When flashing stock firmware using SP Flash Tool, you may encounter the error: "PMT changed for the rom: it must be downloaded". This guide provides an easy fix for this common issue.

What Causes the "PMT Changed for the ROM" Error?

This error typically occurs when there's a mismatch between the partition layout in the firmware you're trying to flash and the existing partition table on your device. It's a safety measure to prevent potentially damaging partition changes.

Step-by-Step Solution

  1. Open SP Flash Tool

    • Launch SP Flash Tool on your computer.

  2. Navigate to Format Tab

    • In the SP Flash Tool interface, click on the "Format" tab.

  3. Format the Device

    • Once in the "Format" tab, click the "Start" button to format your phone.
    • This process will erase all data on your device, so ensure you have a backup.

  4. Return to Download Tab

    • After formatting is complete, go back to the "Download" tab.

  5. Load Scatter File

    • Click on the "Scatter-loading" button.
    • Navigate to and select the scatter file of the firmware you wish to flash.
    • The scatter file is usually named "MT****.txt" or "scatter.txt".

  6. Initiate Download

    • Click the "Download" button in SP Flash Tool.

  7. Connect Your Device

    • Connect your phone to the computer using a USB cable.
    • Make sure your device is powered off before connecting.

  8. Monitor Flashing Process

    • The flashing process should now begin.
    • Wait for the process to complete. Do not disconnect your device during this time.

Alternative Method: Using the "Firmware Upgrade" Option

Some versions of SP Flash Tool offer a "Firmware Upgrade" option:

  1. In SP Flash Tool, look for a "Firmware Upgrade" tab or option.
  2. Load your scatter file here.
  3. This option often handles partition changes automatically, potentially avoiding the PMT error.

Video Tutorial

For a visual guide, you can watch this short YouTube video demonstrating the fix: https://www.youtube.com/watch?v=N8OkQEVRqJo

Troubleshooting Other SP Flash Tool Errors

If this solution doesn't resolve your issue, or if you're encountering different errors with SP Flash Tool, check out our comprehensive guide on SP Flash Tool errors and their solutions.

Important Notes

  • Always ensure you're using the correct firmware for your specific device model.
  • Flashing firmware can be risky. Make sure you understand the process and potential consequences.
  • Back up all important data before attempting to flash or format your device.
  • If you're unsure about any step, seek help from experienced users or professional technicians.

The "PMT changed for the ROM" error is a common issue when using SP Flash Tool, but it's usually easily resolved by formatting the device before flashing. Always exercise caution when modifying your device's firmware, and ensure you're using reliable sources for your firmware files.