There are four screws located in the highlighted areas. It’ll come open very easily after removing them.
My LED Sensor died a few weeks out of warranty. Doesn’t look like I’ll be able to fix it! Oh well.
I received this error when attempting to install Exchange 2007 SP3. It appears in a few other errors, but generally speaking it’s caused by AppAssure’s Replay Agent
Stop the service and you should be good to go!