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Released September 16, 2016. Models A1661, A1784, and A1785. Available in 32, 128, or 256 GB configurations in Rose gold, gold, silver, black, jet black, and (Product)Red.

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Stuck on Apple logo

I was given an iPhone 7 plus for a screen replacement.

Bloke handed it over and pretty much rushed off.

So with that, I thought I should switch the phone on and test everything thoroughly before opening. To find that the phone is stuck on the Apple logo.

So contacted him and asked about it, and he said to just do the screen replacement.

So I did, with the same results.

As it happened, I had another 7+ here which I tried the front camera flex in it, and it fired up, so explained it would need a new camera, but would need to get one in. He wanted me to take the other customers camera and put it in his, which I said is never going to happen.

So the part arrived, and still the same thing, stuck on the Apple logo. So am going to get another one in, incase it's faulty.

But is there anything else that it could be?

Thanks

Beantwoord! View the answer Dit probleem heb ik ook

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Score 5

Commentaar:

There has been issues with iOS 11 and non official iPhone 7 parts causing problems, it could very well be down to this.

door

Can restoring with iTunes resolve it, or brick it?

door

restoring through DFU mode has helped my in the past, but its not a guarantee, seems apple have put something into iOS 11 to make 3rd party screen repairs difficult

door

Screen replacements seem to be fine for me, it's more to do with these small parts which I think I'm having issues with?

door

Sunil,

What happened to your phone...before the problem started? Was it worked on (screen replacement?), liquid damaged, dropped, software updated?

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Warning: this is going to be a long answer, to cater for the different known causes of iPhone 7/7+ being stuck at the Apple. Although extensive, we do not claim it to be exhaustive as there may be other causes that we've not come across.

So.. we've seen many iPhone 7 devices stuck on the Apple and unable to complete the boot process completely.

For those immediately advocating a board repair: you are jumping to conclusions and it is a simplistic and dangerous practice as it may result in doing unecessary repairs or on the contrary not enough, and loosing data.

About the iPhone 7/7+ and why this could be happening: it is a very "prissy" device and many hardware failures and software bugs can send it into an endless boot-loop sequence or cause it to get stuck at the Apple. There are some steps that can help narrow it down a bit. First, connect the iPhone to your computer and start iTunes.

  1. The iPhone does not communicate with iTunes: you can skip trying to update it and even restoring it. It is probably a hardware level failure. Still, if you don't need the data or are confident you have a back-up, you can try a restore. If a restore fails, you can skip to the end of this answer.
  2. The iPhone can communicate with iTunes; you can see a prompt saying "unlock or enter password or trust" and you can possibly hear notifications or feel it vibrate, but it is still stuck at the Apple. In this case, you can attempt a software update:
    1. Turn the iPhone off by pressing "power button" + "volume down button" until the screen is black.
    2. Wait 3-4 seconds after it shuts off, release both buttons. The phone should stay off.
    3. Now press and hold "volume down" button and connect to the computer using your lightning-to-USB cable. The phone will start, then show "connect to iTunes" and a prompt in iTunes will appear, with a choice to "restore" or "update."
    4. Click on "update" if you want to keep your data. You can attempt "restore" if data is not important but beware that in this case there is no going back and getting data from your device.
    5. After you choose update or restore, leave it connected. iTunes will download the latest software version which can take a few minutes to a several hours depending on the speed of your Internet connection. Then iTunes will update (or restore if you chose this option and don't want data) your device. Once done, the device will either go back to working normally or remain stuck at the Apple. If you attempted an update, not a restore, and failed to fix your device, you either have a software corruption that only a restore will repair, or a hardware failure.
    6. If the iPhone does not remain off after Step 2, you can release the power button, keep holding the volume down button, and immediately plug the cable into the computer before the iPhone had had a chance to restart. Then follow Step 3.

If you have communication with iTunes, data not important, and an update failed, you can repeat the above but choose "restore" instead of "update."

If data is important but not highly critical, you need to take it to a knowledgeable repair tech. They can:

  1. Try a known good original home button (this will allow the iPhone to function normally but without home button and Touch ID) - this is a common cause for this type of failure;
  2. Try a known good front camera (possible but not a likely cause);
  3. Even try a known good screen;
  4. Test power consumption and data transfer from wall charger AND computer;
  5. Replace audio Codec IC while repairing the weak traces. NOT reflowing that lC like in the video. This is not a permanent fix or not a fix at all if the trace is broken; and the failure can show up again in most cases. Which will require the repetition of the step. Constant repetitions can then cause the board to fail or develop other issues.

#Finally, if data is VERY critical, do not attempt any of the above. Send it to someone specialized in data recovery. What a good tech does to save a phone does not necessarily apply to saving data. Another way of approaching this problem may be necessary.

And I don't mean HDD data recovery specialists. They may be good at recovering data from dead HDDs, but not from dead or failing iOS devices. We've had our share getting data from iPhones and iPads after some of those "HDD specialists" failed in their attempt, and in two cases maiming the iPhone board beyond repair.

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iPhone 7 and 7 plus boot looping most common cause in my experience is a fatal one---an internal short within the required baseband CPU---a chip that is unique to each device and cannot be replaced. This fault is characterized by a "baseband style" boot loop that lasts 15-20 seconds.

Second most common is audio ic fault---characterized by a long boot loop lasting 3 minutes.

There are MANY other causes--bad screen, bad fcam assembly, charger damage, water damage, flash memory corruption etc. If I had a phone with the short bootloop I'd rule out parts and look for a short circuit near BB_CPU. If it was long boot loop I'd send it out for audio ic work.

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Score 2

Commentaar:

The problem is a SHORT that is INTERNAL to the chip, not a drop and cracked joint. Reflow is never repair, and in this case it can ONLY do harm.

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As many have mentioned, you should really try restoring it through iTunes seeing as its a software problem and not faulty parts.

If that doesn't help than it might be one of those problems that's just theoretically impossible to solve. Apple even when asked about these kind of problems, don't have a clue either. And they made the phone.

So if that doesn't work then your left with being forced to replace the faulty parts. But that to has to many variable to account. When it come to whats causing it to not work.

Good luck!

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Score 1

Commentaar:

Tried restoring in dfu mode. Still the same. iTunes recognises the phone, home button "vibrates" when pressed.

I'm stuck now!

door

Huh, thats a tuffy. Because it should have been a bug in the OS when it was installed. But since you wiped it in DFU mode, that means it should've wiped it clean.

I'm honestly stumped, i hope somone else can help you. If not I think you'll have to just go to a Solid phone repair place to have them test it and see what the hells the problem. Because you don't want to be buying every new part for the phone just to see if its one of them thats faulty.

So get the phone repair shop to test their parts on it instead.

Wish ya the best of luck, Mate!

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Duane,

It sounds like you need an original camera flex cable to fix issue. I say that because your issue seems to be related to my question on testing 7/7+ screens BEFORE installing them. I usually just connect the Dig & LCD cables to test screen. However, on my 1st 7+ screen change I noticed right away that the phone was stuck on the Apple logo when trying to test it. I went ahead and finished the screen replacement & connected all the cables, including the camera flex...and it worked fine. So it appears that the camera flex has to be connected to even test the screen before replacement.

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You can't really obtain genuine parts either.

door

Well, depends on who you buy from. I have a couple of suppliers that sell genuine parts (screens and cameras) because the Apple logos are blotted out by ink. When I use those screens and small parts, I rarely have any issues.

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Ive had issue where it takes along time to come on from the Apple logo.. up to 5 min or greater !.. has anyone else experienced this

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took over 15mins one time...

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@fixit357 I know it has been a long time, but in case you’re still wondering what was the issue, I’d say the most probable cause is damaged home button. Either the home button cable itself, or the extension built into the screen assembly.

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carefully inspect the home button closely, see if any damage.

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Voeg je antwoord toe

Duane zal eeuwig dankbaar zijn.
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