iPhone 6s Plus Logic Board Replacement

Written By: Dante Mazzanti

Introduction

Follow the steps in this guide to replace the logic board in your iPhone 6s Plus.

It is important to note that each iPhone's logic board and Touch ID fingerprint sensor are paired at the factory. Therefore, replacing the logic board will disable Touch ID unless you also install a replacement home button that has been properly paired to your new logic board.

You can also use this guide to replace the following parts:

Audio Control Cable Bracket
Top Center Cell Antenna Bracket
NFC Bracket

Tools Required:

SIM Card Eject Tool (1)
P2 Pentalobe Screwdriver iPhone (1)
Suction Handle (1)
Spudger (1)
Tweezers (1)
Phillips #000 Screwdriver (1)
iFixit Opening Tools (1)
iFixit Opening Picks set of 6 (1)
Standoff Screwdriver for iPhones (1)
iOpener (1)

Parts Required:

iPhone 6s Plus Logic Board (1)
iPhone 6s Plus Audio Control Cable Bracket (1)
iPhone 6s Plus Top Center Cell Antenna Bracket (1)
iPhone 6s Plus NFC Bracket (1)
iPhone 6s Plus Screw Set (1)
iPhone 6s Plus Display Assembly Adhesive (1)

Step 1 - Pentalobe Screws

Before disassembling your iPhone, discharge the battery below 25%. A charged lithium-ion battery can catch fire and/or explode if accidentally punctured.

Power off your iPhone before beginning disassembly.
Remove the two 3.4 mm Pentalobe screws on either side of the Lightning port.

Textual Description of Image: An image shows the bottom edge of an iPhone 6s Plus, highlighting the two Pentalobe screws flanking the Lightning port.

Step 2 - Opening Procedure

Optionally, apply mild heat to the lower edge of the iPhone using an iOpener or hair dryer for about a minute.

Heat softens the adhesive securing the display, making it easier to open.

Textual Description of Image: An image shows an iPhone 6s Plus and an iOpener tool, indicating the application of heat to the bottom edge.

Step 3

Opening the display on the 6s Plus separates a thin strip of adhesive around the perimeter of the display. If you prefer to replace the adhesive, have a set of new adhesive strips ready before you continue. It's possible to complete the repair without replacing the adhesive, and you probably won't notice any difference in functionality.

Apply a suction cup to the lower left corner of the display assembly.

Textual Description of Image: An image shows a hand applying a suction cup to the lower left corner of the iPhone's display.

If your display is badly cracked, covering it with a layer of clear packing tape may allow the suction cup to adhere. Alternatively, very strong tape may be used instead of the suction cup. If all else fails, you can superglue the suction cup to the broken screen.

Step 4

Pull up on the suction cup with firm, constant pressure to create a slight gap between the front panel and rear case.

Pulling too hard may damage the display assembly. Apply just enough pressure to create a small gap between the display assembly and the rear case.

Textual Description of Image: Two images show a hand pulling up on a suction cup attached to the iPhone's display, creating a small gap.

Step 5

The safest place to pry from is the notch in the front panel above the headphone jack.
While still maintaining pressure on the suction cup, insert the flat tip of a spudger into the gap, directly above the headphone jack.

Textual Description of Image: Three images show a spudger being inserted into the gap created by the suction cup, above the headphone jack.

Step 6

Twist the spudger to widen the gap between the front panel and the rear case.

Textual Description of Image: Two images show a spudger being twisted to widen the opening between the iPhone's front and rear panels.

Step 7

While firmly pulling up on the suction cup, slide the edge of the spudger under the bottom left corner of the display.

Textual Description of Image: Three images show a spudger being slid along the bottom edge of the iPhone's display to separate it from the frame.

Step 8

Slide the tip of the spudger up the left side of the phone, between the front panel and the rear case.

Textual Description of Image: Two images show a spudger being slid up the left side of the iPhone to continue separating the display.

Step 9

Insert the flat tip of the spudger under the right edge of the display.
Slide the spudger up the right side.

Textual Description of Image: Two images show a spudger being inserted under the right edge of the display and slid upwards.

Step 10

Use a plastic opening tool to hold down the rear case while pulling up the suction cup to open the phone.

Do not remove the display completely, or you will damage the data cables connecting the display near the top edge of the iPhone.

Textual Description of Image: Two images show a plastic opening tool holding the rear case while the suction cup is pulled to open the phone.

Step 11

Pull up on the small nub on the suction cup to remove it from the display.

Textual Description of Image: Two images show a hand pulling the nub of the suction cup to detach it from the iPhone's display.

Step 12

Gently grasp the display assembly and lift it up to open the phone, using the clips at the top of the front panel as a hinge.
Open the display to about a 90º angle, and lean it against something to keep it propped up while you're working on the phone.

Don't open the display more than 90º—it is still connected to the top of the phone by the display, digitizer, and front camera cables which can tear easily.

Add a rubber band to keep the display securely in place while you work. This prevents undue strain on the display cables.

In a pinch, you can use an unopened canned beverage to support the display.

Textual Description of Image: Three images show the iPhone display being opened like a book, propped open at an angle.

Step 13 - Battery Connector

Remove two Phillips screws securing the battery connector bracket to the logic board, of the following lengths:
One 2.9 mm screw
One 2.3 mm screw

Textual Description of Image: An image shows the iPhone's internal components, highlighting the battery connector bracket with two Phillips screws circled.

Throughout this guide, keep careful track of your screws so that each one goes back where it came from during reassembly. Installing a screw in the wrong place can cause permanent damage.

Step 14

Remove the battery connector bracket.

Textual Description of Image: Two images show a spudger being used to lift and remove the battery connector bracket.

Step 15

Use a spudger or a clean fingernail to disconnect the battery connector by prying it straight up off the logic board.

Textual Description of Image: Three images show a spudger being used to carefully pry up and disconnect the battery connector.

Step 16

Bend the connector back to ensure it doesn't make contact and power the iPhone on while you're working on it.

Textual Description of Image: Three images show the disconnected battery connector being bent away from the logic board.

Step 17 - Display Assembly

Remove the following Phillips screws:
Three 1.3 mm screws
One 1.6 mm screw
One 3.0 mm screw

Textual Description of Image: An image shows the iPhone's internal components with screws circled that secure the display cable bracket.

During reassembly, it's critical to place this 3.0 mm screw in the top-right corner of the bracket. Placing it anywhere else may damage the logic board.

Step 18

Remove the display cable bracket.

Textual Description of Image: Two images show a spudger being used to lift and remove the display cable bracket.

Step 19

Use a plastic opening tool to disconnect the front-facing camera and sensor cable connector.

Be careful to only pry up on the connector itself and not the socket on the logic board.

Textual Description of Image: Two images show a plastic opening tool being used to carefully disconnect the front-facing camera and sensor cable connector.

Step 20

Use a plastic opening tool to disconnect the digitizer cable by prying it straight up from its socket on the logic board.

When reconnecting the digitizer cable, do not press the center of the connector. Press one end of the connector, then press the opposite end. Pressing in the center of the connector can bend the component and cause digitizer damage.

Textual Description of Image: Two images show a plastic opening tool being used to disconnect the digitizer cable.

Step 21

Disconnect the home button/fingerprint sensor cable by prying it straight up from its socket on the logic board.

Make sure the battery is disconnected before you disconnect or reconnect the cable in this step.

Textual Description of Image: Two images show a plastic opening tool being used to disconnect the home button/fingerprint sensor cable.

Step 22

Remove the display assembly.

During reassembly, pause here if you wish to replace the adhesive around the edges of the display.

Textual Description of Image: Two images show the display assembly being carefully lifted away from the iPhone.

Step 23 - iSight Camera

Peel up any tape covering the iSight camera bracket screws.

Textual Description of Image: Three images show tape being peeled away from the iSight camera bracket screws.

Step 24

Remove the following Phillips screws over the camera bracket:
One 1.9 mm screw
One 2.4 mm screw

Textual Description of Image: An image shows the iSight camera bracket with two Phillips screws circled.

Step 25

Remove the iSight camera bracket.

Textual Description of Image: Two images show a spudger being used to lift and remove the iSight camera bracket.

Step 26

Disconnect the iSight camera connector from its socket on the logic board.

Be sure to pry up only the connector and not the socket on the logic board.

Textual Description of Image: Two images show a spudger being used to disconnect the iSight camera connector.

Step 27

Insert the flat end of the spudger between the iSight camera and rear casing.
Gently pry the camera out from its housing.

Textual Description of Image: Two images show a spudger being used to gently pry the iSight camera out of its housing.

Step 28

Remove the iSight camera.

Textual Description of Image: Two images show tweezers being used to remove the iSight camera.

Step 29 - SIM Tray

Insert a SIM eject tool into the hole in the SIM tray.
Press to eject the SIM tray.

Textual Description of Image: Two images show a SIM eject tool being inserted into the SIM tray and the SIM tray being ejected from the iPhone.

Step 30

Remove the SIM tray.

When reinserting the SIM tray, be sure to orient the tray such that the SIM eject hole is on the bottom.

Textual Description of Image: An image shows the SIM tray being removed from the iPhone.

Step 31 - Logic Board

Remove the single 1.4 mm Phillips screw holding the NFC bracket in place.

Textual Description of Image: An image shows the NFC bracket on the logic board with a screw circled.

Step 32

Remove the NFC bracket.

Textual Description of Image: Two images show a spudger being used to lift and remove the NFC bracket.

Step 33

Remove the two 2.7 mm Phillips screws securing the audio control cable bracket to the logic board.

Textual Description of Image: An image shows the audio control cable bracket with two Phillips screws circled.

Step 34

Remove the audio control cable bracket.

Textual Description of Image: Two images show a spudger being used to lift and remove the audio control cable bracket.

Step 35

Disconnect the audio control cable by prying its connector straight up from its socket on the logic board.

Textual Description of Image: Two images show a spudger being used to pry up and disconnect the audio control cable.

Step 36

Disconnect the cellular antenna cable by prying its connector straight up from its respective socket on the logic board.

Textual Description of Image: Two images show a spudger being used to pry up and disconnect the cellular antenna cable.

Step 37

Disconnect the Wi-Fi diversity antenna cable by prying its connector up from the logic board.

Textual Description of Image: Two images show a spudger being used to pry up and disconnect the Wi-Fi diversity antenna cable.

Step 38

Disconnect the power button flex cable from its socket on the logic board.

Textual Description of Image: Two images show a spudger being used to disconnect the power button flex cable.

Step 39

Disconnect the Lightning connector interconnect antenna cable by prying it up from the logic board.

Textual Description of Image: Two images show a spudger being used to pry up and disconnect the Lightning connector interconnect antenna cable.

Step 40

Use the flat end of a spudger to disconnect the Lightning connector flex cable from the logic board.

Textual Description of Image: Two images show a spudger being used to disconnect the Lightning connector flex cable.

Step 41

Deroute the antenna cable from the two clips on the right edge of the logic board.

Textual Description of Image: Three images show an antenna cable being carefully guided out from clips on the logic board.

Step 42

Remove the following screws:
One 1.3 mm Phillips screw
One 2.6 mm Phillips screw
One 2.2 mm standoff screw

Textual Description of Image: Two images show screws being removed from the logic board area.

Standoff screws are best removed using a standoff screwdriver or bit.

In a pinch, a small flathead screwdriver will do the job—but use extra caution to ensure it doesn't slip and damage surrounding components.

Step 43

Remove the bracket.

Textual Description of Image: Two images show a bracket being removed from the logic board.

Step 44

Deroute the upper left cellular antenna cable from the first logic board clip by nudging it out from under the clip, towards the battery.

Textual Description of Image: Two images show an antenna cable being nudged out from a clip on the logic board.

Step 45

Continue derouting the cellular antenna cable from the second and third logic board clips.
Use the pointed tip of a spudger to gently pry the cellular antenna cable from the middle logic board clip.

Don't try to remove it by pulling on the cable, as it will tear easily.

In order for the cable to reach its socket on the logic board, you must route it above the logic board and underneath the audio control flex cable, as shown in the first photo.

Textual Description of Image: Three images show the cellular antenna cable being derouted from clips on the logic board.

Step 46

Remove the final 2.0 mm Phillips screw directly below the SIM card reader.

Textual Description of Image: An image shows the final screw below the SIM card reader being removed.

Step 47

Carefully raise—but do not remove—the logic board, lifting it from the bottom edge nearest the Lightning connector.

Textual Description of Image: Three images show the logic board being carefully lifted from the bottom edge.

Step 48

Tip the logic board up to a vertical position to expose the single antenna connector on the underside, near the top edge of the board.

Do not attempt to fully remove the logic board yet, as the Wi-Fi/Bluetooth antenna is still connected to the underside of the board.

Textual Description of Image: Two images show the logic board being tipped up to a vertical position.

Step 49

Gently lay the logic board upside-down, with the top portion resting against the rear case of the iPhone.
Use the flat end of the spudger to disconnect the Wi-Fi/Bluetooth antenna cable from its socket on the back of the logic board.

Textual Description of Image: Two images show the logic board laid upside-down, with a spudger disconnecting the Wi-Fi/Bluetooth antenna cable.

Step 50

Remove the logic board.

Textual Description of Image: An image shows the logic board being removed from the iPhone.

Reassembly

To reassemble your device, follow these instructions in reverse order.

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