RF. MOD, CN4, C86, L6, FB5, FB14, EM31, EM32, EM33, EM34, EM35, EM36, EM37, EM38, OSC1
C24, C38, C63, C71, L3, L5
JP1 or JP2 and JP3 or JP4
Apply thermal tape to the back between the main board and Board-A.
Board-A is installed.