iPhone 4 Battery Replacement

Featured Guide

Featured Guide

This guide has been found to be exceptionally cool by the iFixit staff.

Replace the battery on your iPhone 4.

Luckily, replacing the battery on the iPhone 4 requires minimal disassembly.

Edit Step 1 Rear Panel  ¶ 

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.

Edit Step 2  ¶ 

Image #1

Edit Step 2  ¶ 

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

  • The panel will move about 2 mm.

Edit Step 3  ¶ 

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.

Edit Step 4 Battery  ¶ 

Image #1

Edit Step 4 Battery  ¶ 

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

    • Some devices may have two screws, one of which holds down the contact pad which is located above the screw indicated in red in the photo.

Edit Step 5  ¶ 

Image #1

Edit Step 5  ¶ 

  • Use a plastic opening tool to gently pry the battery connector up from its socket on the logic board.

  • Be very careful to only pry up on the battery connector and not the socket on the logic board. If you pry up on the logic board socket, you may break it entirely.

  • Remove the metal clip covering the antenna connector.

Edit Step 6  ¶ 

Image #1

Edit Step 6  ¶ 

  • Use the clear plastic pull tab to gently lift the battery out of the iPhone.

  • Do not remove the plastic tab from the iPhone.

  • You may need to use a plastic opening tool to loosen the adhesive under the battery.

  • Remove the contact clip from the iPhone.

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

  • Before reassembly, be sure to clean all metal-to-metal contact points on the pressure contact as well as its contact point on the rear panel with a de-greaser such as windex. The oils on your fingers have the potential to cause wireless interference issues.

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

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

Required Tools

P2 Pentalobe Screwdriver iPhone

$7.95 · 50+ In stock

Phillips #000 Screwdriver

$5.95 · 50+ In stock

Plastic Opening Tools

$2.95 · 50+ In stock

Anti-Static Project Tray

$4.95 · 50+ In stock

Related Products

iPhone 4 Replacement Battery

$19.95 · 35 In stock

iPhone 4 Replacement Battery

$19.95 · 50+ In stock

Recommended Tools

54 Bit Driver Kit

$24.95 · 50+ In stock

Magnetic Project Mat

$19.95 · 50+ In stock

Pro Tech Screwdriver Set

$59.95 · 50+ In stock

Anti-Static Project Tray

$4.95 · 50+ In stock

Comments Comments are onturn off

I used "flat" 1mm screwdriver instead of 5-Point one with success.

jacek, · Reply

When I put the battery in, the lead going from the battery to the plug was fully extended. You need to fold it back on itself - look at the shape of the battery you just removed.

Unfortunately, I didn't realize this until AFTER I clipped the new battery in. I tried to align the battery to where it should go while it was still connected, in the process I broke one of the soldered connections on the battery connector. Wouldn't boot up and did the continuous battery recycling.

Luckily, I was able to put the old battery back in and all was working again. I don't think I'll attempt a new battery at this point...

jradi72, · Reply

Hugely disappointed. iFixit sends me a battery that has corrosion on it with a black X marked on the clip, looks like it is used? And don't even mention this small part, or the folding over. C'mon iFixit you've done great stuff this is not one of them.

dprossi, · Reply

Now that I put my old battery back in, my phone turns on but won't charge. Great. I have 68% until I have a dead phone, no battery. The battery I got from ifixit was a dud. This is a complex process--I've changed out displays on a laptop, hard drives, cpus. This is NOT a "moderate" job and needs major rework on their tips.

dprossi, · Reply

sir I am selina ,I konw maybe the battery quality is not good .

What's you battery capacity?

This is our E-mail:selina1991407@126.com

If you have some problems you can send message to me.


Beware, watch the video, there is a antenna cover/clip that pops out easily when you remove the inside screw and has to be replaced. This was quickly mentioned in the video but NOT mentioned in the guide. Also I stripped every screw I removed/replaced, the #00 screw driver doesn't work to well and I had the original philips screws, not the pentalope screws. Also, the read all the other comments, I wish I had known the battery cable wasn't pre-bent...its tricky doing yourself.

Be careful is my word of advice and have tweezers around too!

cdthacker, · Reply

This took much longer than the expected 10 mins. The guide made no mention that the battery cable wasn't pre-bent, and I almost bent the cable at the wrong angle to make it fit during several attempts. I tried to re-start the phone several times without success before finally making the new battery work properly.

flightjh, · Reply

The battery change worked without any problems.

My replacement battery connector cable was pre bent so that was not any issue for me.

I am glad that I read the comment about the antenna clip.

As everyone else I needed to use a lot of force to pry the battery loose, take your time and don't rush that part of the job.

Henrik Persson, · Reply

You guys rock! Thanks so much for taking the time to make this video!

Marilyn, · Reply

wait a moment ,maybe it will get well


1) The screws are very easy to strip. Use a magnifying glass to examine the heads and make sure the screw is actually turning. If you do strip the screw, you may still be able to remove it using a 1 mm flat screwdriver. NB the screwdriver sold on the ifixit site worked well for me removing the two screws that hold the case together, and failed utterly removing the screw that holds the battery clip in.

2) clean the pressure contacts on both the new battery and the phone using windex or rubbing alcohol and a q-tip. Make sure not to leave any cotton fiber behind.

3) The battery ifixit sent me had literally zero charge, and as a consequence it looked like the phone wasn't working. The screen was black and would only wake up when plugged in to the wall. This caused me lots of anguish and I ended up putting the phone together and taking it apart again three or four times. But once I let the new battery charge for 30 minutes it came to life and was fine.

glen, · Reply

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selina, · Reply

Very easy to do, thank you!!


vcadario, · Reply

Successful installation.

STEP 4: When removing the battery connector screw, I had to use heavy downward pressure because of heavy thread-lock applied to the screw during initial assembly. Battery supplied contained ~33% charge, which is normal for new batteries.

Phone powered up immediately when plugged in and is charging. Barring the new battery turning out to be somehow defective, this install was a complete success.

bwhoback, · Reply

Followed instructions to a T. New battery would cause reboots and CRC errors in the logs every 3 minutes or so.

Turns out the battery I got on eBay for this is defective as it would not charge. After replacing it back with the original Apple battery, no more reboots. I noticed the new battery was not charging as there is no lightning icon in the battery bar on the iPhone 4 screen when it was plugged into the adapter, it only showed that it was plugged in. The original battery has a lightning bolt icon in the battery bar, indicating it's charging when plugged in.

Thanks iFixit! Great instructions! Too bad my replacement battery from eBay does not work...

Matt, · Reply

This was my first iPhone repair. I was too cautious with the battery connector and spent longer than most would have fidgeting with it. The pressure sensor kept popping up a bit as I worked on the connector, and I wasn't sure if that was part of the tab I was supposed to leave alone. When I did get the battery out (I had to pry it out with one of the plastic shims) the pressure sensor went with it and for a moment I thought I had just destroyed this phone. Fortunately I replaced it and set the new battery, and the phone booted.

oahazmatt, · Reply

Ich habe die Batterie und den Home-button ersetzt und brauchte 1,5h dafür. Alles funktionierte.

Aber danach kam jedesmal nach circa 2 Minuten ein Reset und das iPhone bootete neu.

Das iPhone-Konfigurationsprogramm zeigte folgendes:

<Error>: CLTM: could not find Temperature property

<Error>: watchdog: did not receive thermal notification in time: 0x000003fe

In den Einstellungen, Allgemein, Info, Diagnose & Nutzung, Diagnose & Nutzungsdaten: CRC ERR!

Grund: Keine Kommunikation mit dem Temperatursensor im Akku. Dann WDT Reset.

Akku nochmals vorsichtig ausgebaut, die Buchse vom Mainboard hatte sich komplett gelöst!

Ich konnte die Buchse wieder anlöten, 4 Pins, aussen 2 für Spannung, innen die Daten.

Funktionierte nicht. Unter dem einen abgerissenen Datenpad ist ein 0,15mm Via, dass ich auch noch kontaktieren musste!

Jetzt kommt wieder z.B.: CLTM: stale battery temp: now = 1359865173, lastupdate = 271

Auch die Batterie selbst könnte defekt sein in einem solchen Fall.

Ich hoffe das hilft anderen :-) Gruss MartinW

MartinW, · Reply

WoW! Just finished replacing my iPhone 4 battery and I'm both relieved and impressed that it really was as simple as your site said it would be! There was a sketchy moment or two with the antennae piece but it all went pretty smoothly! This sure beats paying someone an outrageous fee to change the battery when it's easy to DIY!!! Thanks ifixit!

okhoosier, · Reply

From the tools list it seems as though the 00 driver is the one needed for the battery connector screw and the 000 is only needed if the external screws have been replaced. I ordered only the 00 driver which does not fit the battery connector at all. Luckily I had an eyeglass driver on hand that did the job. Which driver is required for which screws should be more clear.

mpeters04, · Reply

I did my battery today. It was easy. Battery was completely dead when I put it in, so I retried my old one to make sure I didn't mess up the install, then reinstalled the new one. After I plugged it in about 10 minutes, I finally got the charging indicator and 5 minutes after that, it turned on with the charger connected. My original battery was VERY glued in and took a bit of careful prying. It took about 4 hours to get to 100% charge. Very pleased with the outcome so far. I will update if I have any problems, but hopefully not!

superkep, · Reply

This is a great guide! The video and the step by step instructions makes this repair so easy.

kumosz, · Reply

This is a great guide! IMO the hardest part is getting the battery connector on the new battery in place. The plastic connecting the battery connector to the battery has to be very carefully folded and tucked between the battery and the pressure contact, all while keeping the pressure contact in the right place. (Use the old battery as a guide) Anyways, overall an awesome guide and very happy with the kit!

ericcox1, · Reply

First guide I have followed. Ten minutes, job done! Great job, many thanks

Rob Fogwill, · Reply

It would be helpful if the instructions/video addressed reassembly in more detail as the antenna connector doesn't just snap back into place and there are no photos showing how it fits. Other than that, the instructions are pretty simple.

clays4, · Reply

The new battery I received was dead and would not charge. I put my old one back in and all is well except for the old battery. Like a dumbass I ordered another one. I'll keep my fingers crossed.

ggoodlett, · Reply

i replaced the battery and now when i connect it to itunes, it says there is a problem and to contact apple for help. anyone know why this is?

69gunot, · Reply

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Ricardo Sinclair, · Reply

Thanks iFixit for the guide! It was a piece of cake to install the battery. I'm not sure why there so many comments about it being difficult. Thanks again!

Jacob Jordan, · Reply

Done :-)

The only tricky part was to put back the 2.5mm screw while aligning the battery connector and the pressure contact clip together with your finger!

huybui75, · Reply

The guide makes the process a piece of cake. The reassembly of the antenna connector should be shown in more detail. After closing the lid and pressing the top button, reboot started immediately and the SIM unlocking process went for a long (too long) time. I rebooted completely and everything came back to nominal.

jeagauthie, · Reply

Well, the process is not nearly as easy as the demo might suggest. Pay attention to the issues around proper screwdriver size as the screws are very easy to strip, especially the battery connection screw. Warming the glue behind the battery with a hairdryer really helped immensely as the battery was then easier to pry up and remove. Because of the short length of the battery connector screw, having a tweezer and magnifying glass helps. If your screwdriver is not not securely slotted into the head of the screw, make sure it is before you try to remove and re-install it. Unless you have patience and read the comments here carefully, your chances of experiencing a glitch are high.

Sarah, · Reply

Just completed. Mighty fiddly to work on. Only tricky part is re-positioning the battery connector so that all the items are flat and aligned for the screw to secure it. Used the plastic opener to help lift the battery out. You can hear the glue slowly giving up.

30 mins from start to finish. Now charging up. Thanks.

Alastair Dodwell, · Reply

I used your great kit, followed your helpful directions, and powered the phone back on while charging the new battery. The phone then indicated for about the first 20 minutes that it was "searching" for a cell signal even though it was able to use the cell network. (I made and received a call during this "searching" time.) It showed a strong wifi signal as usual; that also worked fine. This "searching" indicator problem just cleared up on its own. Once the indicator switched to show the usual 3G cell signal, the problem went away. Powered down and restarted, and after a couple seconds it showed the usual 3G cell signal. Now all seems well. Thanks much!

johngoldsborough, · Reply

Super Easy. Never could find the antennae they mentioned so I just pretended like it wasn't there and ignored that step. Phone works perfectly now.

bshanyelle, · Reply

Mine had no antenna clip either. What's up with that?


the metal clip covering the antenna, is it an important part or is it there just for protection ?

helio302, · Reply

I'd love to know the answer to this too. My phone had no antenna clip as shown in the pictures.


I just finished replacing the battery following the instructions provided. Phone came on with battery at 58 % charge. Anybody with reasonable fine motor skills can replace this battey easily.

edgarbuzzalino, · Reply

Worked just as documented. You do have to press down on the screws when removing them to avoid stripping the heads. One note - make sure the battery connector is aligned with the socket or you risk bending the pins when you press down.

droolinggeezer, · Reply

Fatto ho sostituito la batteria con una più potente ed in effetti mi dura quasi due giorni, mentre prima alla sera dovevo rimetterlo in carica

Gianfranco, · Reply

Can I use my old iPhone 4 battery and put it in another iPhone 4

Nathan, · Reply

I DID IT TOO!! iphone fell in my pool to the bottom, and I babied it for 7 days and nights, in all kinds of rice baths...it came on finally, then boom off....make a story short now, I was convinced it was the battery, go to stupid retail store, no, have to upgrade, get a new one they would not replace the iphone 4 battery...not done, can't open it, it was past the two year contract, yada yada, needed my phone, they couldn't do a data change without battery...hard headed french girl here, got the Liberation Kit from ifixit, it came as fast as I ordered it, bing bang, was not looking forward to such tedious work...but did it, and now the battery is charging...I will take it back to stupid people and have them transfer data, but just might back it up on itunes, which I hate, or I cloud, just as hard...what should I do now, I have a good phone again, too late, upgraded to the 5

dgiddyup, · Reply

I didn't get the guide, but just ordered the battery and screwdrivers, and watched the video (gotta say I like MJ - a no-nonsense woman...). I am not sure what all the issues are that are listed here - my repair went fine (though I did have a little bit of issue with the antenna that folks mentioned as well, but eventually it seemed to go into place). I gave the repair about a 50/50 chance of succeeding, but didn't really have much to lose, as my previous battery was barely lasting a couple of hours. When I reassembled it, voila, it worked fine, had about 33% charge. I have since used it for 2 weeks, and the battery life is almost like new, and everything works just fine. Thanks, ifixit!

jwa76, · Reply

The hardest part was getting the inside screw back on! If the Phillips screwdriver were magnetized, or if I'd had a pair of long tweezers, that would have gone a lot easier. But my phone no longer shuts off if I use it for more than a minute without connecting it to a power source. ;-)

I worked in the box to keep errant screws from getting away, that helped a lot. I also have one of those floor lamps with a magnifier, which helped as well. But I gotta say, MJ must have pre-loosened the battery connector in that video. It sure didn't lift off that easily for me.

lkollar, · Reply

"If the Phillips screwdriver were magnetized, or if I'd had a pair of long tweezers, that would have gone a lot easier. "

Simply place any screwdriver a few minutes on a magnet to magnetize!


I did it! I took my phone into a river for about 10 seconds and it completely killed the battery. After drying it out it turned on but couldn't hold any charge. Bought the kit and followed the guide and my phone has come back to life! Thank you so much!

lewisgates, · Reply

Thanks iFixit. From ordering the parts, to fast delivery to Australia, to the simple and easy to use instructions, changing the battery only took no more than 5 minutes.

I would definitely use iFixit again for other guides and parts.

genteled, · Reply

This guide worked like a charm. No prblems with relacing battery. Thanks for the phillips replacement screws! You guys never let me down.

Linda, · Reply

Good guide but more time should be spent on explaining the battery connector replacement and especially the replacing of the antenna which was breezed over too quickly. Other than that a great web site and you do a good service to the community at large. Thanks again.

d Clayton, · Reply

Just completed and phone is on & charging.

Step 4 - I'm pretty sure this was not a Philips 2.5mm screw as the kit supplied Philips head screwdriver was just destroying the head. Tried the Pentalube screwdriver & it was fine.

Phil Brierley, · Reply

Excellent service, thanks a lot! I ordered the repair kit the day before yesterday and it arrived this morning. With the help of the guide it worked like a charm, took me no longer than 10 minutes. The new battery came with 55% and is loading as I am writing this. Two thumbs up!

Christoph, · Reply

I thought it would take longer to do this change but to my surprise under 6 mins! I found my New online goto fit it store! Going to recommend to all my friends and family about ifitit you guys did it! Thanks you much!!



ntbizz, · Reply

First time opening my iPhone. The whole process took about 15 mins watching the video. The hardest part was tucking the battery cable down beside the battery so the connection would seat properly (use the supplied spluger to help with this).

I love fixing and repurposing stuff for added life. iFixit rocks!

ghokie, · Reply

Did this battery replacement this morning.Followed steps to the T and it was my first time.Took 15 mins and worked perfect.New battery was dead enough to not let phone turn on so i thought i had a problem, but after 30 mins of charging worked great.


ralph, · Reply

Did not find the antenna clip mentioned in the video and guide. Proceeded with reassembly regardless. Turned on iphone and no problems so far.

benjaminsalomon, · Reply

Today I replaced the battery in my iPhone 4. The phone is working properly but the battery will not charge.

I tried to reset several times but does not charge .

I reassembled the original battery and everything works even charging.

where am I doing wrong ?

could be the battery that does not work ?

I asked warranty replacement .

Now waiting for their response

Andrea Zigliani, · Reply

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

ajg35, · Reply

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


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.


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

I've changed some iPod screens as well and that has been the least pleasant experience so far. Glue and the main connector that has to be unwrapped and connected from the rear where you have no feel or control where it belongs.

iPhone repair is complex, but doable and has very few "traps".


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.


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

great instructions did it the first time

Mr J, · Reply

very informative i also visit http://itrepairguide.com/iphone-4-intern...…/

before this which is also too easy

saam, · Reply

the back won't budge! I cant get it off! what do i do?

Debbie, · 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

If the screw head is not buggered, press the tip of a hot soldering iron to the screw for a second or two. Don't get it too hot, or you'll damage something.


I was going through the take apart and after reassembly, it seems to just sit there an power cycle. It's as though the battery is no longer working. Any thoughts as to what I may have done wrong?

Social Apples, · Reply

Use #000 fine screw driver!!!

bfbogaert, · Reply

Use an #000 fine screw driver to remove two screws from iPhone 4s!

bfbogaert, · Reply

There is a metal bracket that secures the connector, that will be removed before the conector is unfasten

poseido, · Reply

When I used a plastic opening tool to gently disconnect the battery connector from its socket, I accidently remove the socket too.. Now what? :( ......

odisseas, · Reply

Stuck on step 4 can't unscrew the battery screw. stopped trying as all i seem to be doing is damaging the screw any tips as to how to approach this?

Tazziii, · Reply

my phone doesnt have a screw that connects the battery to the logic bored...is that a problem?

sadie, · Reply

I didn't need to remove the battery !! why would you take the battery away, the motor can be removed easily with the battery in place, and the whole process would take less than 2 minutes if you exclude the battery steps

Mohammed Fahmy, · Reply

I have trouble with the screw: I bought my used and now opened it for the first time. The screw is totally messed up, I can't unscrew it because the screwdriver doesn't fit in the screw/doesn't unscrew it. What can I do?

dfrisch86, · Reply

Installed new battery without a problem. Now it does not hold a charge for more than 4 hours. Phone works fine but what did I do wrong?

Mary OBrien, · Reply

I was VERY careful but the interior philips screw holding the battery in place but it stripped immediately. I see others have had this problem. What do I do now?!

tbodington, · Reply

I've tried three different #000 drivers but they don't fit this screw. Stuck now. Also blows my confidence about proceeding because even if I do get this off.... I see some even smaller Phillips head screw further along in the process

Jake, · Reply

If the screw is not damaged by previous attempts, the screw driver should fit perfectly. You can also tap the screw with a small mass to unlock.


There is a small black L-shaped bracket of some sort that tits between the battery connector and the motherboard socket, with a loop on one corner that sits betwen the riserand the battery connector. Remove this now, and do not forget to re install it on assembly.

stevesontheroad, · Reply

When reattaching this bracket make sure your Battery ribbon is already tucked underneath the battery with only the minimum clearance required. Then make sure the brackets overhang is over the battery ribbon. Dont try to slide it under the Ribbon.

crimney, · Reply

In Step 5 be EXTRA careful with the battery connector as the socket can come off extremely easy. This can mess up the replacement a little bit and cost you extra. Otherwise, this guide is excellent.

Good luck, fixers!

I fix(ed) it!

mateuszkus, · Reply

When removing this L shaped piece, it should be shown ON CAMERA where it came from and the exact position it was in while in the phone, I had to take 2 screws (not 1 like said in the video) out to get to this piece and once that second screw came up I didn't get a chance to see where this piece came from because it popped right out. I was extremely nervous but I believe I got it back in properly.

kellicaudill, · Reply

Just be careful when removing the battery with the plastic pull tab. On some units, they use so much glue that it's virtually impossible to take the battery.

In such an instance, you could use the iPod opening tool to assist (just be careful where you stick it!)

klubn, · Reply

use the iPod opening tool to pry gently under the battery from the outer edge of the phone and work towards the plastic tab. the tab is not actually attached to the battery itself, but a plastic sheet between the battery and inner frame. the adhesive on the battery tends to be under the edge of the battery nearest the center of the phone.

David Iwanicki, · Reply

Understand that the plastic pull tab is part of the phone. It sits under the battery like a tray and is not connected to the battery so it needs to stay in tact.

mattcfi, · Reply

once the iphone restarted, the battery was at 30%.

baldus, · Reply

This i think is the most diffucult part.

Because they use so much glue on it. I have to did this with so much force.

Glad that i didn't kill the circuit board when i took this out.

Shoung0690, · Reply

My battery was so firmly glued in, it took a long time to slowly pry it loose. Patience is the key to this process. I could see easily damaging the circuit board by using too much force. The plastic tab did not help at all.

The ribbon cable attaching the new battery to the battery connector clip is longer than the original. I clicked the clip into the socket first and then was very careful to fold the excess while putting the battery back in so the ribbon cable didn't kink. One kink in this could sever the battery leads.

drathbun, · Reply

My ribbon cable was also longer than the original. How did you get it to not kink while placing the batter back into the phone? That seems to be my only hang up at the moment


Piece of cake! The hardest part was being sure the outer pentalobe screws were actually turning and I wasn't stripping them. Battery was glued firmly in, so I loosened it from the outside instead of using the plastic pull-tab. I pre-bent the battery connector neck before putting it back in and had no problems with it fitting in. Getting the battery connector aligned with the antenna piece underneath was a bit fiddly. Got the case back on, put in the new screws, and powered the phone on without problem. Had 40% charge, all seems well. Yippee!

chezbuttons, · Reply

Do NOT use a spudger or similar type of prising tool to try lift up the battery. Instead, just warm up the whole area with a hot air gun or hair drier to soften the glue.

The reason why I say don't use an implement to try lift the battery is because far too many times I've seen punctured & bent batteries come in to this workshop that have to be thrown out for safety reasons. It only takes a grain of sand, or a burr on the spudger and you're risking a potential cell rupture and potential fire.

Just use a bit of heat ( not a lot! ) to soften up the glue and it'll come away with the plastic pull tab.

Paul L Daniels, · Reply

These instructions don't mention putting the 2.5mm screw back in. I found this very challenging because it is so short, so very difficult to line it up to get it back in the hole, and very easy to drop it inside the phone. Take care.

robshopping, · Reply

Non problem with reassembly - just took patience - my is that the phone now does not want to charge the battery. It shows taht the battery is dead and charger needs to be connected but does not charge?

What have I not done coreectly - or at least what can I check to determine the problem?


Richard Bebee, · Reply

Apparently it's not necessary to remove the battery, but try at least (I'm curious).

The battery was stuck (too much glue) and the plastic tab didn't help, and I ripped it...

So I use the plastic opening tool on the other side to remove really gently the battery, it was really really stucked with the glue... Now I'll know when I'll need to change it.

I put a little piece of tape to repair the plastic tab for the next time.

For the other part of the guide, it was a piece of cake and I'm a bad bad handyman :)

Thanks for the guide!

tasseb, · Reply

You are right. This is the reason why their is simpler guide: iPhone 4 Battery disconnection to be used when there is no necessity for removing the battery. Disconnection is sufficient for many fixes except replacement of the battery!


you have to remove the battery for digitizer replacement, however i would suggest removing it at the very last stage, i.e. step 24. cause it is easier to remove without the logic board being there

Winnie Lee,

Adhesive was holding battery VERY firmly, so during this step I used a hair blow dryer on low setting to carefully heat up the device. Then used the plastic tool to gently but firmly pry up one place on each edge. At first it felt like barely anything was happening, but within a few tries the adhesive gave away easily and the battery came right out.

misc, · Reply

The new battery from iFixit already had the cable properly folded, but before inserting the battery I used the plastic tool to press the fold closer to the battery body.

misc, · Reply

Before inserting the battery I put the contact clip into position. It has a hooked shape on one side which fits between the socket and the folded battery cable. If you try to position it AFTER the battery is installed the whole process is much more difficult. I used a tweezers to hold it in place while inserting the battery.

misc, · Reply

When inserting the battery I started by guiding the folded cable into position against the side of the contact clip, then proceeded to lay the battery in position. This made it very easy to have all parts in their original positions -- no need to fiddle with the battery cable or contact clip afterwards.

misc, · Reply

When pressing the battery connector into the socket, the first time I pressed from bottom to top. That didn't work because there is a little tab at the top of the connector which must fit into a tiny notch or else the connector won't lay flat properly. Pressing the connector from top to bottom worked easily.

misc, · Reply

Needle-nosed tweezers were very helpful when lining up the screws. After everything was reassembled I tried powering up the device, but the battery had insufficient charge. I plugged it in and immediately the screen displayed a battery with a thin red line (illustrating no charge). After 25 minutes the device sprang to life and indicated a 10% charge. At 70 minutes the battery indicated 30% charge, and at that rate should be fully charged in under 4 hours. It's fixed!!

misc, · Reply

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