Xperia Z3 D6603 missing components on board
 

got an Z3 D6603 with a small water damage. those 2 components (marked red on the picture) were very corroded so i had to remove them.
the phone is fully functional and i coulnd't discover anything not working.

but those 2 componets are not there for nothing. wondering if someone knows what these are for?

http://cdn04.trixum.de/upload2/18480...cebf502076.jpg