iFixit - Answers With Device "iPhone 12"

iPhone 12: Sostituire bobina wireless e altro..

Sun, 22 Feb 2026 09:04:25 -0700

Vorrei sapere da voi se sostituendo la bobina di ricarica wireless ci sono problemi di riconoscimento o di pagamento Apple Pay come ho letto da qualche parte.

Anzi, modifico la domanda: quali sono gli elementi che proprio non è possibile sostituire senza perdere funzionalità importanti?

iPhone 12: Problemi batteria iPhone 12 dopo cambio display

Sun, 17 Aug 2025 04:42:51 -0700

Qualche giorno fa ho cambiato il display del mio IPhone 12 a seguito di una frattura. Da subito ho notato che il telefono si surriscalda più del solito e in pochissimi minuti, soprattutto nella parte inferiore del display.

Inoltre anche la batteria si scarica più veloce rispetto a prima. Un installazione fatta male o un display scadente possono effettivamente portare danni alla batteria? Sono consapevole che il display non è originale ma non so se c’è una correlazione

⟐ Answered agosto 17, 2025 at 4:42 GMT-7

iPhone 12: perchè la batteria dura meno di quella che ha 5 anni apple?

Fri, 13 Jun 2025 12:32:03 -0700

ho cambiato da qualche giorno la batteria del mio iphone 12 pro, per la prima volta ho preso questa batteria su ifixit, la batteria non dura nulla, mi si scarica come niente e poi si surriscalda moltissimo, sono molto deluso da questa spesa perche la durata della batteria è praticamente uguale a quella della batteria originale che aveve 5 anni.

iPhone 12: Perchè il mio iPhone fa uno strano click quando premo

Thu, 24 Oct 2024 14:51:27 -0700

Il mio iphone (comprato 3 giorni fa ricondizionato) fa uno strano “click” se premo al centro con il pollice sullo schermo e l’indice sul logo. Cosa potrebbe essere?

⟐ Answered ottobre 24, 2024 at 14:51 GMT-7

iPhone 12: Fotocamera 1x vibra e non mette a fuoco

Sun, 21 May 2023 04:34:42 -0700

Salve a tutti,

dopo il mio solito giro in moto domenicale, la fotocamera 1x del mio iPhone 12 ha smesso di funzionare correttamente. Continua a vibrare e non mette a fuoco. Allego un video della fotocamera.

Cosa potrebbe essere?

Grazie.

P.S: la fotocamera 0.5x funziona perfettamente senza problemi

iPhone 12: Come testare cip batteria originale dissaldato?

Thu, 20 Oct 2022 20:11:55 -0700

Ho dissaldato il cip della batteria originale del mio iPhone 12, ho paura di installarlo su una nuova batteria da montare sul mio iPhone ho paura che ai possa essere danneggiato dissaldandolo! Come posso fare? Ho paura di arrecare danni irreparabili al mio iPhone!!! Aiuto!!!

⟐ Answered ottobre 20, 2022 at 20:11 GMT-7

iPhone 12: Fotocamere nere dopo aggiornamento

Wed, 21 Sep 2022 23:46:03 -0700

Dopo l’aggiornamento le fotocamere non si visualizzano più, schermata nera, prima dell’aggiornamento ad ios16 funzionavano… consigli?

⟐ Answered settembre 21, 2022 at 23:46 GMT-7

iPhone 12: inconveniente con la crema per il viso

Fri, 22 Jul 2022 04:25:29 -0700

Salve,circa tre mesetti fa mi è caduta una goccia di maschera per il viso sul mio speacker superiore(quello vicino alla fotocamera per intenderci)ed è rimasta una macchia che non riesco a far andare via,sembra polvere ma sicuramente sono i residui della maschera..

come posso fare?

⟐ Answered luglio 22, 2022 at 4:25 GMT-7

iPhone 12: Changing the screen, OEM replacement doesn't match up

Wed, 13 May 2026 05:24:55 -0700

My GF bought an iPhone 12 (basic model) off of a third party dealer on Amazon March of this year. About 4 months later the screen started to flash intermittently and the touch screen would become non responsive. From talking to folks, it sounded like it needed a new screen, so I ordered one. I took off the old screen using the ifixit.com video. Partway though I noticed the video and photo guide mentioned steps to remove a panel and a cable that attached the camera/mic/speaker assemble, but the unit I was repairing didn't have that assemble attached to the screen. I continued on and when I unpacked the replacement OEM screen, I found the OEM one had tabs on it, and screw mount points for the camera assemble I mentioned. The old screen had none of this, and the tabs won't fit into the body of the iPhone. I also noticed the old screen didn't have the two tabs towards the bottom that the two pentalope screws go through when you first start to take it apart. I did power up the unit after I attached the OEM screen and it works, but I wondering what the deal is with the differences in the screens. I checked the other iPhone 12 models but the base model i have does match most of the repair guide layout, but I cannot use the OEM screen. I'm going to try and get the serial number to confirm this is actually a real iPhone and not a counterfeit. Has anyone come across this before? Here are a couple reference photos. The old screen (I ended up breaking it while removing it) and the OEM one attached, the red circles show the camera assemble screw points, which are not on the removed screen.

⟐ Answered maggio 13, 2026 at 5:24 GMT-7

iPhone 12: Restart every 3 minutes after water

Mon, 20 Apr 2026 08:43:18 -0700

Hello,

i am right now in holidays and my iPhone 12 got a little bit wet. After that it restarts every 3 minutes. So i looked it up and my panic report told me thermalmonitord. How can i arrange now what sensor is faulty? Also is there like a savemode so if i‘m home i could take a backup?

Greetings

{"bug_type":"210","timestamp":"2023-11-27 12:24:34.00 +0500","os_version":"iPhone OS 16.7.2 (20H115)","roots_installed":0,"incident_id":"E97F1F8E-97D5-4524-9CA0-BAE7D1C681B7"}

{

"build" : "iPhone OS 16.7.2 (20H115)",

"product" : "iPhone13,2",

"socId" : "8101",

"socRevision" : "11",

"incident" : "E97F1F8E-97D5-4524-9CA0-BAE7D1C681B7",

"crashReporterKey" : "18855d0161bc64382b6d3c908e65521f32e0b13e",

"kernel" : "Darwin Kernel Version 22.6.0: Wed Oct 4 21:55:46 PDT 2023; root:xnu-8796.142.1.701.11~1\/RELEASE_ARM64_T8101",

"date" : "2023-11-27 12:24:34.99 +0500",

"panicString" : "panic(cpu 2 caller 0xfffffff02c62b8e8): userspace watchdog timeout: no successful checkins from thermalmonitord\nservice returned not alive with context : is_alive_func returned unhealthy : current 5fffffffff, mask 3fffffffff, expected 3fffffffff. SD: 1 BC: 1 RC: 0 BS: 1, Missing sensor(s): Prs0 \nservice: backboardd, total successful checkins in 194 seconds: 19, last successful checkin: 0 seconds ago\nservice: SpringBoard, total successful checkins in 169 seconds: 17, last successful checkin: 0 seconds ago\nservice: mediaserverd, total successful checkins in 194 seconds: 18, last successful checkin: 0 seconds ago\nservice: logd, total successful checkins in 194 seconds: 19, last successful checkin: 0 seconds ago\nservice: thermalmonitord, no successful checkins in 194 seconds\nservice: runningboardd, total successful checkins in 194 seconds: 19, last successful checkin: 0 seconds ago\nservice: wifid, total successful checkins in 194 seconds: 18, last successful checkin: 0 seconds ago\nservice: configd, total successful checkins in 194 seconds: 18, last successful checkin: 0 seconds\nDebugger message: panic\nMemory ID: 0xff\nOS release type: User\nOS version: 20H115\nKernel version: Darwin Kernel Version 22.6.0: Wed Oct 4 21:55:46 PDT 2023; root:xnu-8796.142.1.701.11~1\/RELEASE_ARM64_T8101\nFileset Kernelcache UUID: C5D2A5F46EB1E5A63AF8FDE73B4AD5E9\nKernel UUID: 510BBA43-3466-3323-88BD-6B231BB89712\nBoot session UUID: E97F1F8E-97D5-4524-9CA0-BAE7D1C681B7\niBoot version: iBoot-8422.142.2.700.1\nsecure boot?: YES\nroots installed: 0\nPaniclog version: 14\nKernelCache slide: 0x0000000023fa4000\nKernelCache base: 0xfffffff02afa8000\nKernel slide: 0x0000000023fac000\nKernel text base: 0xfffffff02afb0000\nKernel text exec slide: 0x0000000024d14000\nKernel

⟐ Answer accepted aprile 20, 2026 at 8:43 GMT-7

iPhone 12: Forgot iPhone 12’s password

Tue, 14 Apr 2026 22:06:37 -0700

I don’t remember my apple id

⟐ Commented aprile 14, 2026 at 22:06 GMT-7

iPhone 12: Why is FaceID not working after screen replacement?

Sun, 12 Apr 2026 13:23:49 -0700

I replaced my cracked screen with a display from iFixit, and made sure to use the front camera part from the old phone and put it in the new display. However, the phone now says "unable to determine if display is genuine" and it disabled FaceID. I was under the assumption that if you used the original front camera part FaceID would still work. Thank you for your help!

⟐ Answered aprile 12, 2026 at 13:23 GMT-7

iPhone 12: iPhone Camera Blurry After Removing Broken Glass

Wed, 08 Apr 2026 16:42:27 -0700

I cracked the camera glass on my iPhone, and after removing the old glass with a blow dryer and some tweezers, I noticed the camera won’t focus. Is this because I don’t have the glass cover on? I am waiting on a new one to ship right now. Also, I tried to clean the lens with a microfiber cloth and isopropyl alcohol, but that didn’t seem to help.

⟐ Commented aprile 08, 2026 at 16:42 GMT-7

iPhone 12: My phone goes into a bootloop anytime it's plugged in

Mon, 06 Apr 2026 01:03:36 -0700

Title says it all, anytime I plug a lightning port into my phone (connected to a charger or not), the phone freezes, then restarts, shows the apple logo, then black screens over and over, and if it's still plugged in, eventually it leads to the recovery screen, before restarting the boot-loop shortly after ; on top of that, unless I have airpods / a bluetooth sound device connected to my phone, videos do not play and there's no sound or haptics from the phone.

To try and diagnose the issue, I tried pretty much everything, replacing the lightning connector altogether, the loudspeaker, the taptic engine, even the light sensor on the screen but no dice, the issue still happens and I don't know what to do

The issue popped out of nowhere too, it worked one day, went to bed and it stopped working the next.

Other than that, the phone works fine, but trying to look at the panic logs didn't provide anything of use either

Lemme know if you have any solutions to this!

here, idk if that’ll help

⟐ Answered aprile 06, 2026 at 1:03 GMT-7

iPhone 12: Mix and match iPhone battery

Mon, 23 Feb 2026 21:23:38 -0700

I have an iPhone 12 which still has 100% maximum capacity. I was just curious if I could put an iPhone 11’s 3110 mAh battery, or an iPhone 11 Pro’s 3046 mAh battery, or and iPhone 13’s 3227 mAh battery, or an iPhone 13 Pro’s 3095 mAh battery, or any other battery (from this list: https://www.knowyourmobile.com/user-guid... ) that would potentially increase my Phone’s battery life?

⟐ Commented febbraio 23, 2026 at 21:23 GMT-7

iPhone 12: How do I create a speaker using the speakers from the iPhone 12?

Mon, 16 Feb 2026 23:05:47 -0700

Hello!

I know this seems like a strange request, here's a bit of background so you can understand what I'm hoping to do:

I'm a mastering engineer, the last creative step in the music production process. To over-simplify my work, I take a stereo mix of a song and bring it up to competitive loudness while adding subtle enhancements and/or corrections to the mix in order to achieve optimal translation across all playback mediums.

I want to create a stereo speaker device with iPhone 12 speakers that I can plug into a 1/4" jack, where I'd normally plug in headphones, that I can use to check how the mastered song sounds coming off of phone speakers, as those are often tricky to master for because of their limited frequency response.

I figured the iPhone 12 would be a perfect baseline since it's modern enough to sound good/decent but not too advanced that it wouldn't beat any newer phone models coming out these days. Thus, if my mastered song sounds good coming out of the iPhone 12 stereo speaker device, it'll probably sound good/translate well to any other mobile phone speakers.

I understand I need to buy the iPhone12 loudspeaker and earpiece speaker to get the L/R channels/stereo playback and that they usually use a flex cable connect for audio+power via the logicboard of the phone, but I'd love any advice I can get on how I can connect+power them into a simple speaker that just functions off a simple stereo 1/8" or 1/4" aux input connection.

Thanks in advance for any help!

-Sam

⟐ Answer edited febbraio 16, 2026 at 23:05 GMT-7

iPhone 12: My iPhone 12 is not turning on but apple logo and is chargeing

Sat, 07 Feb 2026 21:58:37 -0700

my iphone 12 will not turn on and on apple logo

⟐ Answered febbraio 07, 2026 at 21:58 GMT-7

iPhone 12: What is the name of this part and should I get it replaced?

Wed, 04 Feb 2026 10:49:22 -0700

I'm not sure what this part of the iPhone 12 is called or how important it is. I'd like to know what it is, if it's important and if I should get it replaced. It's located below the taptic engine. The upper image shows the part that is broken. Half of it has broken off. I have no idea how important it is.

⟐ Answered febbraio 04, 2026 at 10:49 GMT-7

iPhone 12: iPhone 12 battery at 1% / not charging after replacement, old works

Fri, 30 Jan 2026 10:09:11 -0700

I'm trying to replace the battery on my iphone 12. The original battery works fine but had been used heavily and wasn't lasting as long as it used to.

I installed the replacement battery (from ifixit), but the phone shows up as 1% and there is no "lightning bolt" charge icon when the phone is plugged in. The battery menu in settings shows the phone as charging during periods when I leave it plugged in though. The phone locks and reboots periodically while plugged in, and 0% remaining" is displayed on the lock screen.

I saw other threads online with similar symptoms from different model iphones that indicated that I might have damaged surrounding components or circuitry. I took me a bit to get the new battery connector installed, but I did not see any loose pieces or visible connector damage on the phone.

I decided to test this by disconnecting the new battery and reconnecting the old battery. If the circuitry was damaged, I would expect both batteries to fail, however the old battery reports percentage, charges and the phone seems to operate fine when its installed.

I've tried reconnecting the two different batteries several times, and have tested with the screen on and off to try and rule out shorts as a possible cause.

The ifixit battery shows 3.78V on a multimeter when measured at the connector, while the original battery shows 3.8V (battery is rated at 3.83V). I inspected the connector on the new battery and can't see any obvious damage.

Any ideas on possible causes?
Next steps to debug?
Is it possible that there is an issue with the new battery?

⟐ Answered gennaio 30, 2026 at 10:09 GMT-7

iPhone 12: iPhone 12 buttons replacement guide

Wed, 28 Jan 2026 10:32:12 -0700

Hi everyone

I replaced the buttons with new ones, there are no gaps, everything is fine, but I'm lost, I can't understand how long the screws are needed…

Everything is fine, but when I tighten the screw to the end, the button is not pressed, although everything is in place

Could you please tell me if I need to buy these screws separately? And are they sold on AliExpress? What length of screws for buttons do I need?

⟐ Commented gennaio 28, 2026 at 10:32 GMT-7