ironass, Jan 10, 2019 : Get lots more features, updates and Open Beta test builds! FYI... Just announced today... a method of converting the T-Mobile (USA) carrier minority variant to the global, international, model, running on stock OnePlus firmware... without unlocked bootloader and SIM unlock. "I share with everyone a new method to turn a T-Mobile 6T into an international variant. One that does NOT require an unlocked bootloader or a SIM unlock! Before you proceed: Following the steps below WILL wipe your phone. Please backup all of your important files from the phone before proceeding." Visit the link below to the thread on the xda developers forum... T-Mobile 6T to International Conversion (WITHOUT unlocked bootloader/SIM unlock!) [EDIT] Thousands of T-Mobile (USA) carrier minority variant users have now used this guide to convert to the global model firmware successfully. ironass motto... "Flash in haste... repent at leisure!"