Hmm. Idle-Up switch? Should be away from you.
If the servos move then your transmitter is getting through so it has bound itself to the 4-in-1 but one of the safeties has cut in. Throttle position or Idle-Up will do this.
I can't see it affecting the throttle but if you move the helicopter too soon after plugging in the battery, the gyro won't initialise.