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iphone 5 stuck on red battery screen

Hello, recently my iphone 5 has been having weird battery problems. Sometimes it will loose 25% in seconds but last one 1% for hours at time. I forgot to plug in my iphone last night and woke up to it dead. Its been plugged in for a few hours now and still shows the red battery screen. Some things ive already tried are testing the charger(it works on other devices), holding home and power for 30 seconds, and putting it in DFU mode. When i put it into DFU mode it just becomes a black unresponsive screen and i have to hold down the power and home button for 30 seconds just o see the red battery screen again. Any help would be greatly appreciated.

iPhone 5, iOS 7.1.2

Posted on Nov 22, 2014 11:59 AM

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Question marked as Top-ranking reply

Posted on Dec 16, 2014 7:46 PM

This is a hardware defect that is quite common in the iPhone 5 and is now appearing in the other devices that use the lightning charging system. The usb logic ic, called U2, in the iPhone 5 is easily damaged by unregulated voltage swings that pass through non-Apple chargers---especially cheap car chargers.


The symptoms of U2 failure are: rapid battery drain, auto power on at battery reconnect, inability to charge a stone dead battery, fake charging, no usb detection, hot spot at U2 chip. Any or all of these symptoms can occur with a U2 failure.


This chip is encapsulated in a not-meant-for-removal black underfill substance that complicates our ability to replace the chip. There are a few places in the UK and Europe that can change the U2 ic chip, but as of early December 2014, there are no US repair shops that offer the service.


jessa

44 replies

Mar 28, 2016 4:45 AM in response to wrthrash

This helped me alot, thanks!

I found it strange that my battery level stayed at 1% the whole morning, so I decided to restart the phone. After restarting the battery level stayed at red.

After applying your heating trick I was able to start up my phone, many thanks!

I Did updated my ios from 8 to the newest 9.2.1 , perhaps in my case this was the cause..

Apr 17, 2016 5:37 AM in response to wrthrash

Having tried a bunch of traditional stuff, all the way to attempting recovery mode, the hair drier worked, phone woke up with 35% charge ( it had been on chargers while attempting to wake it) and allowed a factory reset. Time will tell whether the battery needs replacing, it has been misbehaving for a while, suddenly "draining" etc, or whether the heat has reset the battery chemistry.

EIther way, the hairdryer works brilliantly and fast, for at least a functional period of time.

keep regular backups!


thanks

May 9, 2016 11:29 PM in response to andrewcsss

Wow, heating the back of my iphone 6s plus with hair dryer for one minute does the trick for me. The battery had died completely coz of my laziness and refused to come up even after 5 hours of charging. After heating with hair dryer, it didn't come up immediately. But I did put the phone back on charging immediately after heating and waited with crossed-fingers while searching for my old 5s and putting its drained battery on charger with both phones having same screen at that point in time. 🙂 However, got pleasant surprise when I heard the notification sound on my 6S plus. So, heating an iphone with dead battery does work. For those interested, 5s came up automatically without requiring any heating!

Jan 16, 2017 9:26 PM in response to wrthrash

Thank you! My IPhone 6 was on the charger all night. I didn't use it all day but grabbed it to go run errands and saw the red battery icon. I put it on the car charger...nothing. Came home and did the obvious trouble shooting to no avail. Plugged it into my laptop and iTunes didn't recognize it. I'd been on line all evening trying to find a fix. I'd already made an appointment for service (the nearest authorized spot is 1 hour away) for tomorrow but the only available time, other than days away, was going to mess up a prepaid gym session. I'd already flaked out on this session last week and didn't want to miss it again. I have weekend plans that will require trains and the subway and I rely on my phone for getting around, finding food, etc. I read your post, turned on my wall heater and held my phone up to the heater for a few minutes. It came back on. I'm going to read further to try to understand how this worked. Woohoo!

Jan 30, 2017 10:27 PM in response to katyclaire

To add...I continued to have problems with my phone. Same thing at least twice a day. Red battery icon. Phone won't hard reset. Putting on charger has no effect. However, remove phone from case and hold in front of wall heater and it comes on. The battery says 29% or something equally low. I put the phone on the charger and it immediately jumps to 100%. I take off the charger and it rapidly drops down to 65%. A few minutes later it says 80%. It's all over the place. I couldn't get an appointment at the Apple store and I couldn't mail in my phone because I needed it because I was going out of town for the weekend. I got an appointment with an Apple Tech at a nearby Best Buy. The Apple Tech ran a check on my battery and said it was fine. He seemed confused about what the problem was. How to you explain this problem without sounding crazy??? He said to go home, do a factory reset and do a restore from the cloud. I did these things. The phone was fine for a few days and now we're back to square one. The same problem over and over. I'm debating whether to make an appointment at the Apple Store or pay the deductible and get a new phone.

May 28, 2017 7:23 AM in response to wrthrash

Thank you so much for this solution to what was a very big problem with my partner's iPhone 5. The battery on the phone died during an IOS upgrade, and everything just went downhill from there. Firstly, the phone got stuck in an Apple Logo Black Screen loop. After some research I managed to get the phone in Recovery mode, but the Uodate option didn't fix the problem. I then put the phone in DFU mode, and was able to restore the phone to factory settings. But then the phone was stuck in "red battery" status, and was unable to complete the restore. Using a modified version of your solution (a cup of very hot water held against the back of the phone) I was able to reboot the phone, compete the factory reset, and then restore the phone from a recent backup. Thanks again.

Aug 4, 2017 3:46 PM in response to Merniel96

I have a similar battery problem on my wife's 2-month-old iPhone 6+. Here are the symptoms:

1. The phone would not charge beyond the displayed battery percentage, which was 7% in this case. The battery kept draining no matter how long we kept it plugged in.


2. The displayed charge value declined over the course of the day until it came to rest at 1%, after which it only went back to 4% when I connected it to my pc and iTunes started up. That's about it.


3. I did all kinds of reset as found here in the forum. None worked.


4. I backed up the phone using iTunes and did a restore using iTunes. Then, the pc kept making these connect/disconnect sounds and eventually iTunes told me that the device had malfunctioned and couldn't be recognized and needed to be reconnected.


5. At this point I noticed that the phone was caught in the shut down/power up loop. I disconnected from the pc. The loop went away and I was able to set up the phone. Still wouldn't charge past displayed figure- 3%.


6. I plugged in phone all night until morning. Nothing changed. So, I decided to let the phone battery die out so that I could try the hair dryer idea.


7. The hair dryer worked- TEMPORARILY! After blowing hot air on the back of the device for about 3 minutes or so I immediately plugged in the dead phone. The apple logo appeared immediately and the phone booted itself up and showed 100% charge. After about 20 minutes I disconnected the phone from the wall and it died within 10 minutes! I tried the drier a couple more times. Each time, after I plugged in, the dead phone showed the apple logo on and off (like a looped thing) until the phone booted up again, only to show the persistent 1%. It was at this point that it occurred to me that it was strange for a dead phone to start up when plugged in; it should show only the battery icon or something like that along with indication of charging in progress.


8. So, I went online again and found this web page: https://www.mendmyi.com/blog/2014/06/has-your-iphone-5-died-and-wont-charge-or-c ome-back-on-we-can-fix-that/


Their explanation of matters makes sense. They had me examining all the Apple adapters and USB leads at home- we have accumulated quite a good number over the years. I found one cable that didn't pass muster on closer inspection. And it had, by some strange accident, recently been used to charge that ailing iPhone. Wow!

And that got me thinking. Why haven't I found some sort of "official" explanation of the problem, along with its cause, from Apple? Why? Oh, why have the 'isheep' been left seemingly without a shepherd?

Oct 10, 2017 1:04 PM in response to andrewcsss

Hi All,


I used the blow dryer heat method on my battery (I took it out of the iphone 5c because I didn't want to damage the iphone) and it worked too! Further, the battery that I had plugged in all night, but still wouldn't reach the apple icon, just the battery indicator, showed a charge of 100% once the iphone 5c rebooted.


Since I had another older battery that was exhibiting the same stalled charging pattern (no apple logo, just the battery charge indicator even after several hours of charging) I was going to try the blow dryer method again, but first I plugged the charging cable into the iphone without the battery to see what would happen (you have to have already performed battery removal procedures that exist on youtube from various repair places). After a few minutes, the apple logo appeared, but it just kept cycling through from apple logo to black screen and back to apple logo. So (and probably stupidly...you should never make connections when the phone is connected to the charger) I reconnected the battery while it was still plugged in and cycling through this apple logo process and...it rebooted. Don't know if this is something that will help anyone who is at their final, exasperated point, but when my phone rebooted the battery was at 1% and subsequently charged all the way to 100%.

Nov 29, 2017 5:00 AM in response to andrewcsss

Following a response here that showed how he got his iPhone 5 to start up by pressing it against a cup of coffee, I can say that this works too if you're in a pinch - I simply touched the back of my iPhone 5C that I had recently purchased from eBay against a warm cup of tea for a few seconds, then reconnected it to my computer - it would seem that the cold conditions it was being transported in were making the phone act a bit odd, and it needed just a tiny bit of warmth to wake up properly.

Dec 5, 2017 1:31 AM in response to andrewcsss

My iPhone 5s has been having battery issues ever since I updated to iOS 10 (previously on iOS 7). However tonight was the first time it ever got completely stuck on the dead battery screen. I didn't believe the heating method would actually work, but after several attempts holding it over the candle I had burning, it actually turned back on. About a minute of careful heating is what did it for me.

iphone 5 stuck on red battery screen

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