Introduction

Use this guide to replace a defective motherboard in your Samsung Galaxy S4 Active.

Pry with a plastic opening tool, or your fingernail, in the divot to the left of the rear-facing camera, near the power button. Lift the rear case by the corner nearest the divot and remove it from the phone.
  • Pry with a plastic opening tool, or your fingernail, in the divot to the left of the rear-facing camera, near the power button.

  • Lift the rear case by the corner nearest the divot and remove it from the phone.

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Use the flat end of a plastic opening tool, or your fingernail, to press the microSD card slightly deeper into its slot until you hear a click.
  • Use the flat end of a plastic opening tool, or your fingernail, to press the microSD card slightly deeper into its slot until you hear a click.

  • After the click, release the card and it will pop out of its slot.

  • Remove the microSD card.

  • For reassembly, push the microSD card into the slot until it clicks in place.

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Insert a plastic opening tool, or your finger, into the notch of the battery compartment and lift the battery upward in order to remove it.
  • Insert a plastic opening tool, or your finger, into the notch of the battery compartment and lift the battery upward in order to remove it.

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Use a plastic opening tool, or your fingernail, to press the SIM card slightly deeper into its slot until you hear a click.
  • Use a plastic opening tool, or your fingernail, to press the SIM card slightly deeper into its slot until you hear a click.

  • After the click, release the card and it will pop out of its slot.

  • Remove the SIM card.

  • During reassembly, push the SIM card into the slot until it clicks in place.

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Use the tip of a spudger to remove the four metallic pads located in each corner of the device.
  • Use the tip of a spudger to remove the four metallic pads located in each corner of the device.

  • Remove the 12 visible screws.

Important! 4 of the screws are under the little "metallic" bolsters, one at each corner. These can be removed with a plastic opening tool.

jeremiahmitchell87 - Reply

Use the plastic opening tool to pry around the entire edge of the midframe now to release it from the front case.
  • Use the plastic opening tool to pry around the entire edge of the midframe now to release it from the front case.

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

  • Disconnect the front-facing camera cable connector.

  • Disconnect the earpiece speaker assembly cable connector.

  • Disconnect the headphone jack assembly cable connector.

  • Disconnect the display/digitizer cable connector.

  • Disconnect the antenna cable connector.

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Remove the single 2.4 mm Phillips #00 screw from the motherboard assembly.
  • Remove the single 2.4 mm Phillips #00 screw from the motherboard assembly.

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Remove the motherboard.
  • Remove the motherboard.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

18 other people completed this guide.

Geoff Wacker

Member since: 09/30/2013

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119 Guides authored

2 Comments

Kiitos paljon

Kimmo Vaalanti - Reply

I need a diagnosis. My device seems to be in a boot loop....any thought and suggestions would be helpful.

Justin Lujan - Reply

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