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iPhone 4s Battery problem maybe found!!

hello to all!!

I think i Found the problem of the iPhone 4s battery!

i had phantom usage for quite a bit and there was always a blue light above the screen ( you can only see it trough isight or others cameras! )


now i didnt have phantom use and the blue light was gone


i turend on siri Speaking because i was curius an then i could see the light again !

now i turend off siri speaking and the light is still on !?


i think this is the problem !User uploaded file

iMac, Mac OS X (10.7), Boots up very slow

Posted on Nov 19, 2011 11:25 AM

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Question marked as Best reply

Posted on Nov 19, 2011 11:33 AM

sorry this is really not helpful. How about a blow up of an arrow or somthing to show people where you are seeing this light?


Second if you cannot see it with the naked eye but do see it through a camera it is likely infrared it is probaly the sensor that tells your phone when its against your face to turn on and off the screen when you are talking.


Me, I turend off all the things suggested and I am at 40% power from a charge more than 31 hours since my last charge which I am happy with as it is on par with my old phone.


You should also let folks know that English is not your first language. It's cool we can understand just the spelling is a bit rough.

101 replies

Nov 20, 2011 8:25 AM in response to megakai132

I'm able to reproduce this, on the face of it, it certainly looks like its not working as designed (unless Apple engineers know something we do not)


drStrangeP0rk - hold down a button on the remote and see how long it lasts for. 0.9ma draw is normal


Interesting find, congrats to the OP as its certainly plausible (and more productive than people telling you to turn everything off or reset everything)

Nov 20, 2011 10:03 AM in response to Steve2828

Steve2828 wrote:


This is simply the "Raise to Speak" Siri sensor. It's not a "problem" or "malfunction" or "defect" or anything like that.


When you have Siri "Raise to Speak" on, that sensor is active whenever your phone is unlocked. That sensor detects when your phone is next to your face and makes siri listen automatically.


Also, when you are on a call, there is another similar sensor that is used to shut off the screen when you put the phone to your ear.

This is not Raise to Speak. If you read the description, it's on ALL THE TIME, with Raise to Speak OFF and Siri OFF and not in a call. it's a battery drain and a bug.

Nov 20, 2011 10:05 AM in response to megakai132

megakai132 wrote:


hello to all!!

I think i Found the problem of the iPhone 4s battery!

i had phantom usage for quite a bit and there was always a blue light above the screen ( you can only see it trough isight or others cameras! )


now i didnt have phantom use and the blue light was gone


i turend on siri Speaking because i was curius an then i could see the light again !

now i turend off siri speaking and the light is still on !?


i think this is the problem !User uploaded file


This is a bug 100%. See my video. It fires when Siri is OFF and not in a call. There is no need for this sensor and monitoring of it to happen. it's a battery drain for sure.


http://www.youtube.com/watch?v=EqcwVGW_-n0

Nov 21, 2011 8:11 PM in response to alwaystubed

I don't think this is the whole battery issue but it certainly helps when the sensor/light is off.


I need to do further testing from 100% battery but so far it's absolutely helped. The downside is I can't use Siri with this bug and get decent battery time at the same time. For the record here's a CU of the sensor/light on my phone while it was stuck on taken with the front-facing camera on an iPad2.


I had to turn off Siri and reboot the phone to get it to turn off and only come on for phone calls as it should.


User uploaded file

Since turning off Siri and rebooting my iPhone 4S I'm currently seeing these stats:


Battery is at 4%

Call Time = (since hitting 100% and unplugging when resetting this stat to zero) 1 hour, 4 minutes

Usage = 16 hours, 1 minute (I haven't used it for 16 hours though, there's no possible way)

Standby = 1 Day, 7 hours


Hope this is helpful to someone!

Nov 22, 2011 12:28 AM in response to W. Raider

I had this issue as well, turning off raise to talk on siri and rebooting phone turned the light off, battery life has got better by about two hours, but it still says 11 hours useage and 18 hours standbye, I have not been using my phone that much, I am starting to get concerened what this drain is doing to the battery, and wondering why my iPhone was fine when I first got it, then this happened one day. I am not sure but it seems like the software gets corrupted sometimes if you do a restore, I have had odd glitches with time zone for Calendar showing when it was turned off even setting up as a new handset did not help battery life, having had the phone since launch I am now fed up of waiting for a fix, wary of getting a refurbished handset when mine was brand new, Apple did contact me to ask about the issues, and ask to put something on the phone for 24 hours to monitor it, but at this stage I have lost faith. Saying that even the Google Galaxy Nexus has a bug with volume going up and down on its own, I am just fed up of being a beta tester for these huge companies, I really bought into Apple, I love my iMac, but this phone issue has me beat and very disheatened, the phone is a life line as I am disabled and is used for medical reminders to help jog my memory, my old iPhone 4 was a brilliant handset. The 4S is a mess tbh.

Dec 22, 2011 12:21 AM in response to AlexLedak

Reset it without getting backup from itunes works like a charm

What I did: Before you do this remember PHOTOS AND CONTACTS MAY get deleted so make a BACKUP somewhere ;]

Settings -> General->Reset-> Erase all Content and Settings.


Tested overnight and battery drained 2% when I woke up. Its some software issue I guess. Also I'm not adding any email accounts or Icloud functions just yet as I believe the problem is connected somehow to them. Going to use Phone functions,some apps,videos, music all except for mail and icloud and sofar my testing seems to be good. Goodluck to anyone else

Jan 4, 2012 9:53 AM in response to W. Raider

Just a quick update. I've been toying around with the IR sensor and found that if you:


1. turn off "Raise to Speak"

2. turn off Siri

3. hard reboot the iPhone 4S (keep holding both top and Home buttons until the phone shuts off, ignore the slide to shut down slider)

4. turn it back on

5. then turn Siri back on


the IR sensor will only come on when Siri is listening as it should.

(this still doesn't make sense since if Raise to Speak is off, it shouldn't need to know if you're holding the phone to your head, I'm thinking because it's kinda awkward to hold the Home button down while it's held to your face, but I dunno)


So I can use Siri again and only a tiny drain on the battery compared to before where the IR sensor was on 100% of the time.

iPhone 4s Battery problem maybe found!!

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