Level 1

36 points

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

Top-ranking reply

mendonipadrehab

Level 2

302 points

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

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44 replies

wagsat12

Level 1

10 points

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.

May 30, 2017 6:40 AM in response to andrewcsss

I've just got this problem too, but heating it up hasn't worked for me... I cleaned the charging port yesterday due to dust, so that doesn't solve my problem eithere. Does anyone else have a suggestion?

Dec 20, 2014 9:49 AM in response to mendonipadrehab

Your iPhone could be defective. Check to see if you're eligible for a free battery replacement on Apple's behalf: https://www.apple.com/support/iphone5-battery/

Sep 18, 2015 1:15 PM in response to Phalgun27

I am having the exact same issue with my phone.

Sep 18, 2015 7:56 PM in response to EmmaWoodall85

I had this same issue today while I was at work. I

was able to plug it into itunes and it took care of the problem.

Sep 25, 2015 7:11 AM in response to LadyRose2001

The problem came back twice after this

Linda S

Level 1

12 points

Jan 9, 2016 2:20 PM in response to wrthrash

Thank you. Didn't believe it would work but out of desperation before wasting time heading to the Genius Bar since I am on call tried this and worked. Thank you very much.

Mar 29, 2016 7:34 AM in response to lakerfan2000

OMG!!! IT WORKED WITH MI iPAD!!!! 🙂

I'm at work so i don't have a hair dryer at hand but I used the hand dryer at the ladies room and IT WORKED!!!!!

Thank you so much for the information 😁

Jun 21, 2016 2:30 PM in response to andrewcsss

this has happened ti me and im stuck on the red battery sign.. i have tried all my chargers... any help ??

Aug 23, 2016 10:30 AM in response to wrthrash

Thanks for sharing this trick. I followed it and was able to access the phone again.

Jan 30, 2017 7:40 PM in response to andrewcsss

I have same problem the battery usage can be wrong on iOS 10. The only way get iPhone 5 comes on heat the phone up.

Jan 31, 2017 7:21 PM in response to katyclaire

I try resets the iPhone doesn't help but I will shut off again in stuck red

battery black screen

Feb 1, 2017 6:35 AM in response to Theatremiss

I just sat on mine at work to heat it up. Worked perfectly. Who knew?!

Jun 5, 2017 9:13 PM in response to Phalgun27

Mine does the same thing, minus the lasting for a while on 1%. Have you found a solution?

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iphone 5 stuck on red battery screen