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Charger makes high pitch noise

Every since I got this phone, a week after the release date, the wall charger seems to make a high pitch noise when the streak is plugged in. It can only be heard while my ears are directly to the side of the charger, not in front. My bed is about a foot away so I hear this noise quite often. If I unplug the streak the noise instantly stops.
I'm just curious if 1. It's safe and 2. if anyone else is having this same problem.

That is usually caused by a vibration in the transformer coil in the brick.
It is harmless, but annoying.

Or the flux capacitor

hitting it with a slipper may help, if it hisses poke it with a stick.

any one noticing a weird humming sound when charging ?

just plugged phone in and theres a weird humming sound coming from it also doesnt seem to be charging it was fine before 2.3.6 update any one had any issues with the update ?

its not the phone its the charger it self.. im fed up with all these newer devices doing it, my virgin modem + note + razor chargers all hum and its really annoying

I hear a high sound from the charger but only when the phone is not connected.
CU

I found mine did the same straight out of the box so I don't use the charger, I use my N900's charger instead which doesn't make any such noise.
John

Noisy Mains Charger

I noticed this morning a strange hissing noise which at first I thought was coming from the phone. This was when I was using the phone whilst it was plugged into the mains charger.
I removed the cable and the noise stopped. I plugged the phone into a USB port on my PC and there was no noise this time. So I checked the mains charger that came with the phone and sure enough the noise was coming from there!
It almost sounded like there was a fan inside, a very similar noise.
Has anyone else experienced this or can you recreate this?

It also happens to my charger, you can feel comfortable there are no problems
Sent from my Galaxy Nexus using xda premium

apprentice said:
I noticed this morning a strange hissing noise which at first I thought was coming from the phone. This was when I was using the phone whilst it was plugged into the mains charger.
I removed the cable and the noise stopped. I plugged the phone into a USB port on my PC and there was no noise this time. So I checked the mains charger that came with the phone and sure enough the noise was coming from there!
It almost sounded like there was a fan inside, a very similar noise.
Has anyone else experienced this or can you recreate this?
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I do not have this charger but from your description it sounds like normal switcher noise.
The charger likely uses a switcher for dc-dc conversion. When not well designed they can have an audible noise. Usually it is not a fault and no reason to worry.

kuikkaj said:
I do not have this charger but from your description it sounds like normal switcher noise.
The charger likely uses a switcher for dc-dc conversion. When not well designed they can have an audible noise. Usually it is not a fault and no reason to worry.
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Thanks for the info guys

i hoped i finally got rid of that noise with a new phone, but my note 2 charger makes noise too.
just like my LG O2X charger and Galaxy Tab 2 7" charger.
yet all my other chargers are capable of being perfectly silent.
it's loud enough to give me trouble sleeping, and i'm used to sleeping next to a noisy PC.

I don't have a Galaxy Note 2 yet, but my original Galaxy Note's charger makes noise, as well. I believe because it has a high mAH recharging, because I use as an extra charger an old blackberry charger (with a long long cable xD) with only 500 mAH recharging power doesn't make any noise. I don't know if it has anything to do with how much voltage is flying through the charger has anything to do with it, but:
*Samsung chargers make noise.
*Other chargers I have don't.

All the chargers since the SII's have emitted some noise when there is no device plugged in. I don't really mind honestly.
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Using nokia phones since 2002 i have to say most of them make that sound, dont worry

I got my SGNII at the weekend, and I have a very noisy charger, to the point where, as it is close to my bed, it wakes me up when its finished charging. However its only noisy once the phone is fully charged. Unplugging the phone once charged means the noise stops, but it also means my phone has been running on battery for 6 hours before I get up.
I think I will switch to a different USB charger that doesn't sound like a mouse being tortured

No Problem
Never faced this issue ever. Maybe faulty chargers i guess

Nexus 7 in car install Engine noise help??

alot of engine noise and hissing noise even when car is off
its a nexus 7 timurs rom, sound going from nexus via 3.5 tapped into factory cd changer any suggestions?

Ground loop isolator.......

I just solved this problem in my own installation. After some searching around, I ended up deciding on this:
http://www.amazon.com/gp/product/B001EAQTRI/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1
It's a good price, free shipping with Amazon Prime and completely eliminates the alternator whine you're experiencing.

Thanks i ordered it from my experience in car audio ground loop isolator a while removingr whine also make the sound dull
Maybe i am wrong but it doesnt seem like a proper solution
Maybe grounding usb power? Or the 3.5 mm jack on the nexus to the cars body?

Who said you had to use one in the audio line?
If you know what to look for you can isolate the noise in the power supply line itself.Something like this. Now the real question is why is it hissing even with the vehicle off. In reality it shouldn't do it at all but nothing is ever perfect and trying to track down a ground issue can be more trouble then it's worth. Do you have battery drain issues? or low charge or possibly high charge while driving? Wondering if you have a possible problem with the voltage regulator in the car itself. When they go back they can actually cause a draw with the vehicle off. Doubt that is the issue but figured I would ask.
And just to be clear as to what you are doing. You are going from the Nexus (headphone jack) to the front of the stock car stereo(AUX input 3.5 jack). Do you have the tablet plugged in to a cigarette adapter or charging by any means via the car? If so, have you tried having it not plugged into the charger to see if that changes anything? Most cigarette or power adapters are not isolated so if you use them you have the possibility of it happening.

Headphone USB C connector goes hot

Hy,
I have a issue with the headphone that arrived with the phone. After few minutes of listening to music, the connector goes hot (not warm, hot). Also when track is changing (low sound) you can hear all sorts of static background noise. Also if i try to move a bit the connector (not pulling it out, just move it a little) the phone looses connection to headphones.
Is this normal, a generic problem, or is just mine faulty?

Marmalux said:
Hy,
I have a issue with the headphone that arrived with the phone. After few minutes of listening to music, the connector goes hot (not warm, hot). Also when track is changing (low sound) you can hear all sorts of static background noise. Also if i try to move a bit the connector (not pulling it out, just move it a little) the phone looses connection to headphones.
Is this normal, a generic problem, or is just mine faulty?
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Click to collapse
Same here, I think its a generic problem.

I think it is normal. Jack hedphones are a passive device, which means the audio signal you are listening to , it is also the power supply. USB C headphones are different. USB (every kind) has 2 Pins dedicated to the power supply in order to make the DAC supplied and working