iPhone 4 Wi-Fi Antenna Replacement

This guide will show you how to replace the wi-fi antenna which sits over the display connectors near the top of the phone.

  • Author: Scott Head
  • Time required: 15 Minutes
  • Difficulty: Moderate

This guide will show you how to replace the wi-fi antenna which sits over the display connectors near the top of the phone.

Tools (continued)
Relevant Parts
Image #1

Edit Step 1 Rear Panel  ¶ 

  • Before disassembling your iPhone, be sure it is powered off.

  • Your iPhone 4 rear cover may have either two #000 Phillips screws or Apple's 5-Point "Pentalobe" screws (second image). Check which screws you have, and ensure you also have the correct screwdriver in order to remove them.

  • Remove the two 3.6 mm Pentalobe or Phillips #000 screws next to the dock connector.

  • During reassembly, we recommend you replace the 5-point screws with equivalent Phillips screws. Our Liberation Kit provides the tools and screws needed to replace the Pentalobe screws with Phillips screws.

  • The 5-Point Screwdriver should only be used once, as it has the potential to strip the screws.

Image #1

Edit Step 2  ¶ 

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

  • The panel will move about 2 mm.

Image #1

Edit Step 3  ¶ 

  • Pinch the rear panel with your fingers and lift it away from the iPhone. Alternatively, use a Small Suction Cup .

  • Be careful not to damage the plastic clips attached to the rear panel.

  • If you are installing a new rear panel, be sure to remove the plastic protective sticker from the inside of the camera lens and the sticker from the large black area near the lens.

Image #1

Edit Step 4 Wi-Fi Antenna  ¶ 

  • Remove the following five screws securing the wi-fi antenna 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 replacing the 4.8 mm Philips screw first, then the 2.3 mm. This is to ensure there is no mix-up, and avoid rendering the LCD and digitizer useless.

  • Also make sure to put the long 4.8 mm Philips back in correctly when reassembling. This is the ground for the wi-fi antenna and is often the culprit if you are having bad wi-fi reception after reassembly.

Image #1

Edit Step 5  ¶ 

  • Use an iPod opening tool to slightly lift the top edge of the wi-fi antenna away from the logic board.

  • Use the tip of a spudger to pull the wi-fi retaining clips away from the inner frame.

  • Remove the wi-fi antenna from the iPhone. Make sure you don't lose the metal clips on the top of the cover where the 4.8mm screw attaches or the 4.8mm screw. That's the primary reason for abnormal Wi-Fi performance after the reassembly.

  • Before reassembly, be sure to clean all metal-to-metal contact points on the connector cover with a de-greaser such as Windex. The oils on your fingers have the potential to cause wireless interference issues. Do not clean the connectors themselves with Windex.

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

For more information, check out the iPhone 4 device page.

Required Tools

Phillips #00 Screwdriver

$5.95 · 50+ In stock

Plastic Opening Tools

$2.95 · 50+ In stock

Phillips #000 Screwdriver

$5.95 · 50+ In stock

Recommended Tools

Universal Drive Adapter

$29.95 · 50+ In stock

iFixit Lock Pick Set

$29.95 · 50+ In stock

Inspection Scope

$39.95 · 50+ In stock

Frictionless Ratchet

$24.95 · 50+ In stock

Portable Anti-Static Mat

$34.95 · 43 In stock

Popular Device Products

SIM Card Eject Tool

$2.95 · 50+ In stock

iPhone 4 Replacement Battery

$19.95 · 26 In stock

iPhone 4 Display Assembly (GSM/AT&T)

$64.95 · 22 In stock

iPhone 4 Home Button Assembly

$14.95 · 50+ In stock

iPhone 4/4S Liberation Kit

$9.95 · 50+ In stock

Comments Comments are onturn off

The wifi antenna has a small clip connecting the black antenna to the logic board.

Its very small and apparently easy to loose as i never even saw mine. If you loose it you will not have a good wifi signal untill its replaced.

trae, · Reply

It's doesn't work i'm sorry

mariocrocop, · Reply

I purchased an iPhone 4 GSM new/sealed from an Apple Store in July 2010

and never needed to connect to multiple Wi-Fi networks until recently.

When I would go from a known Wi-Fi connection to another one,

I would need to go into Settings to reconnect each time.

I figured that I needed to replace the Wi-Fi antenna.

When I took off the back panel, I discovered that the 4.8mm Phillips screw

that grounds the Wi-Fi antenna is not present. So, you might want to first

check that the screw is there and properly secured.

macintaos, · Reply

Still doesn't work ... one or two bar near a-port express / everything is in order - just one screw miss / yellow one [1.4 mm Phillips] - U think that's the reason ?? Please, help :(

gustyn2000, · Reply

Ifixit no longer sells the WiFi antennas but I found a perfectly good one on Ebay

panchocole, · Reply

Caution: New phones may contain T1 screw heads instead of Phillips.

ajg35, · Reply

any news on those screwdrivers? where can we buy them?

grze,

using something like the 18-compartment tray will GREATLY help with this one; there are over a dozen groups of parts. For re-assembly having a digital calipers to measure the 2.4 vs the 2.6mm screws also helps greatly.

awr, · Reply

My method for hardware management during delicate phone surgery is to take and print out on 8.5"x11' paper, one or more pictures of the open phone in various stages of disassembly, and then tape the screws to the appropriate spots on the pictures. Also write numbers on the pictures next the screws to indicate the order in which you removed them.

lens42,

I did a successful surgery on my iPhone, be warned this is not for the faint of heart!

I've done iPod screen replacements, battery replacements, this is by far much more difficult and intricate.

Great write up! Thanks a million.

Jaysen Strange, · Reply

Couldn't even get both screws out of the bottom of the case. One was easy and other refuses to budge. Screws so small I can't see if it is turning or screw driver is properly seated. Sad I too have done screen replacements on other phones. Don't know any secrets to get the screw out

ckracht, · Reply

I also have a problem with seeing what is happening with some of those tiny little screws and parts. For other projects that I do, I use an Opti-Visor. It slips over your head and provides 10x magnification. ( You can find them on Amazon).

Yeah, it adds cost to the project and you would have to wait for delivery, but it sure makes a world of difference in seeing what you are working with / on.

jhow,

On an early iPhone 4 I found that the #000 Phillips bit included in the 54 Bit Driver Kit didn't actually fit the screws. However the JIS #000 also in the kit did fit quite well. This is due to the JIS bits "thinner" design to prevent camming out of the slot. Otherwise everything went well. Looking forward to replacing the battery in my other phone that has the pentalobe screws. Glad I got the 54 Bit kit!

etler, · Reply

Use a vacuum duster and a sharp tool to pry out the dust, this can increase the volume insanely!

Dpairs, · Reply

At the very last second before insertion, the second new screw for the bottom popped out of my pliers! I dont' want to use the old ones, but I don't want to leave it with one screw. Can I get a replacement screw?

Otherwise it went together fine, and I figured out for myselkf that the contact needs to be bent,,,

loujudson, · Reply

What does the park that is gold and next to the 4.8mm screw for the antenna? Looks like I am missing that part and almost positive that is why I can't pick up or connect to any wifi signals. I have the screw and the antenna from another phone that is working and tried it on the broken phone and still doesn't work. Only thing different is that gold metal piece to the left of that 4.8 mm screw. Can I buy that part? how do I attach it?

Jay Pennington, · Reply

not able to unscrew

Naved Zaidi, · Reply

using suction cup with too much force breaks rear panel

lily einstein, · Reply

Remove the single 2.5 mm Phillips screw securing the battery connector to the logic board- for me this Phillips screw won't budge from its place have tried all the phillips combinations 000, 00, 0, 1 and the straight /slotted 1.5 mm but nothing. can some help me please purchased a replacement battery for my iPhone 4 but not able to do it just because of this screw.

Naved Zaidi, · Reply

As the hole for the EMI shield/antenna was slightly small, I had to hold the screw with tweezers whilst spinning it with the screwdriver so it would "drill" down through and connect

panchocole, · Reply

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