When a device is KG-locked, traditional flashing via Odin or standard factory resets will not remove the restriction. For device technicians, using a hardware service tool like is one of the most reliable methods to permanently clear the KG lock state by interacting directly with the device's physical storage chip. Understanding the Risks and Requirements
Removing Samsung KG Lock using Easy JTAG is a straightforward process that requires some basic technical knowledge. Here's a step-by-step guide:
for your specific Samsung model (or a compatible socket for chip-off). Easy JTAG Plus Software installed on your PC. samsung kg lock remove easy jtag
I can provide the precise pinout locations or specific partition names for that model. Share public link
Using a fine-tip soldering iron (300-350°C), attach thin enameled wires to: When a device is KG-locked, traditional flashing via
Samsung KG Lock Remove Easy JTAG: A Complete Guide to Permanent Bypass
(eMMC or UFS depending on the Samsung model). Soldering Station & Microscope for ISP wire connections. Here's a step-by-step guide: for your specific Samsung
Carefully disassemble the device to access the motherboard.
Adjust the voltage settings (usually and VCCQ = 1.8V or 2.8V depending on stability). Set the bus width to 1-bit for ISP. Click Connect Direct to eMMC/UFS .
This paper explores the technical intricacies of removing the Samsung "KG Lock" (KeyGuard Lock), commonly manifested as a "Reactivation Lock" or "Find My Mobile" persistent state, utilizing hardware-based JTAG (Joint Test Action Group) methodologies, specifically focusing on tools such as Easy JTAG. While software exploits remain the primary vector for device unlocking, hardware intervention via JTAG provides a robust solution for devices with encrypted partitions or disabled USB debugging. This document details the underlying architecture of the Samsung TrustZone, the mechanism of the KG Lock, the physical process of JTAG interfacing, and the forensic implications of modifying persistent storage (eMMC) to reset lock states.
Lower risk of heat damage to the motherboard or storage chip.