⟐ Commented setembro 08, 2024 at 2:47 GMT-7

If you scroll down on the following Article, Apple explains that:

Battery health unknown

If iOS is unable to determine the device battery health, you'll see this message:

This iPhone is unable to determine battery health. An Apple Authorized Service Provider can service the battery. More about service options…

This may be due to having an improperly installed battery or an unknown battery part.

https://support.apple.com/en-us/HT208387

Someone else got experiences on this yet?

⟐ Commented outubro 05, 2023 at 4:26 GMT-7

thanks

⟐ Answered maio 27, 2022 at 5:40 GMT-7

⟐ Answer edited fevereiro 23, 2021 at 1:19 GMT-7

⟐ Answer accepted dezembro 04, 2020 at 15:40 GMT-7

⟐ Commented janeiro 20, 2024 at 10:38 GMT-7

Obviously, it can be done by replacing a few chips on the logic board and reprogramming the NAND chip or something like that.

But, my question is, can you somehow reprogram the EXISTING chip that came on the iPhone or is a new one needed? I saw a forum somewhere where someone had tried this but never updated his post.

Also, some special tools and software are needed for this type of project. I would love to know specifically what kind of software and tools are needed for this kind of job, and also, where I could buy them.

There are plenty of sites that sell this kind of material, but I want to know a reputable site that sells quality products and someone who doesn’t scam you into giving them your credit card information but never gives you a product.

I plan on repairing and flipping phones later in life as a side-job and depending on how much the chips cost that need replacing, doing iCloud unlock by hardware replacement. I don’t know how much the chips cost or anything like that, but considering you can get an iCloud locked iPhone 7 for about $50 and sell it for around $400, this may be profitable.

Thanks for your time and answers, they are much appreciated!

⟐ Commented maio 18, 2025 at 18:00 GMT-7

My issue is - i work in a repairshop and we do a lot of iphone repair among others. I've been using a semi original screen for the repairs i've done - original LCD and Digitizer, the rest is high copy. There has never been issues with these screens ever since iphone 6s arrived on the market. But, they all have unoriginal Touch-IC on them (on the screen, if unoriginal, it'll be all blank) and again, they always worked fine for us.

Now, a few days ago Apple released IOS 11 - and since then, i've had 2 phones who, between 30 seconds to 1 minute after updating to IOS 11, lost touch completely. I've had 10 different screens on them, none working in touch - but if i take a broken original screen and plug it on, everything works just fine. DFU restore does not help, maybe momentarily, but touch will stop working again within short time.

I've been asking colleagues and others if they experinced anything like that, but none have, because IOS 11 has only been around for a few days, and no one wants to update right away. It's just weird that 2 phones in 2 days have done the same. It is as if they bumped up the voltage in the screen by just a little bit in the IOS, so the unoriginal IC's will fail. Maybe i'm just going crazy and seeing conspiracys, so any one who experienced anything like this, please come forward :)

The same issue was on LG nexus 5x, however this was an error in the production and an inferior NAND that could not stand the tiny bump up in the voltage during the update, and LG swapped boards under warranty - but this is not the same situation, i'm just saying it's been seen before :)

Hi ya'll..

Sorry for my absence - and thank you for all your contributions! It seems that good guy Apple (irony may occur) have solved this one for us on IOS 11.0.3. If your or your customers phone decide to throw touch, force update to 11.0.3, and all should be good. This is only regarding iphone 6S, none other. The other models/cases in this thread are sadly mostly results of faulty screen or an error made by the technician :)

But, we have another problem facing us: iphone 7/7+ - if you are so unlucky to break your homebutton or sensor flex, your phone will not boot, it will just stay at the apple logo. You simply cannot just go changing them with aftermarket parts or OEM parts, it must be fully original (not chinese-original), which means 1. much, much harder to get, 2. much, much more expensive. This does, however, not effect screens, you can easily use the high copy grade - as long as the small parts are ORIGINAL! So, fair warning my friends, be very careful not to bust anything when taking the screens apart. Basically, Apple reinstated error code 53, but not as an itunes error, more as a phone that'll brick when booting. If you switch to original parts, it boots just fine again. Apple has not yet solved this in the latest update like they did touch-ic error on iphone 6S, and who knows if they will at all. Back in the day, they got convicted into removing error 53 (if you had aftermarket homebutton installed on ip6, your phone would brick on updating in itunes, until original button was mounted), as it was a violation of consumer rights, as Apple was making it possible, only for Apple to fix it. We are facing the same problem here, basically - and as i see it, there are 2 solutions: Apple will have to change this (as this haven't been a problem the since ip7/7+ release, but is a new thing in thread with ios 11), or we be very careful, and buy original parts when we mess up. My personal opinion: get a lawsuit going, so we get the possibility and freedom of using the parts we want (and the customers want in most cases, as it is much cheaper for them as well), back!

⟐ Commented abril 17, 2018 at 15:01 GMT-7

⟐ Commented janeiro 20, 2026 at 17:33 GMT-7

⟐ Commented setembro 05, 2022 at 10:13 GMT-7

I mean they both use 4 pin connectors? I would assume iOS could detect a 7 battery and use it correctly(charging , etc) but I don't know for sure.

As for the battery connector, maybe soldering is possible?

Thanks!

⟐ Commented março 13, 2025 at 2:53 GMT-7

Whilst testing devices after screen replacement I have seen some rapid battery drain and in some cases full shutdowns.

There is nothing to suggest the devices weren't already like this (as we know the 6s battery situation) however I'm wondering can a screen casue this.

I have recently changed my screen supplier, it doesn't happen on each 6s but ive seen it 3-4times now in past few months and I am curious has anyone else experienced this.

Today turned device on after screen replacement and was 41%, this soon became 39% and whilst testing front camera it shut down. When powered up again it was at 10%

Thanks in advance

⟐ Answered novembro 11, 2021 at 5:06 GMT-7

Have had a couple of strange issues, I thought I'd check in with the community and see if anyone has experienced them..

An iPhone 6S and an iPhone 7. Presented as battery replacements. After replacing the batteries, the phone would charge as normal. However when the phone goes flat, it won't charge anymore.

Battery life was as expected of a new one.

⟐ Commented fevereiro 11, 2023 at 10:37 GMT-7

First i want to apologize for my english.

So I replace lcd and touch screen (also with 3D touch). LCD and touch ID works perfectly but 3D touch doesn´t works correctly, specially on sides of the screen. Does some one similar problem?

⟐ Commented outubro 04, 2020 at 15:31 GMT-7

My iPhone 6s fell this past weekend and since then has been stuck in a boot loop (apple logo appears and disappears) whenever it is plugged in to an outlet.

Ultimately I'd like to pull the data out of my phone via iTunes backup, but the problem I'm facing is that my iPhone does not seem to boot up when plugged in to my PC's usb port.

Anyone have an idea how I can enact atleast a bootloop on a PC or get my turned off iPhone recognized in iTunes?

I tried finding answers via search, but nothing seems to touch on the issue of my iPhone not booting when plugged in to a usb port on the PC.

Thank you.

⟐ Commented dezembro 23, 2025 at 20:59 GMT-7

⟐ Commented setembro 05, 2020 at 7:35 GMT-7

Because if you buy an iCloud locked but everything is okay with it lets say I bought it for $100 and I iCloud unlock it and that costs $30 you only pay $130 for a perfectly good iPhone instead of $900, thanks!

⟐ Commented janeiro 09, 2020 at 17:49 GMT-7

⟐ Commented novembro 21, 2023 at 16:44 GMT-7

I repair a lot of iPhones , ipads, but sometimes when i have to change a battery there's a sort of smell like polish remover coming from the battery .

The odour is not very annoying but when i sniff/breathe this odour, I feel a few headaches during 1 hour or less.

This odour can also be breathed sometimes on new batteries (Which are defective) or used batteries and sometimes also when taking off the batteries when it is broken

What this smell is composed of ?

Thanks

⟐ Commented janeiro 31, 2022 at 3:47 GMT-7

- Dave

⟐ Comment deleted abril 26, 2018 at 7:25 GMT-7