iphone 5s error 4013

hi guys.just looking for some information on circled components .i have iphone 5s with error 4013.it appears the board got some damage when shield was being removed from rear of board.u4 rf is damaged and cracked.fl 12 rf is missing as well as other circled components.can i jump any smaller components.i see u4 rf is available to buy.looking to find were i can purchase fl 12 rf.does anybody have information on these components .thank you

Attached Images
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