How to Remove KG Lock from Samsung MTK Devices Permanently 2024

How to Remove KG Lock from Samsung MTK Devices Permanently 2024

KG lock is a security feature that prevents unauthorized modifications to Samsung devices. It is activated when the device is connected to the internet and enrolled in Knox, a service that provides device management and protection. KG lock can cause problems for users who want to flash custom ROMs, root their devices, or unlock their bootloaders.


Fortunately, there is a way to remove the KG lock from Samsung MTK devices permanently, even if you put in firmware or do a factory reset. This method works for most Samsung MTK models, such as A10s, A01 Core, M01s, etc. You will need either Unlocktool or Chimera, two tools that can bypass the MTK authentication and flash the device in bootrom mode. You will also need a modified file called PATCH_HALABTECH.zip, which is provided by HALABTECH, a website that offers solutions for Samsung devices.

Here are the steps to follow:


  • Backup NV: This is a very important step, as it will allow you to restore your original network settings and IMEI after removing the KG lock. To back up NV, you need to connect your device to the computer and use Unlocktool or Chimera to read the NV partitions. Save the backup file in a safe place.
  • Erase NV: This step will erase the network settings and IMEI from your device, which will make it easier to unlock the bootloader and erase the rpmb. To erase NV, you need to use Unlocktool or Chimera to write an empty NV file to the device. You can download an empty NV file from here.
  • Unlock Bootloader: This step will allow you to flash custom files to your device. To unlock the bootloader, you need to use Unlocktool or Chimera to send the unlock command to the device. You may need to enable OEM unlocking and USB debugging in the developer options first.
  • Erase rpmb: This step will erase the secure storage area of your device, which contains the KG lock status. To erase rpmb, you need to use Unlocktool or Chimera to write an empty rpmb file to the device. You can download an empty rpmb file from here.
  • In restore NV pass PATCH_HALABTECH.zip file: This step will write a modified NV file to your device, which will trick the device into thinking that the KG lock is in a prenormal state. To do this, you need to use Unlocktool or Chimera to restore the NV partitions, but instead of using the original backup file, you need to use the PATCH_HALABTECH.zip file. You can download the PATCH_HALABTECH.zip file from here.
  • Do hard reset and configure it and DO NOT connect it to the internet: This step will reset your device and remove any traces of the previous steps. To do this, you need to power off your device and enter the recovery mode by pressing the volume up and power buttons together. Then, select wipe data/factory reset and confirm. After that, reboot your device and set it up as a new device, but do not connect it to the internet or sign in to any account.
  • Put in download and verify that the kg is in Paranormal: This step will check if the KG lock status has changed to Paranormal, which means that it is not activated yet. To do this, you need to power off your device and enter the download mode by pressing the volume down and power buttons together. Then, connect your device to the computer and use Unlocktool or Chimera to read the info. You should see that the KG state is prenormal.
  • Turn it on and connect it to the internet, complete the setup steps, and let it finish upgrading Knox Enrollment: This step will activate the KG lock, but with the modified NV file, it will not lock the device. To do this, you need to power on your device and connect it to the internet. Then, complete the setup steps and sign in to your account. You should see a notification that Knox is enrolling your device. Wait for it to finish and do not interrupt the process.
  • Put it in download and verify that the kg is normal, active, or prenormal: This step will check if the KG lock status has changed to normal, active, or prenormal, which means that it is not locked anymore. To do this, you need to power off your device and enter the download mode by pressing the volume down and power buttons together. Then, connect your device to the computer and use Unlocktool or Chimera to read the info. You should see that the KG state is normal, active, or prenormal.
  • Restore the original NV backup by unmarking the indicated partitions: This step will restore your original network settings and IMEI to your device, which will make it fully functional. To do this, you need to use Unlocktool or Chimera to restore the NV partitions, but this time, you need to use the original backup file that you saved in step 1. However, you need to unmark the following partitions, as they contain the KG lock status:
  • efs
  • nvcfg
  • nvdata
  • nvram
  • preloader
  • proinfo
  • protect1
  • protect2
  • sec_efs
It will finish the process and it will restart and you start it and that’s it: This step will complete the process and reboot your device. To do this, you just need to wait for Unlocktool or Chimera to finish the restore and restart your device. Then, you can start using your device normally and enjoy the freedom of having no KG lock.

Congratulations, you have successfully removed the KG lock from your Samsung MTK device permanently. You can now flash custom ROMs, root your device, or unlock your bootloader without any problem. However, be careful and always backup your data before doing any modifications to your device. Also, be aware that this method may void your warranty and cause some issues with Knox services. Use it at your own risk.

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