A: No, if properly unlocked using TSM Tool, it stays removed.
• Q: Can I use SamFW or TFM Tool?
  A: Some tools may work, but TSM Tool is most up-to-date for this model.
• Q: Is the method safe?
  A: Yes, it’s non-destructive and no-root. Follow steps carefully.

Summary Table