iFixit - Answers With Device "iPhone"

iPhone 3G: iPhone 3G keeps losing signal/service

Sat, 04 Feb 2017 11:06:23 -0700

iPhone 3G loses signal randomly and for no obvious reason, everything else works just fine.

Until a few days ago the phone has never been dropped. Then it was dropped from about 1 meter, twice...
The phone is just over 1 year old

Waiting
- Nothing..
Rebooting
- Brings service back for a while
Activating and deactivating flight mode
- Brings service back for a while
Re-seating sim-card
- Brought back service initially, but didn't solve problem

Loose cable?
- I don't see how that fits in. I mean, re-booting gets the service back. If it was a loose cable it shouldn't help to re-boot..
??
My observations indicate that the phone is only ever on 3G network. Could the problem be in or around the UMTS chip?
- Considering logic board replacement or contacting someone doing BGA soldering.

Yesterday I changed the whole dock assembly to see if that could fix the problem.

Today it lost connection again. So it didn't work.

Now I'm considering to get a new iPhone or doing a logicboard replacement on this one.. Also I could find someone local that does BGA soldering and ask them to find the chip that has to be loose on the logicboard...

Either that or I'll decide that I can't afford it because I just bought an iPad....

I also added a third theory.

Either way, thanks again for all your help and comments!

⟐ Commented Şubat 04, 2017 at 11:06 GMT-7

iPhone X: iPhone X constantly restarts then battery shows 0%!

Tue, 15 Apr 2025 23:42:45 -0700

I have recently updated to iOS 12.3.1 last week and during the past 2 days, my phone has been restarting, then the battery would show that it is at 1% on the status bar and 0% on the wake screen. There is even that lag usually when the battery drops to 1% which is normal for the X and 8 I believe. If I keep using the phone or charge, it will either reset again or the battery would jump up to where it normally is. The battery percentage wont go to 2% if I keep it charging because 1% is not the actual percent left. The only thing I can think of is installing the update with just under 50% battery. I have reset all settings and once that did not work, I have restored the phone from a previous date. Any assistance or tips is appreciated before bringing in to repair or even replace the battery.

⟐ Answered Nisan 15, 2025 at 23:42 GMT-7

iPhone 4: Foggy Lens on back

Wed, 01 Jun 2016 12:49:20 -0700

The camera on my iPhone was working great until one day I noticed that the pictures had become extremely foggy. I thought that I may have gotten something sticky on the back of it, but nothing will wipe it off. I suspect that some moisture may have gotten back there, though it was not exposed to any more moisture than normal... I might have had it in my pocket in the rain briefly, but it never was underwater for any amount of time.

Has anyone had a problem like this? Is there anything I can do to resolve it?

⟐ Answer edited Haziran 01, 2016 at 12:49 GMT-7

iPhone 4: My iPhone 4 has new kind of screw

Fri, 03 Jun 2016 14:58:01 -0700

My iPhone 4 has a new kind of screw. What type are they and what tools do I need to remove them? I included photos here: http://yfrog.com/0rx9qjx

⟐ Edited Haziran 03, 2016 at 14:58 GMT-7

iPhone 4S: Microphone not working ONLY on video recording DX HELP!

Tue, 09 Aug 2016 09:41:36 -0700

I'm pretty confused and somewhat dismayed. I have just repaired my friend's mom's screen on her broken iPhone 4S. The screen works beautifully, can make calls and receive calls, and hear the microphone on both ends. Voice memos work. Now, the problem is, as I am about to give the phone back to my friend to give to his mom, it is not fully working. The microphone does not work properly when recording a video. I have searched and searched and searched for a solution or a similar problem as to this, nothing. The dismaying part is that I am going to be assertive and tell him what is wrong with it, and not leave it unfinished. Without a solution, I am very upset with my work as I try to handle something like this in the most professional manner. I am very very confused and would really like some advice, I don't even know which microphone to replace, or if it even is a microphone?? it shouldn't be because the microphone works! Someone, with experience please respond! is there an ifixit phone number I can call?

⟐ Commented Ağustos 09, 2016 at 9:41 GMT-7

iPhone 5s: iPhone 5s ghost touching, new screen = same problem

Wed, 30 Jul 2025 23:15:09 -0700

Hey y'all. I'm getting very irritated at my iPhone. About 3 months after the warranty ran out, my phone started acting weird.

The very first time I noticed the ghost touching, it only lasted a few seconds so I would reboot and it was gone for a while. Just recently it started happening everyday anytime. Never had water damage, always always In a case that protects everything. I did drop my phone a few times since owning it, but no damage was ever found on the phone (in the case), no glass breakage either.

Basically, my phone will start going crazy, opening random apps, hitting random keyboard buttons, hitting links in safari, just the typical ghost touching. Sometimes it will just be randomly unresponsive to touch. As a temp fix, I have to hit the sleep button a few times, then I can use my phone for X minutes until it starts again.

I took my screen off to look inside, and nothing was loose or disconnected. I tried everything, brushing the display connections, disconnecting the battery, resetting the connections, restore the phone, etc.

I just put on a new, OEM display from Apple and What do you know, same thing happening !!!! New display, same ghost touching and random unresponsiveness. 99% of the people having the same issue said to replace the screen, and I can now rule that one out.

Does anyone have any idea what the deal is??? Could it be the battery for some reason? It seem to occur the longer I use the phone.

Thanks for any help. I'm gonna end up throwing this phone on the ground and smashing it!!

⟐ Commented Temmuz 30, 2025 at 23:15 GMT-7

iPhone 6: Touch ID ORIGINAL home button not working after screen replacement

Thu, 10 Jun 2021 22:19:52 -0700

Lately I have had problems with the touch ID not working after I did a screen replacement. The home buttons are original.

What is causing the problem? I think it's ios 10 related since I've only had the problem with ios 10 devices, but I am not sure how to avoid it.

OP here. I re-use the original flex cable that is found on the metal shield.. I don't think the problem is the cable.

⟐ Answer edited Haziran 10, 2021 at 22:19 GMT-7

iPhone 5: Auto-brightness toggle is missing from settings. Why?

Tue, 12 Jan 2021 00:07:08 -0700

I recently changed the screen on my iPhone 5, and now the Auto-brightness toggle is completely missing. I can change brightness at will, and there are no other odd behaviors. I have tried reinstalling the screen, swapping out my old camera/sensor assembly and the new one, but that doesn't seem to have any effect.

⟐ Answered Ocak 12, 2021 at 0:07 GMT-7

iPhone 4S: Getting too hot after sim card insert

Thu, 16 Jan 2020 03:58:48 -0700

iphone4s 32gb white . it getting too hot when i put the sim card insert . it only remain in searching mode and battery is draining very fast like in 1 min 6% drained and get too hot from battery jack and the near by and middle bezel also from below the sim card . before it was working fine. it was dropped on the floor but working after accident . it worked for approx 6 days. now showing this symptom .

⟐ Answered Ocak 16, 2020 at 3:58 GMT-7

iPhone 7: iPhone 7 Boot Loop issue with Front Camera/Proximity sensor/Ear Piece Flex

Wed, 24 Jul 2024 12:45:15 -0700

I have an iphone 7 that is stuck in a bootloop after screen replacement. Ive narrowed it down to the proximity/front camera/earpiece flex. When its disconnected phone powers up fine but when reconnected goes straight back into bootloop again. Have tried replacing flex cable twice with no luck so figure its a mainboard issue?

⟐ Answer edited Temmuz 24, 2024 at 12:45 GMT-7

iPhone 4S: How good is the quality on the replacement screen from iFixit?

Sat, 20 Nov 2021 14:08:52 -0700

I have a broken screen, and bought a new one from ebay. The screen looks blue-ish, and the feeling is not really good. I want a screen that looks and works like the original one. Will the screen from iFixit do it for me?

⟐ Commented Kasım 20, 2021 at 14:08 GMT-7

iPhone 5s: iPhone 5s stuck on "searching" even without sim card

Fri, 25 Jun 2021 08:27:01 -0700

My iPhone 5s suddenly stuck on "Searching" for the cellular network, even when I eject the SIM card the phone doesn't display "No Sim".

Everything else works fine.

I have no idea whats happening with this phone !!

i did a reset to the settings, and network as well, and no fix,

i notice that when i update the phone via ota it said "Software Update Unavailable"

Software Update is not available at this time. try again later.

⟐ Commented Haziran 25, 2021 at 8:27 GMT-7

iPhone 7 Plus: Phone restarts when I try to call someone?

Thu, 11 Feb 2021 19:18:45 -0700

Replaced my screen and now when I call someone or someone calls me I can't hear them and the phone restarts. Also I can't answer the phone

⟐ Commented Şubat 11, 2021 at 19:18 GMT-7

iPhone 7 Plus: Slow and freezing after screen replacement

Sat, 10 Sep 2022 05:57:33 -0700

Hi there,

I have replaced a few iPhone screens over my time and until today I have had no problems.

I have changed my screen and now the phone is very slow on start up and then will freeze or respond very slowly when I try do anything on the home screen or try to respond to any pop up notifications, however when I am in the settings menu for example I can do anything with no crashing!

I have erased all content and settings, I have even tried with the old screen again and it does the exact same thing.

Thanks in advance!

⟐ Commented Eylül 10, 2022 at 5:57 GMT-7

iPhone 5s: Stuck in boot loop

Wed, 11 Dec 2024 14:51:16 -0700

Ok this is a little long winded, and I have tried advice from other posts to no avail. I took receipt of an iPhone 5s with broken screen that would only boot as far as the apple logo (initial thoughts were the screen) after fitting the new screen still the same, I tried the new screen in my iPhone 5s no problems.

I have tried a hard reset, but it will not power down by the sleep/wake power button even if held for 5 minutes the only way to get it to power off is raise the screen and disconnect the battery also not recognised by iTunes, my next thoughts were the battery new battery tried still stuck in loop.

Anybody got any idea’s…………

⟐ Commented Aralık 11, 2024 at 14:51 GMT-7

iPhone 3G: horizontal 'lines' on screen, after a slight 'knock' to back

Mon, 05 Feb 2024 23:59:33 -0700

Hi, I recently managed to knock my phone against a low post in the street. I knocked the back of the phone whilst it was in my pocket.

I've now noticed that there 'lines' at the bottom of the screen - I assume this is possibly due to a dodgy connection to the LCD matrix?

1. Do you think it's fixable [no other visible 'damage' to the screen?

2. or is it possible damage to the logic board?

The 'lines' are on every screen and have the same colour - dark blue? They are even getting longer, though I don't use the phone now?

Thanks in advance for any help - compassion ;^)

⟐ Commented Şubat 05, 2024 at 23:59 GMT-7

iPhone 6s Plus: Will 6 Plus battery work on 6s plus

Mon, 02 Oct 2023 06:26:04 -0700

I got a 6s Plus 64GB

OEM of 6s Plus is at 2750mah

Planning to change my battery due to excessive drainage

Will a iphone 6 Plus battery at 2915mah work on a 6s plus

⟐ Answered Ekim 02, 2023 at 6:26 GMT-7

iPhone 7: iPhone 7 iOS 11.0.1 Boot Loop?

Tue, 04 Jan 2022 18:13:08 -0700

A few days after the iOS 11 update, my iPhone 7's cellular signal has been inconsistent stating "no service" or "searching" for long periods of time. This happens inside my home and outside. Usually I'm able to connect to my cellular network inside my house, but it's been malfunctioning lately.

TO FIX THE CELLULAR PROBLEM, I'VE TRIED...

Restarting the iPhone
Removing the SIM card, gently wiping the SIM card, and blowing inside the SIM card tray hole
Resetting Network Settings multiple times, and turning ON and OFF Airplane Mode a numerous amount of times.
Checking for a Carrier Update
Fiddling with cellular settings such as turning OFF LTE or changing settings within the LTE settings.
Fiddling with Date and Time settings because apparently setting the date and time automatically causes issues.
None of these resolved the problem.

If I tried updating my phone to iOS 11.0.1 when the phone was not connected to a cellular network, even if I was connected to wi-fi, I was prompted with the Unable to Verify Update iOS. Yesterday, I miraculously obtained a cellular connection and was able to update my phone to iOS 11.0.1 thinking it would fix my cellular problem. It didn't. When I woke up this morning, the phone was back to "searching" or "no service" even though it was already connected to the Verizon network before and after the update.

During the day, my phone turned itself OFF and ON again prompting me to enter my passcode. This happened about two times within a four minute interval. A few minutes later, my phone turns OFF again and attempts to restart, but this time it never passes the Apple logo. It displays the Apple logo for a few seconds and then the Apple Logo would disappear for few seconds. It would then display the logo again and then disappear. This cycle never ends.

If i try to put the phone in recovery mode while not connected to a PC, it shuts the phone off.
If i try to put the phone in Recovery Mode while connected to iTunes, iTunes will prompt me to "Update" my phone stating that it will attempt to reinstall iOS while also keeping my files. Once it tries to install, the iPhone restarts showing the Apple logo with a loading circle underneath, which turns into the loading bar that shows up when you're updating your phone. The loading bar shows up for less than a second then the screen goes black, and the iPhone restarts and automatically launches Recovery Mode. The 4013 error is displayed on-screen and iTunes stops recognizing that the phone is plugged in. Keep in mind that the iPhone is still on the Recovery Mode screen. After reconnecting the lightning cable, iTunes then prompts that the phone cannot be "Updated" so the only other option is to factory reset the iPhone, erase all data and settings, and optionally restore from a back up after the factory reset. The same things happens as before.
I've tried other programs such as 3u Tools to install iOS. I've tried reinstalling the new BETA iOS 11.1 and the more stable iOS 10.3.3. The same glitch happens where the phone displays the loading bar momentarily before restarting and heading back to Recovery Mode ultimately voiding the update.

Has anyone dealt with this or would like to provide any more things to try? I've never had a problem with an iPhone before when it comes to software, but could it be possible that this is a hardware issue?

⟐ Answer deleted Ocak 04, 2022 at 18:13 GMT-7

iPhone SE: iPhone SE front camera mic static.

Fri, 10 Dec 2021 04:33:26 -0700

I recently had an iPhone SE in for repair, the front camera microphone was faulty I did advise her to go back to apple with it being under warranty but she asked me to check it for her as she was unable to go back to one of their stores. I tested a new front camera flex but had the same issue (static noise) tested about 4 parts with no joy. I also have an SE and tested my front camera flex on the device and it worked fine, these parts were for the 5S but when I ordered them the description told me that it was compatible with the SE. Just wondering if anybody else is having the same issue and if they managed to repair it?

⟐ Answered Aralık 10, 2021 at 4:33 GMT-7

iPhone 5: white bars at the top of my screen

Wed, 14 Aug 2019 14:45:32 -0700

I replaced my cracked screen, but with the new screen I have horizontal white bars at the top of the xcreen. They only cover the top 1/8 inch of the screen. I've tried re-seating the screen ribbons to the phone, but the problem does not go away.

⟐ Commented Ağustos 14, 2019 at 14:45 GMT-7