"Hard to tell you what to undo when we don't know what was done.  Good luck."

"It might help if you were to tell us what your brother did.  It is difficult to say what is wrong when we can't see anything and we have no idea what was done.  "

"Isn't the battery showing 12+ volts on the display?  I don't understand why you think it is zero.

So....did you look in the manual about what is required to arm the IRIS?"

"You typically can't arm with only 5 satellites in view.  (your photo shows 5 sats on the display)
I've no idea what a yellow light is.....I don't have an ISIS.  Perhaps it flashes when you don't have satellite lock?  
Did you get a manual with your…"

"Arducopter 3.2 is the most recent release.  Yes, when a new version of the firmware is released, you can update the PixHawk."

"Erik....congrats!  Way to go.  Sounds like you are getting things going very well now.  Yes, channel 5 is most handy for applying the various flight modes to the board.  I have a batch (6 of them) programmed in the APM and my transmitter.  I was out…"

"Erik,
As they say, the devil is in the details.  Glad to hear you got the ESCs calibrated....I'm sure your next attempt at flying will meet with much better results.  I put my first quad together in November....so I understand your comment about the…"

"Erik....come on....I gave you the link to the Wiki to answer you last question.  As I said then, the Wiki is a great read.  And....you really need to read it.  I realize it takes time and you want to get this into the air.  But in the time you spend…"

"Don't know what may have caused your problem, but am curious as to if you had any failsafes set on your APM?  RTL can be engaged when a loss of signal from your transmitter occurs (or you simply turn it off).  However, launching from a…"

"Under the "Arming the Motors" section, read the 2nd Note:....midway down the page.  
The Wiki is an excellent read....lots and lots of helpful information in it. "

"That is good to know info....and a piece of Mission Planner I had not explored. "

"Channel 5 is used to assign flight modes to the quad copter.  Auto Mode is one these modes and it is used to fly a set of commands and waypoints that you have entered into Mission Planner and then saved to the APM. 
I know of no way to fly a mission…"