[GUIDE][Unlocked] Flashing T-Mobile OnePlus 6T to International OOS ROM

Note: Firmware flashing procedure is exactly the same for all firmware versions for conversions.

Local Updating using: 9.0.11 is safe

This is a basic write up to convert your bootloader unlocked T-Moilbe OnePlus 6T to the International Version firmware via fastboot flashable firmware files.
Contents:
-Disclaimer
-Full Device Backup - Precautionary - Optional, but Recommended.
-Firmware Conversion Process
-Update after conversion
-Rom Sources
-MSMDownloadTool
-FAQ's...

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