Installing iPhone 4 Display Assembly

8/7/2019 Installing iPhone 4 Display Assembly

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Installing iPhone 4 Display Assembly

Tools used in this guide

Paper Clip (1)

Phillips #00 Screwdriver (1)

Plastic Opening Tools (1)

Small Flathead Screwdriver (1)

Spudger (1)

Tweezers (1)

iPhone 4 5-Point Screwdriver (1) (if iPhone has

external pentalobe screws)

Parts relevant to this guide

iPhone 4 Display Assembly (1)

Use this guide to replace your iPhone's display assembly. Replacing the display assembly will give you a new front glass panel,digitizer, and LCD. The LCD is adhered to the glass at the factory and the two parts are not separable without damage.


2011 iFixit CC BY-NC-SA www.iFixit.com Page 1 of 1
http://www.ifixit.com/Item/iPhone_4_Display_Assemblyhttp://www.ifixit.com/Item/iPhone_4_5-Point_Screwdriverhttp://www.ifixit.com/Item/Tweezershttp://www.ifixit.com/Item/Spudgerhttp://www.ifixit.com/Item/Small_Flathead_Screwdriverhttp://www.ifixit.com/Item/Plastic_Opening_Toolshttp://www.ifixit.com/Item/Phillips_00_Screwdriverhttp://www.ifixit.com/Item/Paper_Clip


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Step 1 - Rear Panel

Before disassembling your iPhone, be sure your iPhonis powered off and the silent switch is activated.

Step 2

Remove the two 3.6 mm Phillips screws next to thedock connector.

Apple has recently substituted the twoPhillips screws with 5-Point "Pentalobe"screws. If your iPhone 4 has 5-Point"Pentalobe" screws instead of Phillips,please refer to the second picture.

Remove the two 3.6 mm Pentalobe screws next to thedock connector.

During reassembly, we recommend you use

the 5-Point Screwdriver to remove the 5-Point screws and replace them with theequivalent Phillips screws.

The 5-Point Screwdriver should only beused once as it has the potential to strip thescrews.




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Step 3

Push the rear panel toward the top edge of the iPhone

The panel will move about 2 mm.

Step 4

Remove the rear panel from the iPhone.




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Step 5 - Battery

Remove the single 2.5 mm Phillips screw securing thebattery connector to the logic board.

Step 6

Use an iPod opening tool to carefully pry the batteryconnector up from the ends closest to the top andbottom edges of the iPhone.

Do not pry against the pressure contact.

Remove the antenna contact from the iPhone.




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Step 7

Use the clear plastic pull tab to gently lift the battery ouof the iPhone.

Be careful when removing the battery with the plasticpull tab. On some units, Apple uses an excessive

amount of glue, making it virtually impossible to removethe battery in this fashion (with the tab possibly tearingdue to excessive force).

For batteries that "stick", you could use the iPodopening tool to assist (take extra care whilst doing so).

Remove the battery.

Before reconnecting the battery connector,be sure the pressure contact (shown in red)is properly positioned next to the batteryconnector.

Before reassembly, be sure to clean allmetal-to-metal contact points on thepressure contact as well as its contact pointon the rear panel with a de-greaser such aswindex. The oils on your fingers have thepotential to cause wireless interferenceissues.

Step 8 - Logic Board

Use a paperclip or another thin steel object to eject theSIM card and its holder.

This may require a significant amount offorce.

Remove the SIM card and its holder.




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Step 9

Remove the following two screws:

One 1.2 mm Phillips

One 1.6 mm Phillips

Remove the thin steel dock connector cable cover fromthe iPhone.

Before reassembly, be sure to clean allmetal-to-metal contact points on the dockconnector cable cover with a de-greasersuch as windex. The oils on your fingershave the potential to cause wirelessinterference issues.

Step 10

Use an iPod opening tool to gently pry the dock cableconnector up off the logic board from both short ends othe connector.




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Step 11

Carefully peel the dock ribbon cable off the logic boardand the lower speaker enclosure.

Step 12

Use an iPod opening tool to pry the lower antennaconnector up off its socket on the logic board.




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Step 13

Remove the 1.9 mm Phillips screw securing the bottomof the logic board to the inner case.

Step 14

Remove the following five screws securing theconnector cover to to the logic board:

One 2.3 mm Phillips

Two 1.6 mm Phillips

One 1.4 mm Phillips

One 4.8 mm Phillips

When re-assembling, start off with replacingthe 4.8 mm Philips screw first, then the 2.3mm. This is to ensure there is no mix-up,

and avoid rendering the LCD and digitizeruseless.




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Step 15

Use an iPod opening tool to slightly lift the top edge ofthe connector cover away from the logic board.

Use the tip of a spudger to pull the connector coverretaining clips away from the inner frame.

Remove the connector cover from the iPhone.

Before reassembly, be sure to clean allmetal-to-metal contact points on theconnector cover with a de-greaser such aswindex. The oils on your fingers have thepotential to cause wireless interferenceissues.

Step 16

Use an iPod opening tool to carefully lift the rearcamera connector up off its socket on the logic board.

Remove the rear camera.




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Step 17

Remove the small circular white sticker (warrantysticker and water indicator) covering the screw near thebattery pull tab.

Remove the 2.4 mm Phillips screw that was hidden

underneath the sticker.

Step 18

Disconnect the following connectors from the top of thelogic board:

Digitizer cable

LCD cableHeadphone jack/volume button cable

Top Microphone/sleep button cable

Front camera cable

It is helpful to use the edge of an iPodopening tool to gently lift the connectors upand out of their sockets on the logic board.


2011 iFixit CC BY-NC-SA www.iFixit.com Page 10 of


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Step 19

Use a small flathead screwdriver to remove the 4.8 mmstandoff near the headphone jack.

Step 20

Carefully remove the logic board from the iPhone,minding any cables that may get caught.

Step 21 - Speaker Enclosure Assembly

Remove the single 2.4 mm Phillips screw securing thespeaker enclosure to the side of the inner frame.




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Step 24

Remove the 1.5 mm Phillips screw securing the frontpanel near the headphone jack.

Step 25

Remove the three large-headed 1.5 mm Phillips screwsalong the volume button side of the iPhone.

Keep track of the washers under each of thescrews.

Tip: It can be tricky, but it is also possible tojust loosen the large-headed 1.5 mm Phillipsscrews slightly, without having to removeand replace the screw-and-washer set.

Step 26

Remove the 1.5 mm Phillips screw near the lowermicrophone.




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Step 27

Remove the 1.5 mm Phillips screw near the dockconnector ribbon cable.

Step 28

Remove the three large-headed 1.5 mm Phillips screwsalong the SIM card side of the iPhone.

Keep track of the washers under each of thescrews.

Tip: It can be tricky, but it is also possible tojust loosen the large-headed 1.5 mm Phillipsscrews slightly, without having to removeand replace the screw-and-washer set.

Remove the small-headed 1.5 mm Phillips screw nearthe sleep button.




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Step 29

Carefully insert the edge of an iPod opening toolbetween the rubber bezel around the front glass paneland the steel inner frame.

Do not attempt to insert the tool between the

glass and the rubber bezel.

Carefully pry the upper edge of the front panelassembly away from the steel inner frame.

Step 30

Slowly and gently lift the top edge of the front panelassembly away from the steel inner frame.

Continue to rotate the front panel assembly away fromthe steel inner frame until it slowly begins to peel off the

adhesive applied below the home button area.

Carefully pull the lower edge of the front panelassembly away from the steel inner frame.




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Step 31

De-route the digitizer and LCD cables through the steelinner frame.

Before re-fastening the front panel to thesteel inner frame, be sure both the LCD and

digitizer cables are not folded or pinchedbetween the inner frame and the front panelassembly. This will result in possiblydamaging the cables and not having enoughslack when reconnecting the them to thelogic board.

When the front panel has been correctlyinstalled, both the LCD and digitizer cablesshould be immediately next to one another,and the connectors should be just hangingover the steel frame.

When replacing the front panel assemblyyou must remember that you might have toreuse the earpiece grille and the clearplastic ring around the front facing camerafrom the old/damaged assembly. This willdepend on where you buy the replacementpart.

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

This document was last generated on Jan 31, 2011.


Documents

Installing iPhone 4 Display Assembly