iPhone XS doesn't charge after update to iOS 14.

Continuation to

https://discussions.apple.com/thread/251804766?answerId=253535644022#253535644022

Due to 1% of the battery level I was not able to perform Factory-reset. So I connected the battery port direct to the power supply (3.7V) with help of a Power Cable Batterie Adapter, special for such purposes. And I did the full Factory-reset. After that I restored my backup and connected the original battery again.

First it was like 60-80%. But after some time my iPhone went off sporadically (restart) and started with 0% of battery level. In this state, I was not able to charge it again. So, then I pulled out the sim card and the problem is gone for the moment. I have againt normal voltage level and the phone can be charged. I do long tests now without a sim card.

Summary of my state:

When iPhone won't charge and show 0%, it doesn't mean that the battery is defect.

Too high power consumption still can be the initiation of this problem.

I test my iPhone XS without the SIM card.

(2.) Continuation to

https://discussions.apple.com/thread/251804766?answerId=253538851022#253538851022

Last time I wrote I will test my iPhone without the sim card. I tested that for 48 hours. I played with my iPhone XS games, looked Videos, surfed in Internet and read eMails and WhatsApp. All the time Bluetooth and WiFi were switched on. Also I used my AirPods Pro and other headphones. I didn't met any issues with my battery or charging.

So I inserted the SIM card again. And I will test it for a few days and report here my observations.

(2.) Summary of my state:

My problem:

Imediately after update my iPhone XS to the iOS 14 got this troubles with battery:

• restart
• wrong battery charge level
• not able to charge with any charger anymore

My tests and tries:

• replaced the battery with other original apple battery -> Unsuccessful
• performed factory reset, backuped, erased and restored all data -> Unsuccessful
• removed the sim card and test it without mobile connection (Wifi for Internet) -> No issues anymore

Possible reasons for the success this time:

Time-dependent:

The to high current consumption of the iPhone due to the optimization work for iOS 14 is gone. The well-known optimization processes of iOS 14 which are usually carried out to improve the work of the operating system after update, are gone. Maybe because of the lot of time is gone after the update and there are no optimization work needed anymore.

Load-dependent:

The to high current consumption of the iPhone because of the optimization or iOS 14 bugs is still there, but it is less due to the deactivated mobile connection module (sim card). The battery can manage it.

Mobile module dependent:

The cellular network module is deactivated without a SIM card and therefore no longer causes problems like sw bugs or to highh current consumption.

My next steps:

Insert the sim-card back again and test my iPhone again for about 48 hours.

Ok. I don't really understand what you mean with "...giving your phone too much electricity...". But I think you mean the same like me. The iPhone consumes to much power from the battery. So, the battery goes very fast empty and the charger is not able to charge it due to a charging bug or too much power consumption of the iPhone. I hope we are on the same here.

Look. I tried to load my empty battery with original charger and with a very strong charger from Anker with Power Delivery (Type-C) 45 Watts. And it didn't help me. Also the expert from Genius Bar was not able to charge it with the charger adapter from MAC. So, your Tipp won't help me. But thank you!

In my case I needed the new battery because, what it looks like, my battery was very weak (under 90%). And that's why my battery immediately went from normal level to empty level with a reboot. In fact, I didn't see fast discharging. I saw only restart and 0% battery symbol. And I was not able to charge it after that.

No matter if to fast discharging of the battery, sudden restart of iPhone, displaying a wrong battery level, not charging over 10 or 20% or not charging at all. All these problems caused still due to too high power consumption of the iPhone after updating the device to iOS 14.

Apple will never admit it!

Otherwise they will have to pay for the battery change for all customers if the problem occurs like it did with my iPhone.

Hi,

to your question. Yes, my battery display works correctly. So I see always the right level of my battery.

One important thing in addition to my investigations:

I think the device needs also time (or better any cycles) to learn about battery well. At the begining, there is some standard values about the min and max battery level. After some charges and discharges cycles your device will learn what is the minimum and what is the maximum level.

For example:

A voltage level of 4,253 volt is a maximum level after the charging and equals to - 100% of battery display (SW).

Or the voltage level of 3,032 volt is the minimum of the battery and equals to 0% of the battery display in iPhone OS.

This voltage values are measured by battery electronics - BMS and delivered by battery communication interface per I2C - serial bus. These values are specifically for each particullar battery.

So, what you will need to get your battery display right, maybe also this normal charging and discharging cycles.

After your iPhone will perform all this optimization work (3-4 days) due to amount of data and apps the battery would probably not able to show the voltage level very precisely. But after one or two charging cycles it will be fine.

While testing my second battery, I also had this full battery display, even though it was actually about 70%. I don't know why. I tought, maybe the values of battery levels were crashed by all these investigations with lab power supply instead of real battery. So I decided to perform the full factory reset.

Just try it, I think you are on the right way. At least after optimization time (3-4 days) and charging-discharging cycles your problem should be gone.

Please report your results here. ;-)

Thank you!

Best regards

Anton

Hi Andy,

there is nothing to do with the fact if there is an original battery or not. The guy from Apple has told you that, because it is simpler to say that and to move the problem to not original battery. They are mostly not engineers there and not experts at all.

I have new battery now. But I replaced this battery by my self. And I also have this notification about non original battery. But I don’t have this problem anymore.

The Apple supervisor (manager) from Frankfurt (Germany), told me that my problem is 100% the hardware(mainboard). I asked her (women) to replace at least the battery, she told me, my iPhone was opened before, so they can’t do that anymore for free. (I understand that, but why she didn’t admit to the software issue?)

I told her and an other guy, that there is a lot of cases with not charging iPhones after update to iOS 14 in Apple community. They answered me, they sometimes read these posts, but they don’t know if these posts are real or not. 🤣

To your problem:

Can you write exact what you did to try solving your problem, your steps?

Original battery (remove the notification)

You can buy a new original battery (with wrong serial number) and program it with special programer from china (JC V1S). It is easy, like two button clicks: „Read and Write“. You will need for that your old battery and your new original battery.

Maybe your old battery is damaged in some way. Maybe, because of high current consumption, there are some irreversible chemical processes happened. We don’t know that.

My current battery:

Original Apple but with wrong serial number.

Sorry for my english. I learn it now. 🤗

Hmmm, that is not good. ((

I tought it will be enough to let it for 4 days without sim card on the charger. But as it looks like, it is not enough.

You can try something else;

I don't know if you have access to any labor power supply and special battery adapter. Maybe your engineer can do that for you. The point is to let your iPhone enabled with sim card and wifi, with all data and apps restored, connected direcet to the power supply instead of the battery.

Power supply can deliver much more power, so your iPhone will able to perform all optimization work needed without resets!

Warning:

This is not trivial. You can completely destroy your device. Please be very careful!

I'm not responsible for any damages if something goes wrong!

Don't do It If you are not sure!

You will need:

• DC Power Supply Test Cable (like W103+) for your iPhone model
• Power Supply (adjustable: from 0 to 5V and maximum current at least 2-3 A)
• Your iPhone

Your steps:

• Switch your iPhone off
• Open your iPhone (caryfully)
• Disconnect the battery (caryfully)
• Switch the Power Supply on and adjust the voltage level between 3,7 and 4.2 Volt. (For example 4.0 Volts.)
• Adjust the maximum current between 2-3 Ampere max.
• Connect caryfully the "DC Power Supply Test Cable" to the battery terminal of your iPhone (instead of your battery)
• Connect the other two cables (red - Plus and blue - Minus) to terminals of Power Supply
• Switch the iPhone on as usual (sim, mobile, wifi, bt) and let it for 3 days on this cable.
• ...wait for 3 or 4 days
• After 3-4 days, switch your iPhone off, disconnect the "DC Power Supply Test Cable" and connect your battery again
• Assemble your iPhone (caryfully)
• Switch the iPhone on and test it as usual
• Report your results here.

Please be careful! I'm an engineer in electronics, so for me, it is not difficult. But I don't know if you easily can do that or not.

Better let a technician do it.

Good luck!