What does the red light above the speaker mean?

Hi,
I have an Iphone 4 running IOS5. Just this morning, I woke up and a little red light was glowing above the ear speaker. The phone will not turn on, and is otherwise dead. I tried the hard restart and that doesn't work. Plugging into external power, or plugging into the computer does nothing.
Please help!

try it this time.
https://discussions.apple.com/message/8117095#8117095

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hey, my iphone suddenly died yesterday. i was texting, browsing normally and couple of minutes later it was dead (battery was almost full). i tried hard reseting it, connecting it to my mba and nothing, itunes doesnt even recognize it. couple of hours later i saw this red light above the speaker and after some googleing i found this discussion
https://discussions.apple.com/message/16706124#16706124
where it says that the red light means my iphone was damaged by water. the only thing i dont get here is HOW since i havent dropped it, nor used it outside in the rain haha. i am kind of confused because i dont know if its dead or not. right now it's resting in a zip bag full of rice but i dont get it. could someone help me? thanx
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Hey there lildl110,
Let's get that iPhone 4 to cool down. It sounds like the phone overheated and needed a bit of a rest. Is it still too hot to touch? If you've given it some time to cool down please try the restart method,http://vz.to/1ciOvXw.
Keep us updated with results.
NicholasB_VZW
Follow us on Twitter @VZWSupport

What does a red light near front camera signify?

My iPhone shows a tiny red light near its front camera, what does it mean when its on?

The red light is the digital in light, that is how it reads the headphone jack. The reason the sound doesn't work is because a switch to turn the speakers back on is stuck (note that if you boot the computer, you will hear the startup tone).
There are several ways to fix this...
Some have found that putting the headphone plug in and out several times (maybe twisting it a little) will work.
Others have used a toothpick to adjust the switch (I don't advise this because the toothpick may break).
Instead of a toothpick, many have used a paperclip (probably best to use an insulated one). I couldn't get this to work, but I would suggest straightening, folding in half, then twisting the paperclip and moving it around in the port.
You can also use a sewing pen/needle.
I have seen all of these methods online, but they didn't work for me. I took a que from this instrucable and cleaned my jack with a dry q-tip. I then cut off most of the end and turned it around inside the port. This worked, but after I put the headphones back in the same problem came up, I just did the same procedure again and it worked again (even after I plugged the headphones back in and took them out).
PS: I woud suggest putting some q-tips and possibly some scissors in your MacBook bag in case the problem arises on the move.

Why does the Red Light at the top keep flashing?

I have no missed calls, emails, messages, instant messages, vmails, but the red light is still flashing... what else could it mean?

For me it was weather bug causing it.

Is it dangerous to look at the red light in the headphone jack?

I recently purchased an early 2009 model white MacBook. Today I was installing Windows on it and I noticed a red light coming out of the headphone jack. I thought there must be an LED in there to help you locate it in the dark. I was curious about it so I crouched down next to the computer and looked inside the jack to see what the deal was.
At the time I didn't know that there is such a thing as an optical audio jack. Obviously I now know that's what the red light was all about. Now I'm wondering if looking at that light could have injured my eyes. Is it a laser, an LED, or something else? Does anyone know how dangerous it is to look at that light? I looked directly at it from close range for perhaps 3-10 seconds, with eyeglasses on. I don't remember it seeming uncomfortable to look at.

Thank you both for your replies.
GfulDedFan wrote:
To the best of my knowledge, that light shouldn't be on when the port is empty.
Yes, my understanding is that that light should only ever come on when there is a Toslink mini-plug adapter inserted into it (or at least a regular 3.5mm analog plug). However, like you said, I've seen a number of posts on the internet about that switch that turns on the digital output (red light) getting stuck in the on position (even without having plugged in a Toslink adapter). My understanding is that in my case the light came on because I was in the process of installing Windows and the driver for the audio hardware hadn't been installed yet.
GfulDedFan wrote:
As far as harmful rays, I doubt that it would be harmful because I've read about this audio problem before but never with a cornea damage attached to it.
I did look inside the jack directly at the light. I think it might be the retina that would be at risk if anything, but in any case, I sure hope nothing was damaged.
JoeyR wrote:
The power for the lasers used for digital audio is very low.
Is it a laser?
JoeyR wrote:
Especially if you didn't find it uncomfortably bright.
I don't recall having a reaction that it was uncomfortably bright and then having to force myself to look at it. If it had seemed uncomfortable I don't think I would have continued to look at it.
I don't think I actually became concerned about it until I found out that the light is for digital audio output and wondered if it is a laser. Not that I recommend looking right at a bright LED either. But I wasn't expecting a bright LED either (let alone a laser) -- like I said, my first thought was that there must be an LED inside to make the jack easy to locate in the dark (I was in a darkened room at the time.
JoeyR wrote:
If you've ever, even very briefly, had a low power laser pointer hit your eye, you'd realize it is super bright.
Fortunately I haven't, but someone who did have a laser pointer aimed at their eye told me they noticed it when they felt a burning sensation on their eye.
JoeyR wrote:
Any damage would almost always be nearly immediate. If you haven't had a problem, you're fine.
Do you think any damage would be readily apparent right away, in the form of pronounced discomfort or noticeable vision problem?

HT2995 I have no audio output implementing the toslink digital , can see the red light at the input end to audio recv'r any thoughts

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HT5783 My MacBook Pro (Mid-2009) digital output has stopped working. It turns on the red light at the other side of the plug, but fails to connect with my receiver. Output from Airport works fine.

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Hey marcalc,
Thanks for the question. I understand that you are experiencing issues with the digital output of your MacBook Pro. The following resource may provide a solution:
OS X Mavericks: If you can’t hear sound from your speakers
http://support.apple.com/kb/PH13841
If you’re trying to listen through a digital receiver
If you’re using your computer’s digital output port (not available on all computers), choose Apple menu > System Preferences, click Sound, then click Output. Make sure Digital Output is selected.
Make sure your computer is connected to a digital-ready receiver using an optical digital cable, and that your receiver is set up for digital input (see the information that came with your receiver).
Try adjusting the volume on your receiver. You can’t use the computer’s volume controls to adjust the volume while using digital output.
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Hi
I've got a mac pro late 2006, and i am having problem with it for quite a while now. the problem i am facing is the start up process, and the red light on the logic board. Earlier I've got the two led on the diagnostic leds 5 and 6 turned on without the diagnostic button being pressed, and i think those are related to the processors overtemp. I've managed to solve that by, removing the processors and re applying the thermal compound on the heatsink. what i have left now with is the red light on the logic board at the time i plugged in the power. At the same time when this light come on, the power indicator at the front panel come on as well. i am not sure what is this light relates to. We've replace the power supply too, and gone through the SMC reset but seems no help.
Any idea on the problem? I am desperate about it, and i will be greatful if anyone can help..
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Did you try the suggestions in my other reply?
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We all would like to know more details - Kappy too!
Tell us a Story - with a beginning, a middle and end. We need to understand everything that you know and have experienced.
If this issue is new, tell us what immediately preceded its onset - add software, upgrade or update? New equipment?
Quoted from  Apple's "How to write a good question"
To help other members answer your question, give as many details as you can.
Include your product name and specs such as processor speed, memory, and storage capacity. Please do not include your Serial Number, IMEI, MEID, or other personal information.
Provide the version numbers of your operating system and relevant applications, for example "iOS 6.0.3" or "iPhoto 9.1.2".
Describe the problem, and include any details about what seems to cause it.
List any troubleshooting steps you've already tried, or temporary fixes you've discovered.
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What does the red light above the speaker mean?

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