There are a few things that you can do in order to fix an unresponsive RB Elite Series 2. The first step is to check to see if the power cord is being plugged in properly. If it isn't, then you may need to replace the power cord. The second step is to try and turn the device on by pressing and holding the power button for about 5 seconds. If that doesn't work, then you may need to reset the device.