iPhone 7 battery replacement guide

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

  • iPhone 7
  • 18 Steps
  • Medium
  • 30 min.
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Introduction

In this guide, we show you how to replace your iPhone 7’s defective battery on your own.This repair can help if your iPhone 7 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.
Back up all your data before the repair, and touch something like a radiator to get rid of any static charges.

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
  • 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
  • Y-type Y000 screwdriver

    Y-type Y000 screwdriver

    You need the right screwdriver for removing Y-type screws.

    €10.00 at the iDoc store

Required replacement part

  • iPhone 7 Akku inklusive Klebenstreifen

    iPhone 7 Akku inklusive Klebenstreifen

    Ersetze ihn durch einen neuen iPhone 7 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 7 

Replacement parts and tools for this repair

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

iPhone 7 Akku Reparaturset

Mithilfe dieses Reparatursets, kannst du deinen Akku selbst wechseln. Für einen optimalen Halt enthält das Set auch...

for €39.00

Getting started

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

18 steps
  1. Switching off your device

    iPhone 7 - Switching off your device 01
    iPhone 7 - Switching off your device 02
    1. Turn your iPhone off completely to avoid damaging it during the repair. Press the Sleep/Wake button for about three seconds until the slider labeled “power off” appears.
    2. Swipe it from left to right. Now your iPhone will shut down completely, which can take about ten seconds.
  2. Removing the enclosure screws

    iPhone 7 - Removing the enclosure screws 01
    iPhone 7 - Removing the enclosure screws 02
    • 2 × 3,3 mm Pentalobe

    You need a pentalobe screwdriver (PL1) to open the iPhone 7.

    1. Remove the two pentalobe screws at the bottom of the enclosure. They’re to the right and left of the Lightning connector. Put the screws in the same section of your magnetic pad.
  3. Lifting the display

    iPhone 7 - Lifting the display 01
    iPhone 7 - Lifting the display 02
    iPhone 7 - Lifting the display 03
    iPhone 7 - Lifting the display 04
    iPhone 7 - Lifting the display 05
    iPhone 7 - Lifting the display 06
    iPhone 7 - Lifting the display 07
    1. Put your iPhone 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 glued to the frame. Use a heat gun to heat the outer edges of the display to about 60°C (140°F).

    If necessary, heat the outer edges of the display a few times. Don’t forget that the flexible flat cables for the display are on the side with the Sleep/Wake button. The display is also hooked onto the edge of the earpiece.

    1. 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. Because the display’s glued on, you have to slide the pick all around the iPhone between the aluminum frame and the display frame. Don’t stick the pick in too far on the side where the Sleep/Wake button is because that could damage the flexible flat display cables.
    2. Now use the pick to push the display so the tabs come out of the aluminum frame. Then you can fold the display over to the side.
    3. Set the display on the aluminum frame so you don’t stretch the flexible flat cables too much.

    Never fold the display further than 180°. It's best not to lay the display flat down, but to lean it against a stable object at an angle.

  4. Disconnecting the battery contact

    iPhone 7 - Disconnecting the battery contact 01
    iPhone 7 - Disconnecting the battery contact 02
    iPhone 7 - Disconnecting the battery contact 03
    iPhone 7 - Disconnecting the battery contact 04
    • 1 × 2,4 mm Y-Type
    • 3 × 1,0 mm Y-Type
    • Battery Connector

    Before starting the repair, disconnect the battery contact to prevent short circuits and avoid accidentally turning on your device during the repair.

    1. Use a Y-Type screwdriver (Y000) to remove the four Y-Type screws. Then take off the cover. Put all the parts in the same section of your magnetic pad.
    2. Now carefully lift off the battery contact by inserting a spudger slightly below the connector. If you don’t have a spudger, you can also try using your fingernail.
  5. Disconnecting the display contacts

    iPhone 7 - Disconnecting the display contacts 01
    iPhone 7 - Disconnecting the display contacts 02
    iPhone 7 - Disconnecting the display contacts 03
    • Display
    • Home Button
    1. Use the spudger to disconnect the contacts for the display and Home button.
  6. Disconnecting the FaceTime contact

    iPhone 7 - Disconnecting the FaceTime contact  01
    iPhone 7 - Disconnecting the FaceTime contact  02
    iPhone 7 - Disconnecting the FaceTime contact  03
    iPhone 7 - Disconnecting the FaceTime contact  04
    iPhone 7 - Disconnecting the FaceTime contact  05
    • 2 × 1,2 mm Phillips
    • Facetime Connector
    1. Use a Phillips screwdriver (PH00) to remove the two Phillips screws. Then take off the cover. Put all the parts in the same section of your magnetic pad.
    2. Using a spudger, carefully disconnect the FaceTime contact from the PCB.
    3. Now you can take off the display all the way.
  7. Removing the Taptic Engine

    iPhone 7 - Removing the Taptic Engine 01
    iPhone 7 - Removing the Taptic Engine 02
    iPhone 7 - Removing the Taptic Engine 03
    iPhone 7 - Removing the Taptic Engine 04
    iPhone 7 - Removing the Taptic Engine 05
    iPhone 7 - Removing the Taptic Engine 06
    • 2 × 1,9 mm Phillips
    • Taptic Engine
    • 3 × 1,5 mm Phillips
    1. Unscrew the two Phillips screws in the plastic cover using a Phillips screwdriver (PH00) and remove them.
    2. Use a spudger to disconnect the Taptic Engine’s contact.
    3. Use a Phillips screwdriver (PH00) to remove the three Phillips screws holding the Taptic Engine in place.
    4. Now remove the Taptic Engine.
  8. Removing the battery

    iPhone 7 - Removing the battery  01
    iPhone 7 - Removing the battery  02
    iPhone 7 - Removing the battery  03
    iPhone 7 - Removing the battery  04
    iPhone 7 - Removing the battery  05
    iPhone 7 - Removing the battery  06
    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. Hold onto the battery and iPhone when you pull off the last adhesive strip so the battery can’t fall out of the device.
    4. Now simply remove the battery.
  9. Preparing the battery

    iPhone 7 - Preparing the battery 01
    iPhone 7 - Preparing the battery 02
    iPhone 7 - Preparing the battery 03
    iPhone 7 - Preparing the battery 04
    iPhone 7 - Preparing the battery 05
    iPhone 7 - Preparing the battery 06
    1. Remove the big blue piece of protective film and center the adhesive strip on the back of the new battery.
    2. Turn the battery over and remove the little blue pieces of protective film from the tabs.
    3. Fold the tabs over so they stick to the new battery.
    4. Remove the pink protective film from the adhesive strips.

    When attaching the adhesive strip, make sure you can still fold over the tabs at the end.


  10. Inserting the battery

    iPhone 7 - Inserting the battery 01
    iPhone 7 - Inserting the battery 02
    1. Put the battery back in the enclosure. Use the battery contact to help you position it right.
      Make sure there’s a little space between the battery and the frame on all sides.
  11. Installing the Taptic Engine

    iPhone 7 - Installing the Taptic Engine 01
    iPhone 7 - Installing the Taptic Engine 02
    iPhone 7 - Installing the Taptic Engine 03
    iPhone 7 - Installing the Taptic Engine 04
    iPhone 7 - Installing the Taptic Engine 05
    • 3 × 1,5 mm Phillips
    • Taptic Engine Connector
    • 2 × 1,9 mm Phillips
    1. Put the Taptic Engine back between the battery and the Lightning connector.
    2. Fasten the Taptic Engine with the three Phillips screws again.
    3. Connect the Taptic Engine’s contact to the Lightning connector again.
    4. Put the plastic cover back in the iPhone and secure it with the two Phillips screws.
  12. Attach a frame sticker

    iPhone 7 - Attach a frame sticker 01
    iPhone 7 - Attach a frame sticker 02
    iPhone 7 - Attach a frame sticker 03
    iPhone 7 - Attach a frame sticker 04
    iPhone 7 - Attach a frame sticker 05
    1. To make sure that the new frame sticker will really stick, remove all residue of the old glue and dirt.
    2. Remove the first backing film.
    3. Position it carefully on one side and press it on gently.
    4. Remove the second piece of film.

    Please note the correct orientation of the frame sticker. The corners of the sticker differ and will help you.Even if you use a new frame sticker, your iPhones' water resistance may not be 100% what it was before!

    The photos show the iPhone 8, but there procedure is the same.

  13. Connecting the FaceTime contact

    iPhone 7 - Connecting the FaceTime contact 01
    iPhone 7 - Connecting the FaceTime contact 02
    iPhone 7 - Connecting the FaceTime contact 03
    • Facetime-Kontakt
    • 2 × 1,2 mm Phillips
    1. Hold the display upright on the frame and connect the FaceTime contact to the logic board.
    2. Set the display on the side of the frame.
    3. Put the FaceTime contact’s cover back in the iPhone and secure it with the two Phillips screws.
  14. Connecting the display

    iPhone 7 - Connecting the display 01
    iPhone 7 - Connecting the display 02
    iPhone 7 - Connecting the display 03
    iPhone 7 - Connecting the display 04
    iPhone 7 - Connecting the display 05
    • Display
    • Homebutton
    1. Connect the two contacts from the Home button and display to the logic board.
  15. Connecting the battery contact

    iPhone 7 - Connecting the battery contact 01
    iPhone 7 - Connecting the battery contact 02
    iPhone 7 - Connecting the battery contact 03
    • 1 × 2,4 mm Y-Type
    • 3 × 1,0 mm Y-Type
    1. Reconnect the battery by connecting the battery contact.
    2. Put the cover back in the iPhone and secure it with the four Y-Type screws.
  16. Attaching the display

    iPhone 7 - Attaching the display 01
    iPhone 7 - Attaching the display 02
    iPhone 7 - Attaching the display 03
    1. Put the display on the side of the frame and lower it onto the iPhone.
    2. Push the display toward the Sleep/Wake button so the tabs click into place.
    3. Then press the entire display into the frame.

    We can’t guarantee that it will still be waterproof. You’d have to reglue the display to make sure of that.

  17. Fastening the enclosure screws

    iPhone 7 - Fastening the enclosure screws  01
    • 2 × 3,3 mm Pentalobe
    1. Screw the two pentalobe screws to the left and right of the Lightning connector into the enclosure.
  18. Setting the time

    iPhone 7 - 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.
      The time won’t be set automatically unless you enable this feature in the settings.
      Settings > General > Date & Time > Set Automatically
    2. Remove the SIM tray with the SIM card and reinsert it.
    3. Activate airplane mode on the device and then deactivate airplane mode.
      Settings > Airplane Mode
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