g920f no sim problem

Strange problem with G920f if i insert a sim card phone says inserted sim card Reboot? and after reboot phone says no sim emergency cals only,after this i disassembled the phone and see someone has already played with sim reader but looks like all pads are ok except the ground pads can anyone help me to fix this problem

Attached Images
File Type: jpg mus 920f sim1.jpg (508.4 KB)
File Type: jpg mus g920f sim2.jpg (465.2 KB)