I tried this and got the Qualcomm crashdump error. I had to use the MSM tool and revert to the older (Android 10) T-Mobile software in order to convert to Global.First I need to make sure the update works. The Global rom comes directly from the OnePlus website for the 8. The video I linked most likely will not work with US branded phones. With an unlocked bootloader, you cannot receive updates from Android updates. I am going the fastboot route when I get my unlocked token.
My question is can I simply flash the global rom via fastboot straight across via Android SDK platform tools without reverting to an Android 10 rom.
The Android 11 Global rom is newer than the latest T-Mobile Android 11 rom.