Pixhawk buzzer not working

During a flight i wrongly connect the transmitter and a short-circuit happened. After that the transmitter was burned and thereafter pixhawk shows system error every time when i was trying to Arm. Also the MiniOSD & buzzer not working i changed a new buzzer still the buzzer not working…now in pixhawk I can’t see the FPV OSD data(but video streaming working fine) and buzzer not working. How can i resolve this?

Which transmitter did you connect and what did you connect it to?

I used TS 832 Tx…i wrongly connected +&- alternately… that’s why short-circuit happened…