Introduction

In this guide, you will learn how to replace the motherboard- the very foundation of the tablet's function. Though you might be frightened to replace such a complicated component of the tablet, do not worry. The many steps involved in the process take up quite some time, but are fairly easy to follow. All you need for the motherboard replacement are a good set of tools and this detailed guide to follow.

Before disassembling your Samsung Galaxy Tab 4 8.0, be sure it is powered off. At the top of the tablet, nudge the blue plastic opening tool between the back plastic casing and the front panel's metal rim. Do not use excessive force when prying the clips, fastening the casing together, open because they can easily break.
  • Before disassembling your Samsung Galaxy Tab 4 8.0, be sure it is powered off.

  • At the top of the tablet, nudge the blue plastic opening tool between the back plastic casing and the front panel's metal rim.

  • Do not use excessive force when prying the clips, fastening the casing together, open because they can easily break.

How do u find the tool to open it

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NOTE: Make sure to remove both the SIM card and the Micro SD card prior to disassembly. Failure to do so could result in broken parts.

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Continue prying the blue plastic opening tool along the perimeter of the tablet to separate the back plastic casing from the front assembly panel. As right-handers, we found it easiest to move clockwise and use more pressure around the corners to facilitate the process.
  • Continue prying the blue plastic opening tool along the perimeter of the tablet to separate the back plastic casing from the front assembly panel.

  • As right-handers, we found it easiest to move clockwise and use more pressure around the corners to facilitate the process.

  • You might hear several popping noises caused by the plastic clips coming undone.

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To avoid damaging the screen, gently set the tablet with the LCD screen faced down. Firmly grasp the back plastic casing and lift it away from the front assembly panel.
  • To avoid damaging the screen, gently set the tablet with the LCD screen faced down.

  • Firmly grasp the back plastic casing and lift it away from the front assembly panel.

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The front camera's ribbon cable is located just above the battery, slightly to the left. Carefully insert the flat end of the blue plastic opening tool under the connector at the end of the ribbon cable. Carefully insert the flat end of the blue plastic opening tool under the connector at the end of the ribbon cable.
  • The front camera's ribbon cable is located just above the battery, slightly to the left.

  • Carefully insert the flat end of the blue plastic opening tool under the connector at the end of the ribbon cable.

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Slightly apply pressure and move the blue plastic opening tool downwards to pop the front camera’s gold rectangular connector from its socket on the motherboard.
  • Slightly apply pressure and move the blue plastic opening tool downwards to pop the front camera’s gold rectangular connector from its socket on the motherboard.

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Squeeze the gold rectangular piece with the tweezers to gently lift it from its pit. Squeeze the gold rectangular piece with the tweezers to gently lift it from its pit.
  • Squeeze the gold rectangular piece with the tweezers to gently lift it from its pit.

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The back camera will be located near the top of the tablet in the center above the battery. Carefully insert the flat end of the blue plastic opening tool under the metal rectangular end of the back camera’s cable connector.
  • The back camera will be located near the top of the tablet in the center above the battery.

  • Carefully insert the flat end of the blue plastic opening tool under the metal rectangular end of the back camera’s cable connector.

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Slightly apply pressure and move the blue plastic opening tool downwards to pop the back camera’s metallic rectangular connector from its socket on the logic board.
  • Slightly apply pressure and move the blue plastic opening tool downwards to pop the back camera’s metallic rectangular connector from its socket on the logic board.

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Squeeze the metallic rectangular piece with the tweezers to gently lift it from it's pit. Squeeze the metallic rectangular piece with the tweezers to gently lift it from it's pit.
  • Squeeze the metallic rectangular piece with the tweezers to gently lift it from it's pit.

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Peel up the detachable corner of the white plastic sticker that reads “pull (hands only).” Remove the sticker to form a tab. Remove the sticker to form a tab.
  • Peel up the detachable corner of the white plastic sticker that reads “pull (hands only).”

  • Remove the sticker to form a tab.

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Using your thumb and index finger, pinch the tab and pull  it up to remove the top right corner of the battery from the front panel assembly.
  • Using your thumb and index finger, pinch the tab and pull it up to remove the top right corner of the battery from the front panel assembly.

  • If battery resistance is encountered due to adhesive, use the flat end of a spudger to run in between the battery and the front panel assembly.

  • Do not completely detach the battery just yet, doing so can cause damage to the red and blue cables loacted at the bottom of the battery.

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Starting at the bottom left side of the battery, gently remove the green tape. Salvage the green tape if the replacement battery does not include one.
  • Starting at the bottom left side of the battery, gently remove the green tape.

  • Salvage the green tape if the replacement battery does not include one.

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Run the spudger under the battery to disconnect the red and blue cable connector from the circuit. Lift the battery towards you, away from the front panel. Lift the battery towards you, away from the front panel.
  • Run the spudger under the battery to disconnect the red and blue cable connector from the circuit.

  • Lift the battery towards you, away from the front panel.

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Slightly apply pressure and move the blue plastic opening tool downwards to pop the metallic rectangular connector from its socket on the mother board. Slightly apply pressure and move the blue plastic opening tool downwards to pop the metallic rectangular connector from its socket on the mother board. Slightly apply pressure and move the blue plastic opening tool downwards to pop the metallic rectangular connector from its socket on the mother board.
  • Slightly apply pressure and move the blue plastic opening tool downwards to pop the metallic rectangular connector from its socket on the mother board.

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Slightly apply pressure and move the blue plastic opening tool downwards to pop the gold rectangular connector from its socket on the mother board. Slightly apply pressure and move the blue plastic opening tool downwards to pop the gold rectangular connector from its socket on the mother board. Slightly apply pressure and move the blue plastic opening tool downwards to pop the gold rectangular connector from its socket on the mother board.
  • Slightly apply pressure and move the blue plastic opening tool downwards to pop the gold rectangular connector from its socket on the mother board.

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Slightly apply pressure and move the blue plastic opening tool downwards to pop the gold square connector from its socket on the mother board. Slightly apply pressure and move the blue plastic opening tool downwards to pop the gold square connector from its socket on the mother board. Slightly apply pressure and move the blue plastic opening tool downwards to pop the gold square connector from its socket on the mother board.
  • Slightly apply pressure and move the blue plastic opening tool downwards to pop the gold square connector from its socket on the mother board.

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Using the spudger gently wedge the blue wire out of its compartment. Using the spudger gently wedge the blue wire out of its compartment. Using the spudger gently wedge the blue wire out of its compartment.
  • Using the spudger gently wedge the blue wire out of its compartment.

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Remove two 2 mm #000 Phillips screws securing the metallic charger port cover to both the logic board and the front panel.
  • Remove two 2 mm #000 Phillips screws securing the metallic charger port cover to both the logic board and the front panel.

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Squeeze the metal charger port cover piece with the tweezers to gently lift it from it's place. Squeeze the metal charger port cover piece with the tweezers to gently lift it from it's place. Squeeze the metal charger port cover piece with the tweezers to gently lift it from it's place.
  • Squeeze the metal charger port cover piece with the tweezers to gently lift it from it's place.

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Carefully insert the flat end of the blue plastic opening tool under the black plastic fastener and lift. Rotate your tablet counter clockwise to facilitate the process. Rotate your tablet counter clockwise to facilitate the process.
  • Carefully insert the flat end of the blue plastic opening tool under the black plastic fastener and lift.

  • Rotate your tablet counter clockwise to facilitate the process.

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Squeeze the golden cable with the tweezers and gently pull the cable to the left to free the end of the golden cable. The golden cable is delicate so use gentle force.
  • Squeeze the golden cable with the tweezers and gently pull the cable to the left to free the end of the golden cable.

  • The golden cable is delicate so use gentle force.

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Remove three 2 mm #000 Phillips screws securing the mother board to the  front panel.
  • Remove three 2 mm #000 Phillips screws securing the mother board to the front panel.

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Using your hands, hold the opposite ends of the mother board corners, and lift. Using your hands, hold the opposite ends of the mother board corners, and lift.
  • Using your hands, hold the opposite ends of the mother board corners, and lift.

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Conclusion

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

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Ofelia Cruz

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CSU Fullerton, Team 1-3, Bruce Fall 2015 Member of CSU Fullerton, Team 1-3, Bruce Fall 2015

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