AmpSentrix Core with Tag-on Flex | iPhone Battery Replacement

[@Faysalariss]

Wow, MS always comes with great solutions, makes this repair much easier.

[@e-texwireless]

I followed the instructions to the tee and, although I'm not seeing the "Unable to verify" message, the new core battery still shows the old battery's health. I figured the tag-on flex was defective, so I ordered another one and installed it, again allowing the phone to boot from the lightning cable, giving it time for the tag-on to program, then rebooting the phone. But I'm still getting "Your battery's health is significantly degraded" along with the old battery's health percentage. Sounds like I need to get the battery programmer. Any ideas? UPDATE: I was able to get this to work by installing a new AmpSentrix battery, turning the device on to prompt the "Not a genuine part" message. Then I turned it off, reinstalled the new Core battery, and voila! Battery health at 100%, no "Not a genuine part" message. Very happy!

[@MunchkinCatBami]

Are you done with ios 16.5?

[@e-texwireless]

@@MunchkinCatBami Yes, it is running iOS 16.5. Interesting note: Initially, I could not get it to charge past 95%, regardless of how long I left it on the charger. The next morning it was completely dead with Battery Health showing a sudden drop to 0% during the night. However, in the next charging session I was able to achieve 100%, with normal usage readings ever since.

[@MunchkinCatBami]

@@e-texwireless Great for you. I contacted them and they will do an update in the next few weeks.

[@e-texwireless]

@@MunchkinCatBami Okay, here's another update. I checked the battery stats this morning and noticed that shortly after 12 am the battery took a nosedive from 95% to 10%. This wasn't a gradual decrease, but a sudden drop. The screen was locked and no apps were open. I bought this device to refurb and sell in my shop and was hoping I could preserve the battery health functionality with the tag on flex. Now I'm afraid it's a little too unstable for that purpose.

[@Akalyzer]

Does the new battery will show the real health or it will remain at 100% forever?

[@juergenwest]

I was curious about this as well.

[@fbnmndz]

@@juergenwest curious as well, did you guys get an answer?

[@danydjlast]

Quiero saber lo mismo , nunca he visto que bajen de 100% , alguien podría decirnos si es verdad, pero con pruebas ! No especulaciónes ?

[@TheSlavenger]

it will decrease, it will not stay at 100 forever

[@TheSlavenger]

@@juergenwest it will decrease, it will not stay at 100 forever

[@marcuskjellerup9905]

If you remove the Tag On, could you please verify what reading you get with 3U Tools? When we have tried this, 3U Tools reads old battery value is the Tag On is nog connected to the iPhone.

[@adeguntoro]

is this one time use ? or i can use it as many i want to ?

[@idanslab9541]

Funciona con todos los modelos? Puede haber alguna actualización que revierta los porcentajes de la vida de la batería como sucedió recientemente? Gracias

[@SaulCevada]

Si actualizas y no dejaste el flex regresara el % de la vida que tenia antes tu batería que quitaste.

[@danydjlast]

@@SaulCevada con la programadora icopy no pasa eso ?

[@emilianoperez8562]

Con la Jcid queda 100% aunque actualices. Y usas solo un tag on para todos los equipos. Con este sistema nuevo tenes que dejar el tag on si no queres que el cliente venga al mes que viene al actualizar su equipo.

[@orett.x]

Do you ever try the tag on flex without an original bms board

[@vamoshe3]

Hello, I wanted to know if it is suitable for all versions of iPhone?

[@MobileSentrix]

yes, but the iOS 17.4 and newer phones need to be reset after the process shown to fix the data. Thanks Apple lol

[@christophermanners3838]

Will it work if you take the flexs out and factory reset later on

[@patriciovarela8794]

Great video. Thanks Can I reuse the tag flex on the same model with a different phone?

[@pedromarquezmunguia8604]

Same asking

[@donevangravelle]

@@pedromarquezmunguia8604 yes

[@jromero747]

Yes u can

[@panoslazz]

does this work with ios 18.2?

[@matiasdiaz7786]

Usted sabe si el flex es de un unico uso o si es reutilizable?

[@leonelgianinetti3178]

no le saques, si le sacas y se actualiza el software pierde la condicion, si se lo dejas puesto no

[@SilasTh3Weird]

Iv'e been using MS parts for year s and they are great, if you don't have a spot welder can you solder the bms board to the new core?

[@toystorybro]

**Troubleshooting** If the old battery health still appears and the battery notification persists, you will need to re-trigger the iOS stack battery notification window. To do so, remove the new Ampsentrix battery (with its tag on flex) and install any new test battery with a functional BMS. This will prompt iOS to recognize a battery with a new serial and allow you to restart and repeat steps in the video.

[@swyampatel4815]

What is the tool used to prep the surface for spot welding?

[@spencerparkes7328]

what and where can i get that grinding bit, i have a dremmel. thanks

[@carranzagustavo]

Hola una pregunta con este tipo de bateria ya no es necesaria la programadora ? y el flex se tiene que quedar puesto ? muchas gracias saludos

[@PEREGRINO45]

El tag es reutilizable? Ósea puedo hacer el proceso con otra batería o es de un solo uso?

[@miamirepair5821]

When you do software update the battery % go to the battery original %. I don't recommend to remove the Tag

[@Rkelani]

can i just solder it using a solder iron ?

[@floridaapplemacprosinc.2224]

as connections with power can get hot, solder is not very reliable. especially if someone uses low melt by accident. battery spot welders are cheap. under $50-75 I think

[@carlosovalle8899]

yes, but you need a different soldering wire, different alloy otherwise regular soldering wire will not stick to the battery.

[@AndrewR-y9h]

Here is the big question. Does the battery health decrease over time as it should?

[@celedoniomanubag9440]

Nyesss

[@LightningRepairs]

Are the tag on flex's reusable, if you remove them post-repair?

[@martindigital6418]

Lemme know if you get an answer on this my dude

[@MobileSentrix]

leave them in the phone as there are several reasons to do this. You get one with each battery as well. so there's no need to hold on to them.

[@LightningRepairs]

@@MobileSentrix what are those reasons? I would rather buy the AmpSentrix Core batteries w/o tag-on flex & save $1 on every battery + be able to center the battery properly instead of scootch it too far to the left, to accommodate the extra thickness of the additional flex material. If there are actual reasons to leave it in, I'll happily do that :-) I just want to know and understand what those reasons are.

[@Faysalariss]

@@MobileSentrix I would like to know the reasons as well, removing it eliminates a weak point making it more reliable

[@Felix-ge4sd]

@@MobileSentrixso do we leave the tag on flex in or not? Video says to remove it, but you seem to tell us to leave it in

[@Tuckerpellicci]

If you wanted to program the battery using the tag on flex, would it work the same? In other words, does the included tag on flex work the same as the previous Qianli tag-on flex models?

[@harleygoodies9001]

I wonder what happens if you update the OS?

[@jromero747]

Stays the same

[@Fludescorner]

Could someone please help tell me what that rotary tool that he is using is called? Can I get it on amazon?

[@JesseJoesika-z9e]

what if i dont have the old core? any help?

[@PhoneFlipProfits]

Is the tag on flex reusable?

[@oscarmartinez8435]

What if the original battery has been removed. What can be done about restoring the battery health information?

[@LightningRepairs]

Nothing. Besides paying an Apple Authorized place for a battery replacement. (UBREAKIFIX, CPR, Best Buy, Apple Store, etc)

[@PeterMan55]

nothing, only apple can

[@marik_hadare]

Hi, so I don’t need programming the battery anymore when I the tag? It’s a lot easier now then!

[@bartekm9parts478]

you need to leave it inside otherwise it will show old condition in 3U Tools and will work the same.. Also try to fully bend to the back the battery fpc.

[@Faysalariss]

What do you mean by work the same? And as long as its 100% the customer would be fine with it, only other techs would check using 3U

[@PeterGiesbrecht96]

After a couple weeks 3u tools also shows 100%

[@TheSlavenger]

Worked amazing for my first 11 battery fix, second one not working at all unfortunately, any ideas?

[@peterluong5812]

Were you able to figure it out? Mine is not showing the non genuine battery message after prompting to boot from lightning cable.

[@TheSlavenger]

@@peterluong5812 yes actually, im pretty sure I had a bad tag on flex, once you prompt boot by cable you need to power off, then power back on manually (with power button)

[@peterluong5812]

@@TheSlavenger thanks for the reply. Unfortunately I don’t have another tag on flex to try. Guess I’ll just have to live with it for now

[@axxomovies-he6zi]

I assume soldering is out the question ❓

[@BirdManPhil]

Is this working in 16.5 ?

[@bigtreeproductions]

How are you able to do this without a second battery? I thought you need the second battery to bring up the "non genuine" message and then use the battery with original BMS and tag on flex. When I try the method in this video I don't get the battery message and the battery health still shows the old number. Please advise.

[@faridjxo4884]

Hi i have the same thing, did you solve this problem??

[@bigtreeproductions]

@@faridjxo4884 I think you have to have a second battery to get the “non genuine” message. Then switch to the new battery with the original BMS and tag on flex.

[@kamusbanak4168]

Thanks

[@Pinkman875]

Still working today this method?

[@rspaulding]

Can you just solder it instead of the tack weld? If no, why not?

[@mattheww797]

no, don't solder batteries.

[@juergenwest]

Is battery adhesive included in the kit like all the other ampsentrix and service pack batteries or sold separately for this model? Didn’t see it in the video.

[@MrBlowmyselfup]

the "core" batteries don't come with adhesive.

[@dandaniel30286]

Great tutorial, but I would make removing the tag on flex mandatory and not optional. The tag on flex can potentially move and rub the battery enough to short out causing it to need to be replaced.

[@atakanaynaci]

What is the purpose for that extra flex cable which you all removed later?

[@christophermanners3838]

To get the battery health on phone

[@simornyun7646]

Where find flex?

[@Jbrimbelibap]

These can now be bought for like 4€ on aliexpress depending on phone model

[@mmwienk2]

What do you mean by “prompt to boot with lightning cable”? Do you mean just plug in cable to boot it or do you have to something first? Prompt word is throwing me off. Helps pls

[@MobileSentrix]

Yes Prompt to boot just means turn it on with the cable and not the power button.

[@adriananzano2292]

can you use normal solder instead of spot welding?

[@noynayru]

no

[@rspaulding]

@@noynayru why not?

[@edobosho]

@@rspaulding regular tin soldier doesn’t stick to nickel. Need spot weld or nickel weld

[@faridjxo4884]

can anyone tell me why it doesn't works for me? I do the exact same this, boot with cable and it still the same % than before

[@slyclone5297]

Are you on ios 17.4 and later? if yes, you have to flash the phone to get the 100% reading

[@donevangravelle]

@@slyclone5297 i have a couple iphone 13 that still show same percentage after doing restore. any suggestions?

[@slyclone5297]

@@donevangravelle did you use 3utools

[@revampmobilesolutions8851]

Is the process same for higher capacity batteries? I wonder what that would show for battery capacity and health if it’s higher than original spec? Love the vids, keep ‘‘em coming ❤

[@MobileSentrix]

It will show 100% on them as well as The iPhone software wont go past that, but the phone will function with extended battery charge

[@henryce7]

@@MobileSentrix I asked a technician and he told me that there is a risk of it burning if I put more amps on the iPhone, could this be true? I have an iPhone 7

[@Fizzi-gf2og]

@@henryce7 hi there , im a iphone 7 user too . to answer your question it is about the quality of the battery . some company sell conterfeit product out there so you need to be careful. I use high capacity battery and it works just fine although it produce more heat but it is logic but you need to make sure you buy the trusted company for the high capacity battery . some of them are knock off product but claim to be high capacity. mine luckily is good at 2400 mah for iphone 7 . some knock off battery claims 4000 mah for iphone 7 which is totally bs ofc. so i hope i answer your question.

[@xCrusaderOfLightx]

I did this repair just now on a iPhone 13 mini using the tag on flex. Booted the phone with the lightning cable like you showed. It still shows the old battery health from the customers previous battery.

[@MobileSentrix]

Its possible that the tag-on flex was in the wrong orientation, or had some unwanted tension on it. It needs as much room as it can have inside the phone like any tag-on flex. Try it again and see what happens

[@anthonys9103]

WHY??? I have been replacing batteries for 14 years and it is rare when a customer is really upset that it is not an original battery. 90% of the time, they don't really care. If they do, as an IRP, I just order an original and program it with Apple software. Even in Apple internal docs, if they open a phone and see a non-OEM battery, they require you discharge the phone and then proceed with any repair other the battery.

[@PhoneFlipProfits]

I think this is kind of important especially when reselling and multiple parts have been replaced on the device. Its a little bit of an extra step but Ive noticed a lot of customer asking about the battery health lately. For repair service if someone is paying to have their battery replaced this doesn’t matter that much unless the customer is willing to pay more

[@carlosovalle8899]

Here in USA people really don't care about the warning messages of battery or screen. In Colombia people are obsessed with those messages , battery percentage or true tone. Me personally I don't care

[@MunchkinCatBami]

It won't work with the new ios [16.5]

[@BirdManPhil]

Are you sure. Injured gadgets tag on flex works so why wouldn't these

[@MunchkinCatBami]

@@BirdManPhil Yes, Even an injured gadget won't work as well. It works when tagged on Flex. It has an issue with iPhone 13 series.

[@BirdManPhil]

@@MunchkinCatBami so they work if you leave the tag on flex on?

[@BirdManPhil]

@quickfixrepair5569 can you be more specific please. Will it work if you leave the tag on flex installed?

[@MunchkinCatBami]

Yes, ​It works when you leave the tag on Flex but sometime it won't work properly, I have done 13 pro max in the last few weeks, and the customer returns it back.

[@bartekm9parts478]

Also does this tag on flex need programming? Because you didnt show it :(

[@saadmasood4797]

Bro watch the vid. He literally says no programmer.

[@niazdevaj]

Wow the Tag-on Flex is stronger than my first 2 marriages. #3rdTimesACharm

[@twelvepins]

I think the best solution is to stop buying iPhones, I’m a iPhone fan, but I’m sick off Apple locking down everything, wait and see when the new iphone 15 is out, you only can charge it with only approved apple USB C cable, time for people like me to cop on, and stop giving apple my money

[@Dan-v3i]

I DEFINITELY agree that Apple is going WAY to far in their BS by serializing EVERYTHING. I joked around with my wife saying that “Watch. Next thing you know they will find a way to serialize the back glass.” Sure enough, with the new 16’s that came out, they did. WTF!!!!!!

[@lallyji8051]

Love your vids but please equalize audio levels of voice and music. Music gets too loud compared with your voice. I am constantly having to turn audio up and down because of this and its very annoying. Thanks.

[@OdusEstore]

Tf are u talking about ?

[@Lux197live]

A useful tip: leave the tag plugged

[@lightwxrk]

why?

[@kcastillo1234]

@@lightwxrkbecause why take the extra time to remove it

[@Emrulator]

@@kcastillo1234 because leaving it in is useless and costs money. it also has additional potential for errors and you can continue to use the day on in the workshop. So all of that is worth a few seconds to me

[@taylorman57]

I definitely wouldn’t leave a mobile sentrix circuit board in my phone if it isn’t needed. Good chance that flex will fail and then you’ll have to open the phone up and take it out anyways.

[@betoandrade16]

I love you guys