When I plug in a 7941, it gets the inline power from the switch, lights all LEDs and performs the following cycle:
Breifly lights the Mute button, and then lights the Speaker button. After about 10 seconds, the Speaker light goes off, line 1 button blinks amber once, line 2 button blinks green once and the Headset button gets lit. Then line 1 button blinks green once and line 2 button blinks green once. The Headset button stays lit. After about 19/20 blinks of the green line buttons, The Headset light goes off and the cycle starts again from the breif lighting of the Mute button.
This cycle takes about 2 minutes. There is never any information displayed on the LCD screen, and therefore will not register. Is this recoverable?