phone wont turn on

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http://androidforums.com – Hi my htc inspire wont turn on and the light wont even show when its connected to a charger. Recently I dropped it but it was working fine. Today it froze so I had to take the battery out but when I removed the side cover the volume up and down button came off with it. Now the phone wont turn on at all or even show the light when connected to the charger. Is the side button required to make the phone turn on? also the back cover (where the flash is) seems to be beaten up a little. Could either of these lead to this problem? thank you for the help it is appreciated. (General)