iPhone 6s Battery replacement repair guide

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

  • iPhone 6s
  • 15 Steps
  • Easy
  • 30 min.
Go to the guide

Introduction

In this guide, we show you how to replace your iPhone 6s’ defective battery on your own. This repair can help if your iPhone 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

  • Hartplastik-Plektren

    Hartplastik-Plektren

    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
  • Tweezers

    Tweezers

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

    €16.00 at the iDoc store
  • Plastic prying tool

    Plastic prying tool

    You need a flat plastic prying tool to disconnect the various plugs and connectors.

    €1.00 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
  • Pentalobe PL1 screwdriver

    Pentalobe PL1 screwdriver

    You need the right screwdriver for removing pentalobe PL1 screws.

    €10.00 at the iDoc store
  • Phillips PH00 screwdriver

    Phillips PH00 screwdriver

    You need the right screwdriver for removing PH00 screws.

    €10.00 at the iDoc store

Required replacement part

  • iPhone 6s Akku inklusive Klebestreifen

    iPhone 6s Akku inklusive Klebestreifen

    Ersetze ihn durch einen neuen iPhone 6s Akku, der zusammen mit einem Satz Klebestreifen zur Fixierung geliefert wird. Der leistungsstarke neue Akku hilft, wenn das Smartphone bei starker Belastung abstürzt, da die Spannung temporär abfällt, wenn sich dein iPhone 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.

    €19.00 at the iDoc store
  • iPhone 6s Kleberahmen für Display Schwarz

    iPhone 6s Kleberahmen für Display Schwarz

    Wasserschäden sind bei älteren iPhone-Modellen ein häufiges Problem. Im iPhone 6s sind Dichtungen verbaut, die das Handy besser vor Spritzwasser schützen. Wenn du dein iPhone allerdings einmal öffnest, könnten Flüssigkeiten eindringen. Dein iPhone 6s wird wohl nie absolut wasserfest sein, aber mit diesem Kleberahmen hat es wieder eine wirksame Barriere, die Feuchtigkeit von seinem Inneren fernhält.

    €3.00 at the iDoc store
  • iPhone 6s Kleberahmen für Display Weiß

    iPhone 6s Kleberahmen für Display Weiß

    Wasserschäden sind bei älteren iPhone-Modellen ein häufiges Problem. Im iPhone 6s sind Dichtungen verbaut, die das Handy besser vor Spritzwasser schützen. Wenn du dein iPhone allerdings einmal öffnest, könnten Flüssigkeiten eindringen. Dein iPhone 6s wird wohl nie absolut wasserfest sein, aber mit diesem Kleberahmen hat es wieder eine wirksame Barriere, die Feuchtigkeit von seinem Inneren fernhält.

    €3.00 at the iDoc store
Show all replacement parts for the iPhone 6s 

Replacement parts and tools for this repair

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

iPhone 6s Akku Reparaturset

Ersetze ihn mithilfe dieses Reparatursets, das auch Klebestreifen beinhaltet, die für einen festen Halt deines neuen Akkus...

for €34.00

Getting started

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

15 steps
  1. Turning off your Device

    iPhone 6s - Turning off your Device 01
    iPhone 6s - Turning off your Device 02
    1. Turn your iPhone off completely to avoid damaging it during the repair. Press the standby button for about three seconds until the slider appears.
    2. Wipe it from left to right. Now your iPhone will shut down completely, which can take about ten seconds.
  2. Removing the enclosure screws

    iPhone 6s - Removing the enclosure screws 01
    1. You need a pentalobe screwdriver to open the iPhone 6s.
    2. Remove the two pentalobe screws at the bottom of the enclosure. They are located to the right and left of the Lightning connector. Put the screws in the same container.
      2 x 3.8 mm pentalobe screw
  3. Lifting the display

    iPhone 6s - Lifting the display 01
    iPhone 6s - Lifting the display 02
    iPhone 6s - Lifting the display 03
    iPhone 6s - Lifting the display 04
    1. Put your iPhone 6s on a soft, clean surface to avoid scratching the back.
    2. To lift the front panel, you need a suction cup, a hard plastic pick and a heat gun. If the screen is severely cracked, cover all of it with packing tape before you continue.
    3. The screen is lightly glued to the frame. Use a heat gun to heat the outer edges of the display to about 60°C (140°F).
    4. Place the suction cup over the Home button (if possible) or next to it. While lifting the screen with the suction cup, insert the hard plastic pick between the aluminum frame and the display frame and press down the aluminum frame. Also use the hard plastic pick to raise the screen. This usually takes several attempts.
    5. As soon as you can lift the screen a few millimeters, you have to carefully work your way around the outside until it’s loosened on both sides.
      If necessary, heat the outer edges of the display a few times.
  4. Disconnecting the battery contact

    iPhone 6s - Disconnecting the battery contact 01
    iPhone 6s - Disconnecting the battery contact 02
    iPhone 6s - Disconnecting the battery contact 03
    1. Use a Phillips screwdriver to remove the Phillips screws on the battery connector. Then lift the cover. Put all the parts in the same container.
      1 x 2.2 mm Phillips screw
      1 x 2.9 mm Phillips screw
    2. Now carefully lift the battery connector by inserting the ESD spudger slightly below the connector. If you don’t have a spudger, you can also try using your fingernail.
  5. Disconnecting the display connectors

    iPhone 6s - Disconnecting the display connectors 01
    iPhone 6s - Disconnecting the display connectors 02
    iPhone 6s - Disconnecting the display connectors 03
    1. First remove the four Phillips screws from the silver cover. Put the screws in the same container. Then lift the cover to remove it.
      3 x 1.3 mm Phillips screw
      1 x 2.9 mm Phillips screw
    2. Disconnect the following three overlapping connectors in the order shown below. Be very careful. Carefully place the pointed tip of the spudger below the contact and lift it up.
      Front camera/sensor/earpiece/ambient microphone
      Touch ID cable
      Display
  6. Removing the Taptic Engine

    iPhone 6s - Removing the Taptic Engine 01
    iPhone 6s - Removing the Taptic Engine 02
    1. Unscrew the two screws that hold the Taptic Engine in place.
      2 x 1.5 mm Phillips screw
    2. Now remove the Taptic Engine.
  7. Removing the battery

    iPhone 6s - Removing the battery 01
    iPhone 6s - Removing the battery 02
    iPhone 6s - Removing the battery 03
    iPhone 6s - Removing the battery 04
    1. The battery is attached to the enclosure by two adhesive strips. Use a pair of tweezers or a laboratory spatula to detach them.
    2. Now pull the adhesive strips off to one side very slowly. Hold the adhesive strips as flat as possible at the level of the iPhone.
    3. Now simply remove the battery.
  8. Prepare the battery

    iPhone 6s - Prepare the battery 01
    iPhone 6s - Prepare the battery 02
    iPhone 6s - Prepare the battery 03
    iPhone 6s - Prepare the battery 04
    iPhone 6s - Prepare the battery 05
    iPhone 6s - Prepare the battery 06
    iPhone 6s - Prepare the battery 07
    1. Attach new adhesive strips to the underside of the battery. Otherwise, the battery will move inside your device and be damaged.
    2. First remove the blue protective film from the adhesive strips.
    3. Stick the adhesive strips to the back of the battery. Make sure that the tabs overlap.
    4. Remove the small blue films from the black tabs and stick them to the edge of the battery.
    5. Remove the last protective film.


  9. Installing the battery

    iPhone 6s - Installing the battery 01
    1. Now put the battery back in the iPhone and connect the connector.
  10. Installing the Taptic Engine

    iPhone 6s - Installing the Taptic Engine 01
    iPhone 6s - Installing the Taptic Engine 02
    1. Put the Taptic Engine back where it was originally.
    2. Fasten the Taptic Engine with the screws again.
      2 x 1.5 mm Phillips screw
  11. Connecting the display

    iPhone 6s - Connecting the display 01
    iPhone 6s - Connecting the display 02
    iPhone 6s - Connecting the display 03
    1. Reconnect the connectors. Connecting the display connector generally takes a few tries. Be very careful to avoid bending the connector.
      Front camera/sensor/earpiece/ambient microphone
      Touch ID cable
      Display
    2. Start your iPhone as soon as the connectors are securely attached. Check the function of the LCD, touchscreen, proximity sensor, front camera and earpiece.
      If the display connectors aren’t connected properly, stripes will appear on the display or parts of the touchscreen won’t work.
    3. Now install the cover and screw it in place.
      3 x 1.3 mm Phillips screw
      1 x 2.9 mm Phillips screw
  12. Connecting the battery

    iPhone 6s - Connecting the battery 01
    iPhone 6s - Connecting the battery 02
    iPhone 6s - Connecting the battery 03
    1. Connect the battery connector.
    2. Put on the silver cover and screw it in place.
      1 x 2,9 mm Phillips-Schraube
      1 x 2,2 mm Phillips-Schraube
  13. Attaching the display

    iPhone 6s - Attaching the display 01
    1. Then carefully fold down the screen. Make sure that the edge on the upper part of the screen where the cables are clicks into place properly. Now carefully push the screen on toward the Home button until it is properly installed in the frame.
  14. Fastening the enclosure screws

    iPhone 6s - Fastening the enclosure screws 01
    1. Now screw in the two pentalobe screws at the bottom of the enclosure.
      2 x 3.8 mm pentalobe screw
  15. Setting the time

    iPhone 6s - Setting the time 01

    When the battery is removed from the device, the iPhone loses the time and sets itself to 1:00 a.m. on 1/1/1970. You could have trouble connecting to the cellular network if the time isn’t set.

    After a repair, complete the following steps:

    1. Synchronize your iPhone with iTunes or connect to a WLAN network and wait until the time is set.
    2. Remove the SIM tray with the SIM card and reinsert it.
    3. Activate airplane mode on the device and then deactivate airplane mode.
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