Introduction
Use this guide to replace a defective motherboard in your Samsung Galaxy S4 Active.
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Pry with a plastic opening tool, or your fingernail, in the divot to the left of the rear-facing camera, near the power button.
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Lift the rear case by the corner nearest the divot and remove it from the phone.
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Use a plastic opening tool, or your fingernail, to press the microSD card slightly deeper into its slot until you hear a click.
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After the click, release the card and it will pop out of its slot.
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Remove the microSD card.
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Insert a plastic opening tool, or your finger, into the notch of the battery compartment and lift the battery upward 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.
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After the click, release the card and it will pop out of its slot.
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Remove the SIM card.
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Use the tip of a spudger to remove the four metallic pads located in each corner of the device.
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Using a Phillips #00 screwdriver, remove the 12 screws connecting the midframe to the device.
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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.
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Disconnect the front-facing camera cable connector.
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Disconnect the earpiece speaker assembly cable connector.
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Disconnect the headphone jack assembly cable connector.
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Disconnect the display/digitizer cable connector.
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Disconnect the antenna cable connector.
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To reassemble your device, follow these instructions in reverse order.
