Thanks Phil and Chris. No "beeps" Phil, just silence. This is the procedure I used Chris. Bind button on Rx pressed, switch on, red and green LEDs light up. Release button. Switch on TX(at least 1 Metre away). Select "Bind" from menu. Press Bind. Ikon No beeps from Tx. Steady red and green on Rx. Before I upgraded to version 2.2, the same procedure had beeps from the TX and the LEDs on the Rx went from red and green to flashing red. After binding and switching everything off, switched the Tx on again, switched on the Rx, that had a steady green and the servos worked OK. Another thing is that after plugging the Tx into the USB on the computer, the Tx isn't seen, I loaded the recommended driver, but that had no effect. Can't talk to the Tx via Companion either. I'm going to see if there's a way to re-establish the operating system from square one, there must be something on the Internet that'll help sort it. Unless the fault is caused by component failure.