installing iphone 4s power button

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Installing iPhone 4S Power Button Written By: Walter Galan TOOLS: iPhone 4 5-Point Pentalobe Screwdriver (1) iPhone SIM Card Eject Tool (1) Phillips #00 Screwdriver (1) Plastic Opening Tools (1) Small Flathead Screwdriver (1) Tweezers (1) PARTS: iPhone 4S Power and Lock Button (1) INTRODUCTION Use this guide to replace the metallic outer power button on your iPhone. Installing iPhone 4S Power Button © iFixit — CC BY-NC-SA www.iFixit.com Page 1 of 19

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Installing iPhone 4S Power

ButtonWritten By: Walter Galan

TOOLS:

iPhone 4 5-Point Pentalobe Screwdriver(1)iPhone SIM Card Eject Tool (1)Phillips #00 Screwdriver (1)Plastic Opening Tools (1)Small Flathead Screwdriver (1)Tweezers (1)

PARTS:

iPhone 4S Power and Lock Button (1)

INTRODUCTION

Use this guide to replace the metallic outer power button on your iPhone.

Installing iPhone 4S Power Button

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Step 1 — Rear Panel

Before disassembling youriPhone, be sure it ispowered off.

Remove the two 3.6 mm Pentalobescrews next to the dock connector.

During reassembly, werecommend you replace the5-point screws with equivalentPhillips screws. Our Liberation Kitprovides the tools and screwsneeded to replace the Pentalobescrews with Phillips screws.

The 5-Point Screwdrivershould only be used once,as it has the potential to strip thescrews.

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Step 2

Push the rear panel toward the top edge of the iPhone.

The panel will move about 2 mm.

Step 3

Pull the rear panel away from theback of the iPhone, being carefulnot to damage the plastic clipsattached to the rear panel.

Remove the rear panel from theiPhone.

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Step 4 — Battery

Remove the following screws securing the battery connector to the logic board:

One 1.7 mm Phillips screw

One 1.5 mm Phillips screw

Use a plastic opening tool to gently detach the battery connector from the device.

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Step 5

Use a plastic opening tool to pull the pressure contact from underneath the batteryconnector.

When reinstalling the pressure contact, be sure to clean it with a degreaser such aswindex or isopropyl alcohol. The oils on your fingers have the potential to createwireless interference.

Take notice of the small black ground clip on the upper screw of the batteryconnector.

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Step 6

Insert the edge of a plastic opening tool between the battery and the outer case near thebottom left corner of the iPhone.

Run the plastic opening tool along the right edge of the battery and pry up at several pointsto completely separate it from the adhesive securing it to the outer case.

Step 7

Use the exposed clear plastic pull tab to peel the battery off the adhesive securing it to theiPhone.

Remove the battery.

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Step 8 — Dock Connector Cable

Remove the following screws securing the dock connector cable cover to the logic board:

One 1.5 mm Phillips screw

One 1.2 mm Phillips screw

Remove the metal dock connector cable cover.

Step 9

Use the edge of a plastic openingtool to pry the dock cable up fromits socket on the logic board.

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Step 10

Peel the dock connector cable offthe adhesive securing it to the logicboard and the side of the speakerenclosure.

Step 11

Use the edge of a plastic opening tool to pry the cellular antenna cable up from its socketon the logic board.

De-route the cellular antenna cable out from under the metal fingers attached to the logicboard.

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Step 12 — Rear Camera

If present, use a pair oftweezers or an opening toolto remove the outer plastic ringlocated on top of the rear camera'sflash assembly.

Step 13

Remove the following four screwssecuring the cable cover to thelogic board:

One 2.7 mm Phillips screw

One 2.6 mm Phillips screw

One 1.3 mm Phillips screw

One 1.2 mm Phillips screw

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Step 14

Use the edge of a plastic opening tool to pry the cable cover tabs out of their slots cut intothe EMI shield on the logic board.

Lift the cable cover from its edge nearest the top and remove it from the iPhone.

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Step 15

Use the edge of a plastic opening tool to pry the rear camera connector up from its socketon the logic board.

Be careful not to break any components off the surrounding area on the logic boardas you pry upwards.

Remove the rear camera from the iPhone.

There is a small rubber gasket that sits underneath the rear-facing camera. Makesure that it is properly seated before reassembly.

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Step 16 — SIM Card

Use a SIM card eject tool or a paperclip to eject the SIM card and its holder.

This may require a significant amount of force.

Remove the SIM card and its holder.

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Step 17 — Logic Board

Remove the five cables near the top of the logic board in the following order:

Headphone jack/volume button cable

Front facing camera cable

Digitizer cable

Display data cable

Power button cable (located underneath the headphone jack/volume button cable asshown in the second picture.)

To disconnect the cables, use the edge of a plastic opening tool to gently lift theirconnectors up and out of the sockets on the logic board.

Be careful not to break any of the small and delicate surface mount components asyou disconnect the cables.

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Step 18

Remove the 1.5 mm Phillips screwsecuring the grounding clip to thelogic board near the headphonejack.

Step 19

Lift the small grounding clip up offthe logic board and remove it fromthe iPhone.

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Step 20

Use a small flathead screwdriver toremove the 4.8 mm standoff nearthe headphone jack.

Step 21

Use the edge of a plastic openingtool to disconnect the Wi-Fiantenna from the logic board.

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Step 22

If present, peel the piece of black tape covering the hidden screw near the power button.

Remove the 2.6 mm Phillips screw securing the logic board near the power button.

(Use caution when removing this screw and removing the power contact held by it; thecontact tab will come loose with the screw)

Step 23

Remove the following screwssecuring the logic board to thecase:

One 2.5 mm Phillips screw nearthe vibrator motor

One 2.4 mm Phillips screw

One 3.6 mm standoff along theside of the logic board nearestthe battery opening.

Use a small flatheadscrewdriver to remove thesingle 3.6 mm standoff.

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Step 24

Carefully lift the logic board fromthe end closest to the speakerenclosure and slide it away fromthe top edge of the iPhone.

Remove the logic board.

Before reassembly, be sureto clean all metal-to-metalcontact points on the logic board(not the mating halves ofconnectors) with a de-greaser suchas windex or isopropyl alcohol. Theoils on your fingers have thepotential to cause groundingissues.

Step 25

Be sure not to lose thesmall grounding finger forthe rear facing camera near thepower button. This finger rests ontop of the PCB, screwed down, andcovered with the adhesive blackplastic tape.

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

Step 26 — Power Button

Remove the two 1.6 mm Phillips screws securing the power button bracket to the outercase.

Slightly pull the power button bracket away from the outer case.

Step 27

Use a pair of tweezers to remove the power button from the iPhone.

During reassembly, take note of the correct orientation of the power button. Themetal loop should be facing downwards and the outward edges should be on top.

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This document was last generated on 2013-06-26 02:08:48 PM.

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