installing iphone 4s display assembly · step 2 push the rear panel toward the top edge of the...

Installing iPhone 4S Display

AssemblyWritten By: Walter Galan

TOOLS:

Phillips 00 Screwdriver (1)

Plastic Opening Tools (1)

Small Flathead Screwdriver (1)

Tweezers (1)

iPhone 4 5-Point Pentalobe Screwdriver(1)

iPhone SIM Card Eject Tool (1)

PARTS:

iPhone 4S Display Assembly (1)

iPhone 4 and 4S Screen Protector (1)

SUMMARY

Use this guide to replace a cracked front panel or a broken LCD.

After successfully replacing the display assembly, protect your new display from scratchesby installing a screen protector.

Installing iPhone 4S Display Assembly

© iFixit — CC BY-NC-SA www.iFixit.com of 23

http://www.ifixit.com/Tools/Phillips-00-Screwdriver/IF145-006

http://www.ifixit.com/Tools/Plastic-Opening-Tools/IF145-000

http://www.ifixit.com/Tools/Flathead-3-32-Inch-Screwdriver/IF145-011

http://www.ifixit.com/Tools/Metal-Tweezers/IF145-020

http://www.ifixit.com/Tools/iPhone-4-5-Point-Pentalobe-Screwdriver/IF145-096

http://www.ifixit.com/Tools/iPhone-SIM-Card-Eject-Tool/IF145-091

http://www.ifixit.com/iPhone-Parts/iPhone-4S-Display-Assembly/IF115-000

http://www.ifixit.com/iPhone-Parts/iPhone-4-and-4S-Screen-Protector/IF182-025

/iPhone-Parts/iFixit-iPhone-4-and-4S-Screen-Protector/IF182-025?utm_source=ifixit_guide&utm_medium=wiki_text&utm_term=if182-025&utm_content=product_link

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.



Step 4 — Battery

Remove the following screwssecuring the battery connector tothe logic board:

One 1.7 mm Phillips screw


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.



Step 6

Use the edge of a plastic openingtool to gently pry the batteryconnector up from its socket on thelogic board.

Be very careful to only pryup on the battery connectorand not the connector on the logicboard. If you pry up on the logicboard connector, you may breakthe connector entirely.

Step 7

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 8

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

Remove the battery.

Step 9 — Dock Connector Cable

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



Remove the metal dock connector cable cover.



Step 10

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

Step 11

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



Step 12

Use the edge of a plastic opening tool to pry the Wi-Fi antenna cable up from its socket onthe logic board.

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

Step 13 — Rear Camera

If present, use a pair oftweezers to remove theouter plastic ring located on top ofthe rear camera's flash assembly.



Step 14

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





Step 15

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.



Step 16

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.

Step 17 — 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.



Step 18 — 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.



Step 19

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

Step 20

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



Step 21

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

Step 22

Use the edge of a plastic openingtool to disconnect the wi-fi antennafrom the logic board.



Step 23

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

Remove the 1.6 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 lose with the screw)

Step 24

Remove the following screwssecuring the logic board to thecase:

One 2.5 mm Phillips screw nearthe vibrator motor


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.



Step 25

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 26

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.



Step 27 — Vibrator

Wedge the plastic opening tool between the vibrator and the side of the iPhone.

Pry the vibrator up to release it from the adhesive securing it to the iPhone.

Remove the vibrator.

Step 28 — Speaker Enclosure Assembly

Remove the two 2.4 mm Phillipsscrews from the sides of thespeaker enclosure assembly.



Step 29

Remove the small plastic bracketthat was installed under the screwclosest to the dock connectorcable.



Step 30

Remove the speaker enclosure assembly from the iPhone.

Before reinstalling the speaker enclosure assembly's screws, be sure the Wi-Figrounding fingers are installed below the lip in the iPhone's metal case as seen inthe second picture.

Before reassembly, be sure to clean all metal-to-metal contact points between thegrounding fingers of the Wi-Fi antenna and the case of the iPhone with a de-greasersuch as windex or isopropyl alcohol. The oils on your fingers have the potential to causewireless interference issues.



Step 31 — Display Assembly

Remove the small pieces of blacktape covering the display mountingtabs.

Step 32

Remove the 1.5 mm Phillips screwsecuring the display assembly nearthe power button.



Step 33

Remove the 1.5 mm Phillips screwnear the headphone jack.

Step 34

Remove the 1.5 mm Phillips screwnear the lower microphone.



Step 35

Remove the 1.5 mm Phillips screwnear the dock connector cable.

Step 36

Loosen the three large-headed Phillips screws along the volume button side of the iPhoneabout one half turn.

It is not necessary to completely remove these screws. When reinstalling thedisplay assembly, be sure the washers are closest to the screw head (as seen inthe second picture).



Step 37

Loosen the three large-headedPhillips screws along the other sideof the iPhone about one half turn.



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

This document was last generated on 2012-10-23 11:18:15 AM.

Step 38

Use the edge of a plastic opening tool to gently pry up the display assembly around itsperimeter.

Remove the display assembly from the iPhone.

When reinstalling the display assembly, make sure the digitizer and display datacable are completely pulled through the slot cut into the outer case. Otherwise, thedigitizer cable will not reach to its socket on the logic board.

Remember to switch the home button from your old display to the new display (inmost cases, this is not provided). Also check that the mesh for the speaker hole ispresent in the replacement; if not, move it over from the old display.

After reassembly, protect your new display from any scratches by installing a newscreen protector.



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installing iphone 4s display assembly · step 2 push the rear panel toward the top edge of the...

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