Problematic FCs

ESP based RXes Locking into bootloader on powerup

Flight Controller	RX	Bad UARTs	Good UARTs
TMotor F411 TRON 80		UART2
BetaFpv F3 (STM34F303xC)	EP2	UART3	UART 1

Problematic inverters causing passthrough failure

Flight Controller	RX	Bad UARTs	Good UARTs
Matek F405-Wing	es915rx	UART5	UART2
Matek Mini F411SE	R9MX	UART1	UART2