HELP iPhone 5 so many missing part Schema needed – iphone mobile something wrong with

Hi all, i got iPhone 5 from Customer, the history for this iPhone is Water damage. and This Phone already Try to repair by somebody else. but still not working. This Phone sometime connect and detect by DFU Mode.
I dont have ****ing schematic for iPhone 5, so kindly Help me to Find and recognize what part should be in there?

i will be apreciate for any to be helped…many thanks
cheers!