Samsung Galaxy S4 Motherboard Replacement

Use caution when prying — risk of damage.

• Insert a plastic opening tool or your fingernail into the divot to the left of the rear-facing camera.
• Pry carefully near the power button.

Grasp the rear case at the corner adjacent to the divot and lift it off the phone.

Insert microSD card with flat end of spudger or fingernail.

• Press card slightly deeper until you hear a click.
• Release card and it will pop out of slot.
• Remove microSD card.

Be careful not to force the card, as it may be damaged.

For reassembly, insert microSD card until it clicks into place.

Insert the plastic opening tool or your finger into the notch on the battery compartment.

• Lift the battery upwards.
• Remove the battery from your phone.

Use a plastic opening tool or your fingernail to press the SIM card slightly deeper into its slot.

• You will hear a click when the card is fully seated.
• Release the card and it will pop out of its slot.
• Remove the SIM card.

Push the SIM card into the slot during reassembly until you hear the click to secure it in place.

Remove nine 4.0 mm Phillips #00 screws holding the midframe to the display assembly.

Bend the midframe carefully to avoid cracking the chrome bezel.

• Insert a plastic opening tool into the seam between the display glass and the larger chrome border piece, starting on the volume button side of the phone.
• Slide the tool along the seam to separate the plastic clips behind the chrome bezel.
• Pry gently and carefully, only enough to release the plastic clips.

Continue to pry around the corner of the phone.

• Slide the opening tool along the seam between the midframe and display on the bottom of the device, releasing more plastic clips.

• Pry around the corner towards the power button.
• Slide a credit card or similar tool along the seam.

Continue sliding the opening tool around the top of the phone.

• Release any remaining plastic clips and free the midframe from the display assembly.
• Run the plastic opening tool along the entire perimeter again, if necessary, to ensure all clips are released.

Remove the midframe from the display assembly.

• Use the flat end of a spudger to disconnect the USB board connector.
• Remove the front-facing camera cable connector.
• Disconnect the earpiece speaker assembly cable connector.

Disconnect the headphone jack assembly cable using a plastic spudger.

• Remove the display/digitizer cable using a plastic spudger.
• Release the antenna cable connector by gently twisting and pulling it away from its socket.

Remove the 2.4 mm Phillips #00 screw securing the motherboard assembly.

Remove the motherboard carefully.

• Motherboard handling: grasp by edges only, avoid static damage.
• Avoid snagging on cables when removing from display assembly.

Disconnect the rear-facing camera connector with the flat end of a spudger.

Use tweezers or your fingers to slide the rear-facing camera out of its notch on the motherboard.