Hello, I need help, please

[ded5454]

What would you like to know?

Bricked HackRF One with 3 flashing LED's (Usb, Rx and Tx)

[straithe]

Are you using the HackRF on its own or with third-party hardware?

[mossmann]

Are you still needing help? It sounds like behavior that may happen if incorrect firmware is flashed onto the HackRF. There are recovery instructions here: https://hackrf.readthedocs.io/en/latest/updating_firmware.html#only-if-necessary-dfu-boot