Xbox 360 will not come on!

The problem is most likely dust on the inside of the console or it might be that your power adapter box is broken.first go to google and find out how to open up the 360 properly,once u know that then open it up ,get a hoover and hoover all the dust from inside (while being very careful of all the components)and wipe everything down with a dry cloth.Especially where the two cooling fans are.Please note that if u do open it to do this that it breaks any warranty u have on your xbox but wot the hell its fixed.Hopefully this will help you.Joe Stevenson.

OK!
1) First, do you have the courage to take off the faceplate off of your xbox 360? Just pull it off then check the RF module( The thing that also contains the switch button and all those LED's around it) See if there are any obvious broken connections to anything, then simply return them back to their original places. i have had this happen to me and it was just that the RF module had loosened a little bit. Try this then tell me.