Samsung SM-A510FD Service Manual page 13

7. Level 2 Repair
5
1) Assemble main PBA and Connect Sub PBA and PBA
7
1) Screw 1 Screws in PBA Ass'y
2) Connect the coaxial Cable Head OCTA, Home Key,
Sub PBA Connetor
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6
1) Push battery and Contact to Main PBA
8
1) Assemble Rear to Bracket assy