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How to Fix “Target Stuck on IN” and Enable T-Mobile MSM Download Tool for OnePlus 9 Pro

Will Flashing param.bin Fix Target Region Issues for OnePlus MSM Download Tool Users? Is Your OnePlus 9 Pro Stuck on IN Region? Here’s How to Use the T-Mobile MSM Tool

When the MSM Download Tool displays “Target stuck on IN” (India region), you cannot use the T-Mobile MSM Download Tool to unbrick or restore your OnePlus 9 Pro. This issue is caused by the device’s region information being locked in the param.bin partition. To resolve this, you need to flash a T-Mobile-compatible param.bin file.

Step-by-Step Solution

  1. Acquire a param.bin file from a T-Mobile OnePlus 9 Pro. This can be extracted using the MSM Download Tool’s Readback mode or via root-enabled adb commands. Community forums like XDA may have shared param.bin files suitable for this process.
  2. Download and extract Android SDK Platform Tools on your computer.
  3. Transfer the T-Mobile param.bin file into the platform-tools folder.
  4. Enable USB Debugging and OEM Unlocking on your device in Developer Options.
  5. Back up all important data, as this process may wipe your device.
  6. Bootloader unlocking is required for flashing partitions via fastboot. This will erase all data.
  7. Connect your device to the PC.
  8. Open a command prompt in the platform-tools directory.
  9. Enter the following commands:
    adb reboot fastboot

    (Device enters FastbootD mode)

    fastboot flash param param.bin

    (Flashes the new param.bin)

    fastboot reboot

    (Reboots to system)

  10. With the correct param.bin flashed, your device’s region is now compatible. You can now use the T-Mobile MSM Download Tool without encountering the “Target stuck on IN” error.
  11. The MSM Tool will relock your bootloader. To unlock again, generate a new unlock token and use the fastboot command:
    fastboot flashing unlock

Key Points

  • Flashing param.bin changes the region information, enabling MSM Tool compatibility.
  • The process wipes all device data and relocks the bootloader.
  • Always use the correct param.bin for your device model and carrier variant.