If you are experiencing issues with your Kindle Fire 2 HD like Freezing lags non-responding etc, then it may be a good idea for you to do a hard/soft reset back to factory original.  Below are steps to do just that. kindle fire hd 2 hard reset

Hard Reset

  1. Please press and hold the power button on the bottom of the device for 20 seconds.
  2.  After the 20 seconds, please release the power button
  3.  Please wait for the Kindle Fire to restart.
  4. If it didn’t work, then I suggest you call amazon kindle support. 1-877-453-4512