In this Appuals guide we will show you how to flash the OnePlus 6T to the international firmware if you are on carrier-branded firmware. Follow our steps closely, and comment if you encounter any issues.
Requirements
Updating After Conversion
Do not flash a full ROM via TWRP without following our guide for rooted users. Non-rooted users: Rooted users: If you install the full ROM through TWRP, your device will probably not boot afterwards. There are additional steps to perform. Note: If you use the local upgrade route instead of TWRP, you can re-lock your bootloader, which enables widevine L1 for HD videos, and also gives you a certified Google Play device. You can use the fastboot command fastboot oem lock, but be warned this will factory reset your device.
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