To repair your Samsung Galaxy J7 V's motherboard, follow these steps: replace it with a new one. First, access the internal components by disassembling the device.
Handle the OLED display with care as it's prone to damage.
Slide the Jimmy tool gently around the phone's edge.
Handle the display's ribbon cables with care due to their fragility.
Insert a metal spudger into the gap between the home button and its surrounding socket.
Position the phone so that the back is facing down.
Lift the bottom edge of the battery to avoid damage or injury.
Remove all 14 screws from the midframe with a Phillips #00 screwdriver.
Flip the phone over.
Flip the phone over.
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