Apple iPhone 6s Plus - Replacing the battery

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

  • iPhone 6s Plus
  • 23 Steps
  • Easy
  • 45 min.
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Introduction

In this guide, we show you how to replace your iPhone 6s Plus’ 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

  • Tool for prying out batteries

    Tool for prying out batteries

    You have to use a very stable tool to pry out the battery. At the same time, it has to be flat enough to insert below the battery.

    €1.00 at the iDoc store
  • 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 Plus Akku inklusive Klebenstreifen

    iPhone 6s Plus Akku inklusive Klebenstreifen

    Ersetze ihn durch einen neuen iPhone 6s Plus 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
Show all replacement parts for the iPhone 6s Plus 

Replacement parts and tools for this repair

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

iPhone 6s Plus 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.

23 steps
  1. Turning off your Device

    iPhone 6s Plus - Turning off your Device 01
    iPhone 6s Plus - 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 Plus - Removing the enclosure screws 01
    1. You need a pentalobe screwdriver to open the iPhone 6s Plus.
    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 3.3 mm pentalobe screw
  3. Lifting the display

    iPhone 6s Plus - Lifting the display 01
    iPhone 6s Plus - Lifting the display 02
    iPhone 6s Plus - Lifting the display 03
    iPhone 6s Plus - Lifting the display 04
    1. Put your iPhone 6s Plus on a soft, clean surface to avoid scratching the back.
    2. To lift the display, 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.Risk of injury due to broken glass.
    3. The screen is lightly glued to the frame. Use a heat gun to heat the edges of the display to about 60°C (140°F).
    4. Place the suction cup over the Home button if possible (otherwise, put it next to the button). While lifting the display with the suction cup, use the hard plastic pick to press down the aluminum frame. At the same time, insert the hard plastic pick between the aluminum frame and the display. This usually takes several attempts.
    5. Once a little gap has opened up between these two parts, you can open it further by slightly turning the pick.
    6. As soon as you can lift the display 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 Plus - Disconnecting the battery contact 01
    iPhone 6s Plus - Disconnecting the battery contact 02
    iPhone 6s Plus - Disconnecting the battery contact 03
    1. First, remove the two Phillips screws and take off the silver cover.
      1 x 2.0 mm Phillips screw
      1 x 2.9 mm Phillips screw
    2. Now use the spudger to carefully disconnect the lower connector for the battery contact, antenna and Lightning connector.
  5. Disconnecting the connectors

    iPhone 6s Plus - Disconnecting the connectors 01
    iPhone 6s Plus - Disconnecting the connectors 02
    iPhone 6s Plus - Disconnecting the connectors 03
    1. First remove the five Phillips screws from the silver cover. Put the screws in the same container. Then lift the cover to remove it.
      1 x 2.6 mm Phillips screw
      3 x 1.2 mm Phillips screw
      1 x 1.6 mm Phillips screw
    2. Disconnect the following three overlapping connectors in the order shown below. Be very careful. Place the pointed tip of the spudger very slightly below each contact and lift it up.
      Touch ID cable
      Front camera/sensor/earpiece/ambient microphone
      Display
  6. Removing the cover plate

    iPhone 6s Plus - Removing the cover plate 01
    iPhone 6s Plus - Removing the cover plate 02
    1. The Taptic Engine’s contact is under a plate. Remove the three screws from the plate.
      1 x 2.6 mm Phillips screw
      2 x 3.3 mm Phillips screw
    2. Remove the plate and put it with the screws.
  7. Removing the Taptic Engine

    iPhone 6s Plus - Removing the Taptic Engine 01
    iPhone 6s Plus - Removing the Taptic Engine 02
    iPhone 6s Plus - Removing the Taptic Engine 03
    1. Disconnect the contact.
    2. Unscrew the two screws that hold the Taptic Engine in place.
      1 x 2.1 mm Phillips screw
      1 x 3.0 mm Phillips screw
    3. Remove the Taptic Engine.
  8. Removing the speaker

    iPhone 6s Plus - Removing the speaker 01
    iPhone 6s Plus - Removing the speaker 02
    iPhone 6s Plus - Removing the speaker 03
    iPhone 6s Plus - Removing the speaker 04
    iPhone 6s Plus - Removing the speaker 05
    iPhone 6s Plus - Removing the speaker 06
    1. Remove the following seven Phillips screws that hold the speaker in place. Put the screws in different containers so you can easily identify them later.
      2 x 2.2 mm Phillips screw with large head
      2 x 2.6 mm Phillips screw
      2 x 1.5 mm Phillips screw
      1 x 2.4 mm Phillips screw (angled)
    2. Carefully pull the antenna cable to one side and put the cable guide with the 2.6 mm Phillips screws.
    3. Using the steel laboratory spatula, carefully detach the antenna from the speaker.
    4. Use the flat end of the spudger as a lever to detach the speaker.
    5. Remove the speaker.
  9. Removing the Lightning connector screws

    iPhone 6s Plus - Removing the Lightning connector screws 01
    iPhone 6s Plus - Removing the Lightning connector screws 02
    iPhone 6s Plus - Removing the Lightning connector screws 03
    iPhone 6s Plus - Removing the Lightning connector screws 04
    iPhone 6s Plus - Removing the Lightning connector screws 05
    1. Remove the following four Phillips screws. Put the screws in different containers so you can easily identify them later.
      1 x 3.0 mm Phillips screw
      1 x 1.1 mm Phillips screw (angled)
      1 x 1.8 mm Phillips screw
      1 x 1.3 mm Phillips screw
    2. Use the pointed tip of the spudger to detach the headphone jack and the two gold microphones.
  10. Removing the Lightning connector

    iPhone 6s Plus - Removing the Lightning connector 01
    iPhone 6s Plus - Removing the Lightning connector 02
    iPhone 6s Plus - Removing the Lightning connector 03
    iPhone 6s Plus - Removing the Lightning connector 04
    iPhone 6s Plus - Removing the Lightning connector 05
    1. Using the steel laboratory spatula, carefully disconnect the Lightning connector.
    2. Insert the steel spatula under various parts of the flexible flat cable.
    3. Carefully remove the ribbon cable using your fingers or the tweezers.
  11. Removing the battery

    iPhone 6s Plus - Removing the battery 01
    iPhone 6s Plus - Removing the battery 02
    iPhone 6s Plus - Removing the battery 03
    iPhone 6s Plus - Removing the battery 04
    iPhone 6s Plus - Removing the battery 05
    iPhone 6s Plus - Removing the battery 06
    iPhone 6s Plus - Removing the battery 07
    1. The battery is attached to the enclosure by three adhesive strips. Use the tweezers to detach the three black ends of the adhesive strips from the battery.
    2. Pull the adhesive strips off very slowly and carefully. If you pull them too quickly, the adhesive strips could tear.
    3. Remove the battery.
  12. Preparing the new battery

    iPhone 6s Plus - Preparing the new battery 01
    iPhone 6s Plus - Preparing the new battery 02
    iPhone 6s Plus - Preparing the new battery 03
    1. Remove the large blue piece of backing film from the adhesive strips.
    2. Attach the adhesive strips to the back of the battery and press them on firmly.
    3. Pull off the red protective film.
  13. Installing the battery

    iPhone 6s Plus - Installing the battery 01
    iPhone 6s Plus - Installing the battery 02
    iPhone 6s Plus - Installing the battery 03
    iPhone 6s Plus - Installing the battery 04
    iPhone 6s Plus - Installing the battery 05
    1. Position the battery in your iPhone. Don’t forget that the battery will stick as soon as the adhesive strips touch the back cover.
    2. Remove the blue protective film from the ends of the adhesive strips.
    3. Fold over the ends of the adhesive strips and stick them to the battery.
  14. Installing the Lightning connector

    iPhone 6s Plus - Installing the Lightning connector 01
    iPhone 6s Plus - Installing the Lightning connector 02
    iPhone 6s Plus - Installing the Lightning connector 03
    iPhone 6s Plus - Installing the Lightning connector 04
    iPhone 6s Plus - Installing the Lightning connector 05
    iPhone 6s Plus - Installing the Lightning connector 06
    • 1 × Antenna connection
    1. Put the Lightning connector in its original position.
    2. Press the flexible flat cable on firmly so it will stick better.
    3. Make sure the two gold microphones, the Lightning connector and the headphone jack are fitted properly in the frame.
    You have to reuse the old antenna cable and connect it to the lightning connector's flex cable (see image). Carefully snap it onto its socket.
  15. Fastening the Lightning connector screws

    iPhone 6s Plus - Fastening the Lightning connector screws 01
    iPhone 6s Plus - Fastening the Lightning connector screws 02
    1. Fasten the Lightning connector with the following four Phillips screws.
      1 x 3.0 mm Phillips screw
      1 x 1.1 mm Phillips screw (angled)
      1 x 1.8 mm Phillips screw
      1 x 1.3 mm Phillips screw
  16. Installing the speaker

    iPhone 6s Plus - Installing the speaker 01
    iPhone 6s Plus - Installing the speaker 02
    iPhone 6s Plus - Installing the speaker 03
    iPhone 6s Plus - Installing the speaker 04
    iPhone 6s Plus - Installing the speaker 05
    1. Position the speaker in the back cover of the iPhone 6s Plus. Make sure the antenna cables are positioned properly in the guides.
    2. Stick the antenna to the speaker.
    3. Use the guide to clamp the antenna cable against the speaker.
    4. Fasten the speaker with the following seven Phillips screws.
      2 x 2.2 mm Phillips screw with large head
      2 x 2.6 mm Phillips screw
      2 x 1.5 mm Phillips screw
      1 x 2.4 mm Phillips screw (angled)
  17. Installing the Taptic Engine

    iPhone 6s Plus - Installing the Taptic Engine 01
    iPhone 6s Plus - Installing the Taptic Engine 02
    iPhone 6s Plus - Installing the Taptic Engine 03
    1. Put the Taptic Engine in the original position.
    2. Fasten the Taptic Engine with the two screws.
      1 x 2.1 mm Phillips screw
      1 x 3.0 mm Phillips screw
    3. Connect the contact to the flexible flat Lightning cable.
  18. Installing the cover plate

    iPhone 6s Plus - Installing the cover plate 01
    iPhone 6s Plus - Installing the cover plate 02
    1. Put the plate back on.
    2. Fasten the plate with the three screws.
      1 x 2.6 mm Phillips screw
      2 x 3.3 mm Phillips screw
  19. Connecting the display

    iPhone 6s Plus - Connecting the display 01
    iPhone 6s Plus - Connecting the display 02
    iPhone 6s Plus - Connecting the display 03

    In the picture, the battery is already connected by mistake. Do not connect the battery until the display is connected.

    1. Reconnect the connectors. Connecting the display connector sometimes takes a few tries. Be very careful to avoid bending the connector.
      Touch ID cable
      Front camera/sensor/earpiece/ambient microphone
      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. Install the cover and screw it in place.
      1 x 2.6 mm Phillips screw
      3 x 1.2 mm Phillips screw
      1 x 1.6 mm Phillips screw
  20. Connecting the cables

    iPhone 6s Plus - Connecting the cables 01
    iPhone 6s Plus - Connecting the cables 02
    iPhone 6s Plus - Connecting the cables 03
    1. Reconnect the antenna, Lightning connector, battery and logic board.
    2. Then install the silver cover again.
    3. Screw the cover onto the logic board.
      1 x 2.0 mm Phillips screw
      1 x 2.9 mm Phillips screw
  21. Attaching the display

    iPhone 6s Plus - Attaching the display 01
    1. Then carefully fold down the display. The display has to click into place properly at the upper edge where the connection cables are.
    2. Carefully press on the display toward the Home button until it’s entirely in the frame. The display has to be flush with the frame.
  22. Fastening the enclosure screws

    iPhone 6s Plus - Fastening the enclosure screws 01
    1. Now screw in the two pentalobe screws at the bottom of the enclosure.
      2 x 3.3 mm pentalobe screw
  23. Setting the time

    iPhone 6s Plus - 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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