What about a new firmware for F4SD in X220S?

wizardx220
omnibus

#1

What about a new firmware for F4SD in X220S ?
Click and enable the USB does not give the connection. Blue lamp is silent, lit only green. And the constant sound of boozer. In this position there is no connection with Betaflight. In the usual connection there is a connection, but there is no firmware of the controller. Where else have the “boot” switch?