How to Rebrand the T-Mobile OnePlus 6T Without Unlocking Bootloader

Rebranding the OnePlus 6T from T-Mobile carrier ROM to international version has always required an unlocked bootloader, until now. The OnePlus modding community has figured out a method of rebranding the OnePlus 6T to the international ROM, without any unlock or root required. We’re not even going to use ADB!

It is a very simple procedure, just follow this guide closely. Note: This procedure will wipe your phone’s data, please backup all important user data before proceeding.


  1. First download both tools from the requirements section. Extract the MSMDownloadTool folder on your desktop.
  2. Turn off your OnePlus 6T, then hold Volume Up + Volume Down while connecting a USB cable to your PC.
  3. Check if your OnePlus 6T is recognized by Windows Device Manager. Look in Other > QUSB_BULK or Ports > Qualcomm.
  4. If it shows up in Other > QUSB_BULK, manually install the driver from the download link we provided. If its in Ports > Qualcomm, you may continue.
  5. Now extract the patched flasher tool’s .exe file to the same folder as the extracted MSMDownloadTool.
  6. Launch the MSMDownloadTool .exe, and click the “Start” button.
  7. It will take about 5 to 10 minutes to fully patch, when its done your OnePlus 6T will automatically reboot.
  8. If it worked correctly, you should see an OxygenOS logo during boot, instead of the T-Mobile logo.
Kamil Anwar
Kamil is a certified MCITP, CCNA (W), CCNA (S) and a former British Computer Society Member with over 9 years of experience Configuring, Deploying and Managing Switches, Firewalls and Domain Controllers also an old-school still active on FreeNode.

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How to Rebrand the T-Mobile OnePlus 6T Without Unlocking Bootloader

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