iFixit - Answers With Device "iPad 4"

iPad 4 GSM: The backlight on iPad isn't working.

Sun, 19 Oct 2025 05:41:34 -0700

When I turn on or restart my iPad, the Apple logo appears for a second, and then the backlight turns off, and I can only see the image if I shine a flashlight on the screen. What should I do?

https://youtu.be/aIq_DkSqkAs

iPad 4 GSM: Ipad 4 Irregular Voltages and 0 amp draw

Wed, 08 Oct 2025 19:04:21 -0700

Hi, any suggestion is highly appreciated because I'm in a state of depression rn thankyou :D.

Disclaimer, I usually do a laptop repairs so mobile repair is not my specialty, sorry if my approach you found somewhat dumb.

the ipad comes with no display problem with 0 amp current draw, upon checking i found the voltages around the board (when the power button is pressed) is pulsing like 3v and goes back to 0v and so on.

this symptom is look like the ipad itself is trying to boot but failed, then i began to search if there is a short circuit across the board, alas there is no short at all and all voltages look like present and healthy except for the pulsing issue.

*the pulsing issue persists when the ipad is only powered by the battery. (with and without the power cable attached)

because i have no idea where to start diagnose further, i read in many forums that U2 tristar is likely to be the culprit, with that idea I tried to replace the tristar with a new one and the problem is of course still persist.

what i have already checked are

the battery is known good
charging port no problem (tried another one)

* no short circuit

power button is good i think (i've tried jumper it from the on off from the power button connector and the problem still the same)

i think the real culprit will be U8100 which is the PMU because the PMU is responsible for power delivery to those component on the logicboard (right?) but im not sure because i don't have enough evidence yet to replace that PMU

or maybe the communications board (where the baseband chip located i suppose) can cause the issue?

⟐ Answered October 08, 2025 at 19:04 MST

iPad 4 Wi-Fi: Is a hot plate for screen removal the way to go?

Fri, 11 Jul 2025 09:54:15 -0700

I've been repairing iPad screens for a while now. I've been using a hot air gun. I was told that a hot plate is the way to go and makes removing the screen that much easier and quicker. Do you guys think this is true? Is it worth the investment to buy one? What temperature do you set it at? Do you heat both sides? And how long do you leave it on for? Thanks!

⟐ Commented July 11, 2025 at 9:54 MST

iPad 4: The iPad is black and doesn’t even charge

Thu, 28 Nov 2024 17:36:43 -0700

The iPad doesn’t turn on the screen is black and doesn’t want to charge ether

iPad 4: My iPad 4th generation

Mon, 05 Aug 2024 03:05:34 -0700

Can the I pad 4 be updated? I can't use any apps on it. How can I fix it?

⟐ Answered August 05, 2024 at 3:05 MST

iPad 4 Wi-Fi: iPad won't turn on at all with perfectly working battery

Tue, 09 Apr 2024 12:26:59 -0700

My iPad 4th gen 16gb wifi won't turn on at all or show that it is charging when plugged in with a perfectly working battery, i'd like any help i can get.

⟐ Answered April 09, 2024 at 12:26 MST

iPad 4 Wi-Fi: Ipad asks two-factor verification every 5 secon after change password.

Thu, 04 Apr 2024 04:57:11 -0700

Hi Dear ,

I have an ipad 4, today Iphone 8 plus asked me to change my password , reason ;your password is too old i, well ı changed my password.

I came home this evening and my tablet asked me two code verification code constantly, when i am writing my password, it says verification again.

And this is loop.

Please help me ,

Thanks and kind regards.

⟐ Answered April 04, 2024 at 4:57 MST

iPad 4: Ipad charges when off but won't charge when booted up

Mon, 29 Jan 2024 16:10:54 -0700

Hi fellow repair people.

I have stumbled on a puzzling situation after replacing a battery on an ipad 4 A1458

The ipad seems to charge perfectly fine while off but when it is booted into the OS it doesn't charge but it is recognized by both Itunes and my laptop. It also seems to have a hard time recognizing the home button.

Any tips, tricks or insight into the root problem would be greatly appreciated.

⟐ Commented January 29, 2024 at 16:10 MST

iPad 4 Wi-Fi: Turn on iPad without battery

Mon, 22 Jan 2024 11:40:13 -0700

I bought a used iPad without battery inside, can I turn it on(at least apple logo)or view it in iTunes

⟐ Answer accepted January 22, 2024 at 11:40 MST

iPad 4 Wi-Fi: Black screen no power light tried reset nothing seems to working

Wed, 27 Dec 2023 22:13:48 -0700

There is black screen on my iPad no sign of life , I tried all the reset options nothing worked, I had this happen before and reset was very easy then , This time nothing worked and no green power light or showing any life left at all don’t know get new one or worth getting this one fixed again ??

⟐ Commented December 27, 2023 at 22:13 MST

iPad 4 Wi-Fi: How can I update my browser as apple no longer supports ios?

Sat, 16 Sep 2023 05:05:16 -0700

Browser for ipad 4. It's working perfectly but as I cannot upgrade browser I can't upgrade apps. Any solutions?

⟐ Answer edited September 16, 2023 at 5:05 MST

iPad 4: activation Lock not my Apple ID

Sun, 27 Aug 2023 18:24:00 -0700

I don't know who Apple ID is locking me out of my ipad 4. I thought I set it up. Apple Store wasn't any help. Screen say Activation Lock

⟐ Answered August 27, 2023 at 18:24 MST

iPad 4 Wi-Fi: LCD cable connection point

Mon, 19 Jun 2023 20:16:16 -0700

When replacing my digitiser and reinserting the LCD cable to the connector- the small grey bit not the door but just near it broke slightly. This boy covers the LCD cable connector and a little piece has broken off. Will this affect the connection. I have a photo but it won’t load here

iPad 4 Wi-Fi: I replaced my iPad 4 screen and now it won't

Mon, 19 Jun 2023 20:09:27 -0700

I just changed my screen on my iPad 4, during the initial repair my iPad jumped on, I didn't want to damage it so I waited for the battery to run empty. This took several days. then I still waited even longer to get to it, at least 4- 5 weeks.

Finally, I continue the repair, run into a couple of snags. The digitizer cable where the little black plastic thingy that locks the cable in broke. It's so small I could not get it to click down because it came loose. However, I laid it in there and placed the tape back and other tape to hold the cable in. It seem to be in there so I connected the screen cables back. I notice the speaker cable next to the home connector also came loose when pulling back the black tape, but I placed tape on top to hold it down as well. Then screwed the Digitizer down and it seems to be holding everything in place. I've been recharging for about a hour just to check if everything is working properly before I fix in the screen completely. The first thing I notice is that it won't turn on. And It's seems that everything is in place, but it won't turn on.

Do you think the digitizer connector is not in good enough, and would that even effect the battery? Or should I just continue to charge it overnight. because the battery has been out for about 4 to 5 weeks.

Or do you think that the little black plastic piece that is a lock for the connector on the Digitizer is the problem? And can it operate without the little black plastic lock. And can tape replace the little black plastic lock instead? These parts are so delicate, I noticed. What protocol should I do next to know if the battery is charging or that I've connected everything properly. Any suggestions to help will be greatly appreciated.

Thanks

Tanesha

Unfortunately I don't have an iPad schematic. The digitizer cable is not broken it's the little black plastic thing that locks it. it's really fragile. and it's on the logic board. The cable itself goes in fine and it seems snug in place as well. And my battery was completely discharged. So I'm charging it. How can I check to know if the battery is actually charging up? And does that plastic connector lock be causing the problem?

⟐ Answered June 19, 2023 at 20:09 MST

iPad 4: home button flex cable connection

Mon, 19 Jun 2023 19:51:18 -0700

on the ipad 4..... what is the home button flex cable plugged into?

a. logic board

b. digitizer

c. LCD

d. speaker module

I know its a little different, but I would like to be 100% sure.

⟐ Answered June 19, 2023 at 19:51 MST

iPad 4 Wi-Fi: After doing my repairs (battery and screen) I have problems

Thu, 25 May 2023 09:16:02 -0700

Now that I’ve replaced everything and got the tablet back together, the touch screen won’t work and the power button doesn’t work. Also the adhesive that holds the screen down isn’t working to well

⟐ Commented May 25, 2023 at 9:16 MST

iPad 4 Wi-Fi: Is iPad 4 LCD the same as the iPad 3?

Tue, 11 Apr 2023 15:36:36 -0700

I know the digitizer for the iPad 4 is the same as the iPad 3. We have repaired iPad 4 and have had no problems. But is the LCD the same connection and part? Can I use the iPad 3 LCD's I Have in stock to replace a broken LCD for a client?

⟐ Answered April 11, 2023 at 15:36 MST

iPad 4 Wi-Fi: My iPad shows charging symbol, but is not charging...

Wed, 08 Feb 2023 19:29:12 -0700

My iPad shows charging symbol, but is not charging...

See image, it is showing the charging symbol, but not charging... What is going on?

⟐ Commented February 08, 2023 at 19:29 MST

iPad 4: Is there a way to sell/part out a locked iPad? (Locked via iCloud)

Sun, 01 Jan 2023 04:47:13 -0700

I got an iPad 4 locked via icloud passcode for dirt cheap at a garage sale last week. I have a lot of experience taking apart just about anything with a power cord, but I was not sure about the best place to flip this, is it ebay? is it craigslist? . Thanks for all the help guys!

⟐ Commented January 01, 2023 at 4:47 MST

iPad 4 Wi-Fi: Can I upgrade my ipad4 from 32k to 64k?

Fri, 30 Dec 2022 16:28:47 -0700

Can I upgrade my ssd drive from 32 to 64 on my ipad4?

⟐ Answered December 30, 2022 at 16:28 MST