Samsung Galaxy S7 - Removing the motherboard

Remove the motherboard after water damage.

  • Galaxy S7
  • 21 Steps
  • Medium
  • 45 min.
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Introduction

In this repair guide, we show you how to remove your Galaxy S7’s motherboard on your own. You need to remove the PCB if you want to clean it after water damage.

Required tools

  • Hard Plastic Pick

    Hard Plastic Pick

    You need a flat but stable tool such as a pick to pry out parts that are glued in place.

    €1.00 at the iDoc store
  • Heat gun

    Heat gun

    You can use a heat gun to heat parts that are glued on so they’re easier to remove. In most cases, you can also use a hairdryer.

    from €14.99 on Amazon
  • For storing screws

    For storing screws

    We recommend storing your screws so you don’t mix up the various screws and small parts.

    €10.00 at the iDoc store
  • Suction cup

    Suction cup

    A suction cup is perfect for lifting smooth surfaces such as displays or rear glass panels.

    €2.00 at the iDoc store
  • Tweezers

    Tweezers

    We recommend using tweezers to remove screws and various small parts from your device.

    €14.00 at the iDoc store
  • Phillips PH00 screwdriver

    Phillips PH00 screwdriver

    You need the right screwdriver for removing PH00 screws.

    €9.00 at the iDoc store
Show all replacement parts for the Galaxy S7 

Replacement parts and tools for this repair

Our tools plus the right spare part help you fix your device easily.

PH00 Toolkit

Whatever’s wrong with your phone, our tool kit can help you fix it. Each repair kit includes a steel laboratory spatula, an...

for €25.00

Getting started

If you get stuck or have questions, you can post a comment for each step. We’d be happy to help.

21 steps
  1. Switching off your device

    Galaxy S7 - Switching off your device 01
    Galaxy S7 - Switching off your device 02
    1. Turn off your device by holding down the power button until the “Power off” option appears.
    2. Use your finger to confirm that you want to shut down your Galaxy S7 and wait until the screen goes blank.
    Comments
  2. Removing the SIM and microSD cards

    Galaxy S7 - Removing the SIM and microSD cards 01
    1. Use the SIM tool to eject the SIM tray from your device and then remove the tray with your fingers.
    Comments
  3. Removing the back cover

    Galaxy S7 - Removing the back cover 01
    Galaxy S7 - Removing the back cover 02
    Galaxy S7 - Removing the back cover 03
    Galaxy S7 - Removing the back cover 04
    1. The glass back cover is glued to the chassis. Remove the back cover by putting on a suction cup and pulling on it. Also use a pick to push against the frame. Heat your device with hot air beforehand so the glue will be easier to detach.
    2. As soon as a gap appears between the back cover and the chassis, you can insert the pick between the two parts.
    3. The back cover is painted on the inside. Remove any adhesive residue carefully to avoid scratches or cracks.

    4. Use more picks to disconnect all the corners one after the other.
    5. Remove the back cover as soon as all the glue is detached.
    Comments
  4. Removing the screws

    Galaxy S7 - Removing the screws 01
    Galaxy S7 - Removing the screws 02
    1. Remove the twelve screws that hold the antennas and the speaker in place.
      12 x 3.3 mm PH00 Phillips screws
    2. Remove the yellow adhesive strip.
    Comments
  5. Removing the upper antenna

    Galaxy S7 - Removing the upper antenna 01
    Galaxy S7 - Removing the upper antenna 02
    1. Disconnect the upper antenna from the enclosure. The antenna is hooked onto the enclosure. Start at the upper right corner.
    2. As soon as the antenna has come off on the right side, carefully pull it up in the middle so the left side will come off, too.
    3. Remove the antenna from the enclosure.
    Comments
  6. Removing the middle antenna

    Galaxy S7 - Removing the middle antenna 01
    1. Pull the middle antenna out of the enclosure. Note that it’s hooked onto the lower antenna.
    Comments
  7. Removing the speaker

    Galaxy S7 - Removing the speaker 01
    Galaxy S7 - Removing the speaker 02
    1. Disconnect the speaker by using the tweezers to unhook it on the left side.
    2. Remove the speaker from the enclosure.
    Comments
  8. Disconnecting the battery

    Galaxy S7 - Disconnecting the battery 01
    1. Using the spudger, carefully disconnect the battery contact from the motherboard. Carefully pry the contact out of the socket.
    Comments
  9. Removing the front camera

    Galaxy S7 - Removing the front camera 01
    Galaxy S7 - Removing the front camera 02
    1. Using the spudger, carefully disconnect the front camera’s contact from the motherboard.
    2. Remove the front camera from the enclosure.
    Comments
  10. Disconnecting all the contacts from the motherboard

    1. Using the spudger, carefully disconnect the following contacts from the motherboard.
      Volume rocker switch
      Proximity sensor
      Earpiece
      Display
      Power button
      Antenna cable
      Sensor buttons
    Comments
  11. Removing the motherboard

    Galaxy S7 - Removing the motherboard 01
    Galaxy S7 - Removing the motherboard 02
    Galaxy S7 - Removing the motherboard 03
    Galaxy S7 - Removing the motherboard 04
    1. The bottom of the motherboard (arrow) is connected to the USB port.
    2. Carefully tilt the board up by 180° so you can get at the contact. Don’t pull too hard on the board.
    3. Using the spudger, carefully disconnect the contact from the PCB.
    4. Remove the board.
    There's a small plastic pin in the opening of the SIM tray. Make sure it doesn't fall out.
    Comments
  12. Installing the motherboard

    Galaxy S7 - Installing the motherboard 01
    Galaxy S7 - Installing the motherboard 02
    Galaxy S7 - Installing the motherboard 03
    1. Turn the board upside down and put it at the lower end of the enclosure to reconnect the USB port’s contact.
    2. Connect the contact so you can hear it click into the socket.
    3. Fold the board over so you can put it in the enclosure.
    Comments
  13. Connecting all the contacts from the motherboard

    1. Connect the following contacts to the motherboard.
      Volume rocker switch
      Proximity sensor
      Earpiece
      Display
      Power button
      Antenna cable
      Sensor buttons
    Comments
  14. Installing the front camera

    Galaxy S7 - Installing the front camera 01
    Galaxy S7 - Installing the front camera 02
    1. Put the front camera in the recess in the upper edge of the enclosure.
    2. Connect the camera to the motherboard. You have to hear the contact click into place.
    Comments
  15. Connecting the battery

    Galaxy S7 - Connecting the battery 01
    1. Connect the battery to the motherboard. Press the contact into the socket on the motherboard until you hear it click into place.
    Comments
  16. Installing the speaker

    Galaxy S7 - Installing the speaker 01
    1. Put the speaker at the lower end of the enclosure.
    2. Press on the speaker with your fingers until it clicks into place in the enclosure.
    Comments
  17. Installing the middle antenna

    Galaxy S7 - Installing the middle antenna 01
    1. Put the antenna back in the enclosure after hooking it onto the lower antenna.
    2. Press on the antenna with your fingers until it clicks into place in the enclosure.
    Comments
  18. Installing the upper antenna

    Galaxy S7 - Installing the upper antenna 01
    1. Put the antenna back in the enclosure. First put it on the left side and then press it on firmly with your fingers.
    2. You should be able to hear the antenna click into place.
    Comments
  19. Fastening the screws

    Galaxy S7 - Fastening the screws 01
    Galaxy S7 - Fastening the screws 02
    1. Put the yellow adhesive strip back on.
    2. Attach everything using the screws.
      12 x 3.3 mm PH00 Phillips screws
    Comments
  20. Attaching the back cover

    Galaxy S7 - Attaching the back cover 01
    Galaxy S7 - Attaching the back cover 02
    1. Put the back cover back in its original position.
    2. Press the back cover on all over so the glue will stick.
    3. You can also heat your device with hot air and then clamp it or weight it down with a couple books so the glue will stick better.
    Comments
  21. Inserting the SIM and microSD cards

    Galaxy S7 - Inserting the SIM and microSD cards 01
    1. Insert the SIM tray back into your device. Make sure the tray is positioned properly.
    Comments
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