Samsung Kg Lock Remove Easy Jtag Exclusive
Knox Guard (KG) Lock
Samsung is a specialized security state that prevents unauthorized device use, often triggered by missed payments or corporate MDM policies. Unlike standard FRP, KG Lock remains active even after factory resets and can block bootloader access and Odin flashing.
JTAG (Joint Test Action Group)
The interface was originally designed for hardware debugging and programming flash memory directly via test points on the motherboard. “Easy JTAG” refers to a family of boxed programmers (such as the Medusa Pro II, Easy JTAG Plus, or Z3X Easy JTAG) that read and write raw memory addresses without going through the phone’s processor or boot sequence. samsung kg lock remove easy jtag exclusive
Why does KG Lock trigger?
“Detect Target”
Click on . If the IDs are read correctly, you’ll see: Knox Guard (KG) Lock Samsung is a specialized
- Right-click the
persistpartition and select "Read Data". Save the file to your PC. - Open the saved file using a Hex Editor (like HxD).
- Search for the string
rmm_stateorRMM. - If found, change the value from
1(Locked) to0(Unlocked). - Search for
kgorkeyguardand erase/nullify the data related to it. - Save the file.
- Back in EasyJtag, right-click
persistand Write the modified file back to the phone.
- Power down device and open casing; locate test points, JTAG pads, or eMMC/UFS chip.
- Connect JTAG adapter to board test pads following board pinout (GND, VCC, TCK, TMS, TDI, TDO or eMMC lines).
- Verify connectivity and chip recognition in JTAG software. If not recognized, check solder joints and voltages.
- Dump full eMMC/UFS image to a safe store (raw backup). Label with model and date.
- Extract and examine partition table: identify EFS, persist, boot, KG-related partitions.
- If KG flag set in persistent/efs metadata, create or restore a clean/stock partition image:
- Put the eMMC/UFS into a degraded mode (bypassing RPMB authentication).
- Patch the persist partition without tripping Knox eFuse (0x1).
- Force the KG state from "Prenormal" to "Completed" or "Locked" → "Closed".
Easy-Jtag Plus Box
The provides a hardware-level solution that bypasses software-level restrictions by interacting directly with the device's memory. Key Features of Easy-Jtag KG Removal Power down device and open casing; locate test
- Perform a Factory Reset to ensure your device is restored to its original state.
- Set up your device again, and make sure to disable KG Lock or Knox Guard Lock to prevent future issues.