Reboot Instant Switch:
To cycle power to the device in the event that the Instant Switch becomes unresponsive, press and hold 7 and 1 simultaneously for 10 seconds, then release.
Reset Instant Switch:
To reset the pairing and allow pairing to a new device, press and hold 7 for 10 seconds, until LED blinks red. After resetting, be sure to remove the Instant Switch pairing for the originally paired iDevices product using the steps here: Unpairing Instant Switch