How to flash your T-Mobile OnePlus 6T with unlocked software
TOOL][OP6T] TOOL ALL IN ONE (Drivers|Unlock|TWRP|Factory Image|Stock Recovery) | XDA Forums
Restore OnePlus 6/6T to Stock via Fastboot Commands - DroidWin
Ubrokeifixit for OnePlus 6T Housing Rear Back Glass Door Cover Replacement with Camera Glass Lens/Flash for OnePlus 6T A6010 A6013 LTE 6.41"(NOT for OnePlus 6 LTE 6.28") (Mirror Black) : Buy Online
Amazon.com: ubrokeifixit for OnePlus 6T Housing Rear Back Glass Door Cover Replacement for OnePlus 6T A6010 A6013 LTE 6.41" (Clear) : Cell Phones & Accessories