Samsung Galaxy S7 - Replacing the battery

The battery life is low. Your Galaxy S7 keeps crashing or won’t charge.

  • Galaxy S7
  • 23 Steps
  • Difficult
  • 60 min.
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Introduction

In this repair guide, we show you how to replace your Galaxy S7's defective battery on your own. This repair can help if your smartphone crashes during heavy use because the voltage temporarily drops, you can no longer charge it or turn it on, or the battery life is very low.

Required tools

  • iDoc Toolkit, 21 pieces

    iDoc Toolkit, 21 pieces

    Do you need to repair your smartphone? This kit includes all the tools you need for professional-quality repairs, from the ESD spudger and suction cup, to screwdrivers and tweezers, as well as the iDoc magnetic pad that holds your screws and small parts in place while you work. Not sure what goes where? Don’t worry – our detailed repair guides tell you what tool to use for each step.

    €69.00 at the iDoc store
  • iPhone Toolkit

    iPhone Toolkit

    We've put together a complete set of tools so you can solve all the big and small problems with your iPhone yourself. From a spudger and vacuum cup to four different screwdrivers for the various screws designed specifically for iPhones, the toolkit includes all the tools you need for any repair which will come up. The set is complemented by our iDoc magnetic mat, which you can use during the repair to maintain an overview of all the screws and small pieces. All tools come in the high-quality iDoc tool case. No repair equipment gets lost. When putting together our tool sets, it's especially important to us that you enjoy your time as much as possible. That's why we've only selected professional-quality tools for the iPhone repair kit, so you don't have to struggle with bad equipment. Good luck with your next repair!

    €49.00 at the iDoc store

Required replacement part

  • Samsung Galaxy S7 Battery

    Samsung Galaxy S7 Battery

    Replace it with a new Galaxy S7 battery. This powerful new battery can help if your Galaxy S7 crashes during heavy use because the voltage temporarily drops, your phone switches off when it gets cold, you can no longer charge it or turn it on, or the battery life is very low. Please note: To ensure optimal performance, you should completely discharge the battery one time (play a video and turn on the flash) and then charge it all the way. Once you’ve installed your new battery, you can talk, listen to music, watch videos or do whatever you want on your phone for much longer. As always, we’ve tested this replacement part to make sure it meets our high standards for quality and functionality. That way, you know you’re getting a battery with full capacity.

    €29.00 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.

Samsung Galaxy S7 Battery

Replace it with a new Galaxy S7 battery. This powerful new battery can help if your Galaxy S7 crashes during heavy use because...

Samsung Toolkit, 16 pieces

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

together for €78.00

Getting started with the repair of your Galaxy S7

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

23 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.
  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.
  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.
  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.
  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.
  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.
  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.
  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.
  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.
  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
  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.
  12. The right tools for your repair

    With the right tools, you will succeed in any repair. In our store you will find a large selection of professional quality tools.
    VIEW NOW
  13. Removing the battery

    Galaxy S7 - Removing the battery 01
    Galaxy S7 - Removing the battery 02
    Galaxy S7 - Removing the battery 03
    Galaxy S7 - Removing the battery 04

    Be very careful during this step. Use a flat, blunt tool like the round end of the steel laboratory spatula to avoid damaging the battery.

    1. The battery is really glued to the enclosure, so be very careful when you’re removing it. Using your tool, carefully detach the battery from the enclosure. First insert your tool on the side between the battery and the enclosure and use it as a lever.
    2. Repeat this process on the opposite side of the battery.
    3. Then carefully insert your tool below the battery and detach the glue under it.
    4. Remove the battery from the enclosure.
  14. Inserting the battery

    Galaxy S7 - Inserting the battery 01
    Galaxy S7 - Inserting the battery 02
    1. Put the battery in the enclosure. It fits perfectly into the compartment in the middle of the enclosure.
    2. Press the battery against the enclosure so the glue will stick better.
  15. 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.
  16. 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
  17. 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.
  18. 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.
  19. 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.
  20. 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.
  21. 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.
  22. 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
  23. 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.
  24. 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.
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