Chosen Solution

i have two boards of 5s one with blue screen and seccond with i cloud, i found the phone with blue screen have missing component and i want to transfer component from one board to second, but when i turn back sides of logic board they are not the same, and i need help with that. look at the pictures and can anyone tell me is that the right component, i mark them in paint with red circle. on first picture is the missing , and second pic is from other 5s board wich is a bit differrent but is that the right component

Vladan Vojinovic the part you circled on the spare board and the one on the missing board are identical. The component missing is U12_RF which is a 2.4-5Ghz HMD809J and is used to match the WLAN antenna.