The “Repartition Operation Failed” error sounds technical, but it’s usually a checkbox mistake or a missing PIT file. By understanding that repartitioning is rarely needed for routine flashes, you can sidestep most causes. If it persists after methodical troubleshooting, suspect hardware — but in the vast majority of cases, unchecking Re-Partition and re-flashing the correct firmware resolves it.
If you are flashing the exact same firmware version or an update (not a downgrade or region change), you should not be repartitioning at all.
Look at the Odin interface or the log window. If the error is followed by strings like Write Partition... Fail! or mmc write failed, it strongly points toward hardware failure. If it says Size Mismatch, it is a PIT file issue.
Scenario: Repartition failed with metadata showing new partition P3 but /dev/sdb has no corresponding partition.
Many guides tell you to check only "Auto Reboot" and "F. Reset Time." But if your firmware package contains a PIT file (like the COMBINATION or factory binaries), Odin can automatically enable "Re-Partition." Without the correct PIT file, it fails. repartition operation failed odin
Repartitioning—resizing, creating, deleting, or moving partitions—is a routine but risky maintenance task for storage systems. When a repartition operation fails on an Odin-based system (hereafter “Odin”), it can cause downtime, data inconsistency, or loss. This paper presents systematic approaches for identifying root causes, safely resuming or rolling back operations, and restoring service while minimizing data loss.
The "Re-Partition operation failed" error in Odin is a critical interruption that occurs when the tool cannot modify the internal storage structure of a Samsung device. This typically happens during a firmware flash when the "Re-Partition" option is selected without providing a valid Partition Information Table (PIT) file, or when a hardware/connection issue prevents the tool from communicating with the device's NAND flash memory. Common Causes of the Error
Missing or Corrupted PIT File: Odin requires a PIT file to understand the device's storage layout; if "Re-Partition" is checked but no valid PIT is provided, the process will fail.
Faulty USB Connection: A damaged cable, a loose port, or using a USB 3.0 port instead of 2.0 can cause data transfer interruptions that trigger this error. If you are flashing the exact same firmware
Corrupted Firmware Files: If the firmware binaries (BL, AP, CP, CSC) are damaged or incompatible with the specific device model, the partition attempt will often fail.
Bootloader Mismatch: Samsung devices generally do not allow downgrading to a lower bootloader version. Attempting to flash older firmware can lead to write failures.
Hardware Failure: In some cases, the physical NAND chip inside the phone may be corrupted or failing, making it impossible for the software to rewrite the partition table. Troubleshooting and Fixes
Uncheck "Re-Partition": In many cases, users accidentally check this box. Unless you are specifically trying to fix a corrupted partition table and have a PIT file, this should remain unchecked. Look at the Odin interface or the log window
Verify the PIT File: If you must re-partition, ensure you use a PIT file that exactly matches your device's model number and storage capacity (e.g., 128GB vs 256GB). Flashing the wrong PIT can permanently damage the device.
Switch USB Cables and Ports: Use the original Samsung USB cable and connect it to a direct USB 2.0 port on the back of your PC rather than a front-panel hub.
Use the Latest Odin Version: Older versions of Odin may be incompatible with newer Samsung devices or firmware formats. Always use the latest stable release.
Force Restart: If the device is stuck in Download mode, you can usually exit by holding Volume Down + Power for 7–10 seconds.
For further assistance, you can refer to community guides on Reddit's AndroidQuestions or detailed technical walkthroughs on Scribd's Odin NAND Erase and Re-Partition Guide. lt;ID:0/006> Re-Partition operation failed.
Sometimes, Windows Defender or third-party antivirus software blocks Odin from writing partition tables, interpreting the action as malicious.
