Why does my xbox turn on then off after around 5 seconds

Hi all, my xbox fell to the fall from a high place and the plastic sides came

Off erc the front panel also came off. I opened it up and check the components the flex wire behind the front panel ripped off the one that controls power button, sync, and eject disc. Also I looked at the wifi and Bluetooth the board is not broken or chipped but the top cucuit the ones covered in that metal a little dent in not sure if that means it broken.everuthing else is fine with it I took it apart and none of the other components are lose. I plug in my xbox and try to start it with the the controller via usb and it powers on for about 3 seconds and just turns off and I missing something or do I need a flex strip with the front panel to finsh the boot up or maybe it's the wifi/Bluetooth chip. Any help would be greatly appreciated thanks all