To remove MDM (Mobile Device Management) from a Samsung A055F (which is the Samsung Galaxy A05) using ISP (In-System Programming) and a file-based method, you are following a process that typically involves several steps, including unlocking FRP (Factory Reset Protection) and converting the KG (Knox Guard) status from "Locked" to "Broken." Afterward, you would apply the appropriate file to remove the MDM. Here’s a general guideline for the process based on your description:
Prepare Necessary Tools and Files
ISP Cable: This is used to directly connect to the device’s eMMC or NAND flash, bypassing the normal boot process to enable low-level access.
FRP Reset File: A firmware or file specifically for resetting the FRP on the device.
Knox Guard (KG) Unlock File: This file will be used to convert the Knox Guard from "Locked" to "Broken."
MDM Removal File: This file is used to remove the MDM after the previous steps.
Remove FRP (Factory Reset Protection)
Use an appropriate FRP bypass tool or file to remove the FRP lock.
FRP can be bypassed using tools like Odin or a direct ISP file that resets FRP.
You may also use third-party tools like UFI Box, Z3X Box, or Medusa to help with FRP reset depending on what tools you have.
FRP is typically removed using a specific firmware file or by accessing recovery mode through ISP.
Convert Knox Guard (KG) Status from "Locked" to "Broken"
The Knox Guard is a security feature that locks the bootloader and prevents access to certain system partitions. To remove MDM, you need to convert the Knox Guard status from "Locked" to "Broken."
Use a specific file or tool for converting Knox Guard. Some tools that support this feature include UFI, Z3X, or Octopus Box.
You may need to use an ISP cable or a test point to access the eMMC or NAND and apply a firmware file that changes the Knox status.
Apply the MDM Removal File
Once FRP and Knox Guard are dealt with, you can apply the MDM removal file.
MDM files are often provided by your box’s software provider (e.g., Infinity CM2, UFI, Z3X). These files should be used after unlocking FRP and breaking the Knox Guard.
Flash the MDM removal file using the ISP connection or using software like Odin (for Samsung devices) or other tools like UFI or Medusa.
5. Flash the Device with a Clean Firmware (Optional)
After MDM is removed, it may be a good idea to flash the device with a clean, stock firmware to ensure that the phone is operating normally without any leftover settings or issues.
You can do this using Odin or other flash tools like UFI.
Ensure that the firmware you flash is compatible with the Samsung Galaxy A055F (A05).
Tools You Might Need:
Odin: For flashing Samsung firmware.
ISP Box (eMMC, NAND Flash): For in-system programming (hardware).
UFI Box, Z3X Box, or Octopus Box: These can be used to deal with FRP, Knox, and other security features.
MDM Removal Files: Usually available from professional servicing tools and software.
Important Notes:
Backup Your Data: Make sure to backup any important data before starting the process as this may involve flashing the device and resetting it to its factory settings.
Legality and Ethics: Removing MDM locks may violate terms of service or local laws depending on your region and the device’s ownership. Always ensure you have proper authorization and are following the legal and ethical guidelines for device servicing.
Device Warranty: Performing these operations may void the device's warranty, so proceed with caution.
If you're using specific software or hardware for this process, I can guide you through the exact steps for that tool. Let me know if you need further assistance!