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

  • Werkzeugset iDoc

    Werkzeugset iDoc

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  • Werkzeugset iPhone

    Werkzeugset iPhone

    Damit du künftig alle großen und kleinen Probleme mit deinem iPhone selbst lösen kannst, haben wir für dich ein umfassendes Werkzeugset zusammengestellt. Von Akku-Spudger und Saugnapf bis hin zu vier verschiedenen Schraubendrehern für die diversen, speziell für iPhones entwickelten Schrauben, umfasst das Werkzeugset alle nötigen Hilfsmittel. Das Set ergänzen wir durch unsere iDoc-Magnetmatte, die du während der Reparatur dazu nutzen kannst, die Übersicht unter all den Schrauben und Kleinteilen zu bewahren. Alle elf Tools kommen in der hochwertigen iDoc Werkzeugtasche. Damit geht kein Reparaturequipment verloren. Bei der Zusammenstellung unserer Werkzeugsets ist uns besonders wichtig, dass du es so komfortabel wie möglich hast. Deshalb haben wir für das iPhone Reparatur-Set nur Werkzeuge in Profi-Qualität ausgewählt, sodass du dich nicht mit schlechtem Equipment quälen musst. Viel Erfolg bei deiner nächsten Reparatur!

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Required replacement part

  • Samsung Galaxy S7 Akku

    Samsung Galaxy S7 Akku

    Ersetze ihn durch einen neuen Galaxy S7 Akku. Der leistungsstarke neue Akku hilft, wenn das Smartphone bei starker Belastung abstürzt, da die Spannung temporär abfällt, wenn sich dein Galaxy S7 bei Kälte ausschaltet, sich nicht mehr einschalten oder laden lässt oder wenn die Akku-Laufzeit sehr gering ist. Achtung: Um optimale Leistung zu erhalten, solltest du den Akku einmal komplett entladen (Video abspielen und das Blitzlicht einschalten) und dann vollständig aufladen. Sobald du den neuen Akku eingebaut hast, kannst du viel länger telefonieren, Musik hören, Videos gucken oder was auch immer du auf deinem Smartphone machen willst. Wie immer haben wir das Ersatzteil getestet, um sicherzustellen, dass es unserem hohen Qualitäts- und Funktionalitätsstandard gerecht wird. So kannst du sicher sein, dass dein Akku die volle Kapazität hat.

    €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 Akku

Ersetze ihn durch einen neuen Galaxy S7 Akku. Der leistungsstarke neue Akku hilft, wenn das Smartphone bei starker Belastung...

Werkzeugset Samsung

Ganz gleich, welches Problem dein Handy hat - mit unserem Werkzeugset kannst du es bestimmt beheben. Dieses Reparaturset umfasst jeweils einen...

together for €78.00

Getting started

If you get stuck or have questions, you can post a comment for each step. 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. 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.
  13. 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.
  14. 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.
  15. 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
  16. 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.
  17. 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.
  18. 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.
  19. 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.
  20. 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.
  21. 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
  22. 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.
  23. 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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