⟐ Commented February 15, 2026 at 23:37 MST

I bought a new battery and it powered up fine, but quickly got very warm and started to die very quickly. I plugged it in, powered it off, and left it overnight. I was not able to turn it on the next day. The new battery does now not ready anything accross the sides of the ribbon cable end. I havn't taken this battery apart yet.

Does this mean that the phone is damaging the ribbon cables (drawing too many amps) from a bridge in the phone itself. Any ideas?

Thanks

⟐ Commented December 01, 2025 at 18:35 MST

Hi all

I was trying to repair my flashlight, but I accidentally cut this cable. I’m wondering what its function is.

and I even replaced the flashlight with a new one, but it still doesn’t work. Is there any specific reason for that?

⟐ Edited by author November 12, 2025 at 8:57 MST

I found out today that a small metal pin on the bottom of my iphone broke off. It doesn't seem to affect the phone at all, but can someone explain to me what it's for?

I can see that it was supposed to touch a dot on the back of the screen.

I have marked the small metal pin in yellow at the bottom of the phone.

I hope you can help me answer this question, thanks

⟐ Commented November 02, 2025 at 16:53 MST

• One screen had a good display, but the touch didn’t work.
• One screen showed nothing at all—completely blank.
• One showed the Apple logo, then went black.
• One just displayed colored lines.

At this point, I was going crazy.

Then I happened to get another iPhone 12 mini. I tested the screen that was previously totally blank on the new phone—and it worked perfectly! The display and touch were fully functional. So I went back and tried the same screen on the original phone again, but still just a blank screen.

I should mention: the original iPhone 12 mini did have a semi-working screen before I started. The display was mostly fine, but it had two vertical green and yellow lines running top to bottom.

So now I’m wondering—what could be wrong with the first iPhone 12 mini that’s preventing it from working with the replacement screens?

Would you like help diagnosing the issue, too?

⟐ Answered October 01, 2025 at 20:05 MST

can anybody suggest a decent aftermarket brand for a battery replacement?

Seems like some newer batteries, do show also % and can be "installed" in the repair menu, meaning no fuzz oh having any sort of warnings.

Thanks.

⟐ Commented September 30, 2025 at 0:57 MST

I have an iPhone 12 mini, and I’ve noticed that the top layer of the OLED screen is starting to detach in one corner. Just to clarify, I’m not using any screen protector — it’s the actual screen itself that’s coming apart. The display still works perfectly with no dead pixels or touch issues.

It seems like only the outermost layer is separating slightly from the rest of the screen. The phone hasn’t been dropped or exposed to water.

I’ve attached an image where you can clearly see the peeling area.

Has anyone experienced something similar?

Could this get worse over time?

Is it possible to repair or replace just that top layer, or would I need to replace the whole OLED display?

Any advice or shared experiences would be greatly appreciated.

Thanks in advance!

More images

⟐ Answered September 19, 2025 at 6:28 MST

⟐ Answered September 14, 2025 at 18:36 MST

⟐ Answered September 03, 2025 at 20:25 MST

⟐ Marked as duplicate August 23, 2025 at 17:38 MST

⟐ Answered August 12, 2025 at 2:09 MST

what do i need to replace in the original case to get cellular working? thanks.

⟐ Commented August 08, 2025 at 5:28 MST

Is this just an easy fix by just replacing the back glass, or I need to do more work?

⟐ Answer accepted August 07, 2025 at 10:46 MST

I was replacing the battery on my iPhone 12 while following the iFixit guide. Unfortunately, the guide didn’t mention that OLED replacement screens for this model can be significantly thicker than the previous models.

As a result, when I tried to open the phone, I mistakenly started prying between the layers of the screen itself instead of between the screen and the frame. That ended up damaging the display.

Later, when I replaced the screen, I noticed that the proximity sensor was also damaged, and now Face ID no longer works.

To make things worse, Stolen Device Service has been activated, and I can’t disable it without working Face ID. So I’m stuck in a loop — I can’t fix or access anything critical, and I can’t turn off the security feature either.

I’d really appreciate any advice from the iFixit team or community on what I can do next. This all happened while following the iFixit guide, and a small note about the screen thickness could have prevented it.

Thank you!

⟐ Answered August 03, 2025 at 11:26 MST

⟐ Answered July 28, 2025 at 3:04 MST

⟐ Answer edited July 10, 2025 at 5:16 MST

⟐ Answered July 06, 2025 at 8:20 MST

⟐ Commented June 25, 2025 at 16:00 MST

After its done, it does not start up. I notice when i plug in the phone, the back is hot.

I got a used iphone 12 mini motherboard off of ebay, but when i put it in it also does not start, the back is also hot. I have giving up on this phone, but just want to know what could have cause it to not start up. Thanks.

⟐ Answered June 22, 2025 at 14:53 MST