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[Q] High pitch noise with desktop dock.

Hi everyone.
I have had the original HTC Desktop dock for over two months now. Though i have noticed it makes a high pitch noise when i take the phone out of the dock. Has anyone else noticed this. I may have to get a replacement.
Oh, you may need to be under 25 to hear it becuse it is a very high pitch noise.
Thanks

I've got that from my wall charger. I can hear it at 32 years of age, and I can't hear those stupid ringtones, so it's not too high pitched.

i get that sound from the nexus wall charger, not from the dock....very irritating since it's right next to my ear when sleeping...
but i think it's normal, many other devices make that sound, like my previous nokia wall charger, the other nexus wall charger, and the previous motorola milestone wall charger did

yeah, I get the squeal from the wall charger if it's not connected to the phone. once you plug the phone in, the sound goes away. seems like a cheapo transformer.

its made by every transformer in this universe, nothing like cheapo or expensive there. Some are universal laws

I can confirm its the charger. Though only one of my nexus one chagers does thisthis
Sent from my Nexus One using Tapatalk

TBolt discharges while using in car as navi/pandora

When using in car, playing music from Pandora, and using google navigation phone uses more power than what charger can provide. Ive got it on a fast charger, so its supplying more current than a standard one,....its not overheating because when it does the charge light blinks green then red. Screen is on all the time during navigation and set at 30%. Anyone have same experience? My Droid X would keep charging in same situation. This is going down in charge %. I was using das bamf rom, just switched to Perfect Storm 1.2, maybe will make a difference?
Also when plugged in to power its underclocked to 768mhz.

Would switching kernals make a difference?

What is the amp output of your car charger? I'm pretty sure you need at least 1amp to feed this device while using GPS and data. maybe 750ma will do it, but most recent phones, tablets, mifi devices, etc. require at least 1a.

Same thing is happening to me, I dont think the charger puts out enough juice. I've ordered a verizon 2amp dual USB adapter, hopefully it will put out enough to charge the device.

ilogik said:
Same thing is happening to me, I dont think the charger puts out enough juice. I've ordered a verizon 2amp dual USB adapter, hopefully it will put out enough to charge the device.
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This is the charger,..
http://www.bestbuy.com/site/Rocketf...&skuId=1114106&st=phone car charger&cp=1&lp=9
Not sure of its output.
Let me know how the 2 amp works for you.

I use the one sold at the Verizon Corp stores and use Pandora daily with no issues when charging.. Chrages up if it was under 100 and stays at 100 when it gets there..

wctaylor79 said:
I use the one sold at the Verizon Corp stores and use Pandora daily with no issues when charging.. Chrages up if it was under 100 and stays at 100 when it gets there..
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But I am using GPS with screen on the whole time, curious if you are too?

Turn your screen off. Navigation and Pandora will keep playing and your battery will slowly charge.
Sent from my ADR6400L using Tapatalk

I guess your right,...it must be more of a power hog than my X was using the same charger.

I've used Last.fm streaming with GPS navigation and screen on for multiple hours at a time without any battery drain. I don't know what car charger I'm using (an unofficial one that I bought for my Moto Droid), but I've been running the Das Bamf kernels for the most part. Even before I installed any of those kernels I never noticed any battery drain while plugged.

Same problem here.
I have a Belkin micro-charge 1A. Can't use navigation and Pandora without losing charge. I had the same problem with the iPhone before I bought the 1A charger, the 500mah wasn't powerful enough.
And turning off the screen when you're in navigation mode defies the purpose.
Do you turn off the screen of your Garmin or Tomtom while navigating? I didn't think so...
Let us know if a 2A charger does help.
Thanks for the feedback.

I called Rocketfish to try and find out just how much powa the charger I posted earlier put out. They didnt know, lol. They said usually its posted in their system, but that one wasnt.
But, after thinking about it, I had the screen on 100% brightness because of glare I was getting. Will tone it down and went to utkanos kernal and see how that rides out.

You need to get a charger with more power. I got one made for an ipad. It has 2 USB ports. Made by scouche or something like that. Had this issue with multiple chargers even on my droids.

this is completely normal for other phones too, like the nexus one. using NAvigation with the car dock pulls more power than the charger can supply, so the phone slowly drops while charging. not much can be done about it. i bought a 1.3 amp car charger. helps a bit.

Touchscreen issues when charging

Anyone having issues with your touch screen when you are using it while it's chArging? Just wondering if i have a faulty device or are there others with the same problem
Sent from my HTC One X using xda premium

No my device does not have this issue when charging. I think this issue has something to do with the charger.

That's a grounding problem, had it with my SGSII try a different cable.

The sensation had an issue of touchscreen problems while charging. i went through 3 phones. The cause is the same cause as the wifi errors that people are having with the HOX. Bad connection from unibody(sensation) to board.. If we added aluminum foil or solder (just like the HOX wifi issue) it would fix the problem. On the sensation the problem got really bad to where you couldnt unlock the phone with the lockring. grounding issue. I hope the HOX isnt having that same issue and you just have a bum phone or better yet a bum cord or charger. let us know if its either

yeah happened alot on my s2, was due to usb cable or something
but works fine when im charging

It was the grounding issue, does this damage the phone? I have a wall outlet with USB ports so it might emit too much power
Sent from my HTC One X using xda premium

slojko said:
It was the grounding issue, does this damage the phone? I have a wall outlet with USB ports so it might emit too much power
Sent from my HTC One X using xda premium
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Every time this has happened it has been because of what the USB cable was plugged in to and not the cable itself. Try the charger it came with in a regular plug. If it doesn't work better then it is a phone problem.

This happens to me too. Charging from the laptop with an eBay (chinese) cable causes the touchscreen to be unresponsive.
Here's how to test: Open the Notes and draw a few lines very fast.
Here's the results:
USB Charging
No USB Charging

Here is a video of it happening to me on my skyrocket. It was because of the charger. Try a different cable, then a different wall adapter.
http://www.youtube.com/watch?v=x__jdlGXyjk

It is because of the charger...it's always recommended to use the charger that came with the phone eventhough they give us a tiny a$$ USB cable.
Sent from my HTC One XL using Tapatalk 2

Yes, I have an issue - when the phone gets to 90%+ while charging, the screen becomes very unresponsive. The drags don't drag - instead the touches are registered as taps.
You can get an app like MultiTouch Test - and you will see, it's very clear to see when this happens.
My first One X device did not have this issue, so it's something specific to my current unit. Doesn't bother me much, since it only happens at 90%+ charge, while plugged in...

neocryte said:
My first One X device did not have this issue, so it's something specific to my current unit. Doesn't bother me much, since it only happens at 90%+ charge, while plugged in...
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To me it doesn't happen all the time, sometimes it happens, sometimes it doesn't. Unplugging the cable and plugging it back in seems to temporarily fix the problem, if I leave it charging for a couple more minutes, I think the problem will come back, but again, unplugging/plugging it back, solves it temporarily. It's weird...
Oh, and all this to say that I observed this behavior while charging around 65%, not 90%. And I've only observed this while charging with AC power with the original cable and charger. The problem did not present itself (yet) while charging through USB.

Touchscreen While Charging
Nazgulled said:
To me it doesn't happen all the time, sometimes it happens, sometimes it doesn't. Unplugging the cable and plugging it back in seems to temporarily fix the problem, if I leave it charging for a couple more minutes, I think the problem will come back, but again, unplugging/plugging it back, solves it temporarily. It's weird...
Oh, and all this to say that I observed this behavior while charging around 65%, not 90%. And I've only observed this while charging with AC power with the original cable and charger. The problem did not present itself (yet) while charging through USB.
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I just had this happen with the stock charger from my old HTC One using it on my HTC One X. Along with touchscreen problems it got VERY hot located as you are looking at the camera side it got hot on the top right side near the camera. Dunno what that could be. Both chargers are rated at the same voltage and amperage, I dont get it
jmdwyer

jmdwyer said:
I just had this happen with the stock charger from my old HTC One using it on my HTC One X. Along with touchscreen problems it got VERY hot located as you are looking at the camera side it got hot on the top right side near the camera. Dunno what that could be. Both chargers are rated at the same voltage and amperage, I dont get it
jmdwyer
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It's caused by electrical noise. The voltage supplied from your mains outlet is alternating current (typically 50/60hz in frequency). a usb charger has to do two things; firstly step down the voltage (110v/230v/240v down to 5v) and secondly rectify the alternating current into direct current (positive and negative). how it does this is by using a transformer which employs an iron core surrounded by copper windings, this generates a lot of rf (radio) which travels down the cables to the device as well as broadcasting a short distance through the air, a decent charger will use shielding as well as a few other pieces of circuitry which will neutralize the rf given off. In order to rectify the voltage the charger will use a variety of diodes and capitors, in a cheap Chinese charger they will typically use as little as 2 and possibly a generic chemical capacitor (similar to a small battery) these degrade over time and can get quite hot, fat and eventually burst - when you hear about chargers exploding or setting on fire it's usually because the capitors aren't up to the job. a Chinese charger may have all the quality control and certification stamps but most of them are forged, if you buy a charger for less than $10 this is what your likely to end up with. the outputted voltage may appear 5v on a multimeter but they are a very dirty output and can spike from 3v to 7v or even more the load on the charger increases. The dirty output interferes with the mechanism used on touch screen devices which also employ a type of capacitance to register where you are pressing on the screen. A decent charger will use solid state capitors and which should last a lifetime.
if the smartphone miss behaves whilst charging 90% of the time it's because of a faulty charging device (or one employing poor components). a decent charger may cost more $20 but they are significantly safer for both you and the device.
The problem with mains sockets with built in usb usually comes down to shielding, they will either have none or be earthed (which might sound like a good idea but in practise a lot of domestic devices will create leakage to earth causing more noise - alot of studio equipment will have a separate earth). These may not be as dangerous as cheap Chinese chargers but still undesirable.
If a original or good quality charger isn't available one of the best sources for charging a phone will actually be a desktop pc with a usb3 port. The whole pc is insulated in a nice metal case and there are a plefora of high quality components to create a stable clean power supply (a cpu voltage tolerance is usually measured to 2 decimal places of a volt which is pretty good).
Ditch the rubbish cheap chargers, you honestly get what you pay for and they aren't good for the long term health of the phone. If it hums or makes a high pitch noise whilst plugged in your playing with fire - literally. they aren't bothered if your phone dies in 6 months or bursts into flames so long as they get the $5 x 100,000 people who buy them (these things literally cost pennies for them to put together, even though the case might look the business inside they are nasty and as cheap as)
Sent from my HTC One XL using Tapatalk

Very insightful. The worst part is that I have two original HTC chargers and they both emit the high pitched noise.
Sent from my Evita

timmaaa said:
Very insightful. The worst part is that I have two original HTC chargers and they both emit the high pitched noise.
Sent from my Evita
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Click to collapse
Some of the very small chargers might whistle a little, its called coil noise and isn't as bad as capacitors about to pop. The iron core hasn't been sufficiently dampened or glued into the case so it resonates when the ac passes through it, the pitch may change depending on the voltage (whether its a 230v or 110v power supply). It isn't unsafe but HTC should be doing a better job at checking the new chargers, over time most chargers will develop coil noise as glue tends to melt or degrade.
Very insightful video, you'll never buy a cheap charger again
https://www.youtube.com/watch?v=wi-b9k-0KfE&feature=youtube_gdata_player
The gist being the cheap chargers could very well set on fire and the USB could go live at mains voltage with no circuit protection, death traps spring to mind. Be careful what you buy.
Sent from my K701HBC using Tapatalk

Charger squeek

My charger squeeks. When the tablet (or dock) is plugged in, and is fully charged, the charger starts squeeking. When I unplug the proprietary connector from the tablet/dock the noise stops. Whenever there is something to be charged (either dock or tablet), the squeeking stops.
So basially, the charger only squeeks when it is plugged in and not actually chaging, and does not squeek when it is plugged in and 'idling'.
Anyone else have this issue? I have a European/Dutch outlet connector btw.
Sent from my ASUS Transformer Pad TF700T

Vo01985 said:
My charger squeeks. When the tablet (or dock) is plugged in, and is fully charged, the charger starts squeeking. When I unplug the proprietary connector from the tablet/dock the noise stops. Whenever there is something to be charged (either dock or tablet), the squeeking stops.
So basially, the charger only squeeks when it is plugged in and not actually chaging, and does not squeek when it is plugged in and 'idling'.
Anyone else have this issue? I have a European/Dutch outlet connector btw.
Sent from my ASUS Transformer Pad TF700T
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Click to collapse
Same here, and it is normal behavior and nothing to worry about. As far as I know, it's just a higher frequency version of the well-known 50Hz 'hum' and has to do with electronics in the charger. Most transformers (i.e., power converters) have this, as even when you unplug your device, there is still induction going on in the secondary spool of the transformer, and therefore, it is still 'working', albeit with no actual, useful output.
That's also why a power converter still consumes electricity if you simply unplug a charged device and then go to school/work/whatever -- to stop it from '' bleeding', you need to unplug the charger itself from the wall socket.
Check some others you may have laying around and if you put your ear close enough, you'll hear them doing it too. Hell, even my television set does it.

Eek, Dutchies invasion!
Anyway, Yep, same here.
You guys sure it isn't a Dutch plug problem? That's three of us now..

I've noticed this on mine here in the US, but I'll try to pay more attention and see if it does it on our 60 Hz frequencies or not.
Sent from my ASUS Transformer Infinity Running Tapatalk.

johnlgalt said:
I've noticed this on mine here in the US, but I'll try to pay more attention and see if it does it on our 60 Hz frequencies or not.
Sent from my ASUS Transformer Infinity Running Tapatalk.
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Itwill probably do exactly the same, although at a 20% higher frequency. EDIT: actually, that might be a good thing if you're slightly older, for I must admit the frequency of the beep is very annoying (I have pretty good hearing, and the tablet signalling it is charged from next to my bed is irritating to say the least....).
And, err... yeah, it was kinda obvious this attracted a lot of attention from the Low Countries. Luckily, I am pretty sure we all have the same kind of electricity (and applicable laws of physics).

Annoying is understating it just a tad... The noise is reminiscent of a humongous mosquito on steroids preforming a carnaval fanfare at 0200. Only this one I can not silence with a good whack from a swatter. (Bit expensive..)
Oh no! I have a very special kind of Twents electricity! The non-existent variant. Dear Essent, kindly put your football reruns on pause and get your lazy arses back to work! :silly:
Send form my HTC HD2

ShadowLea said:
Annoying is understating it just a tad... The noise is reminiscent of a humongous mosquito on steroids preforming a carnaval fanfare at 0200. Only this one I can not silence with a good whack from a swatter. (Bit expensive..)
Oh no! I have a very special kind of Twents electricity! The non-existent variant. Dear Essent, kindly put your football reruns on pause and get your lazy arses back to work! :silly:
Send form my HTC HD2
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Click to collapse
Yeah, the Dutch electricity is among the best in the world... IF you have it available. Seems we're having cutouts more often than in the past, although that might be me getting old.
When I charged the 700 overnight for the first time, my girlfriend/now wife poked me awake -- since I hold the designated household mosquito killer position -- that there was this HUGE mosquito that needed swatting. She said it sounded so humongous that she was scared that if the thing would bite, she would be sucked empty as a flat tire. :laugh: I saw nothing, obviously, only hearing a slight beep, only finding out the most probable suspect the next morning.

Yes, they do seem to become increasingly more common... Probably because the companies have a hard time realizing the calendar says 2012 and not 1912 Ironically, they nearly always coincide with a football match...
That was one very expensive 10,1 inch sized mosquito! :laugh: At least it doesn't fly... (I hope not O_O)

Vo01985 said:
So basially, the charger only squeeks when it is plugged in and not actually chaging, and does not squeek when it is plugged in and 'idling'.
Anyone else have this issue? I have a European/Dutch outlet connector btw.
Click to expand...
Click to collapse
Another NL here, I hear it too. I usually have it charge next to my bed, as well, and the sound sometimes wakes me up. It's not uncommon though. I have a charger from a Dell laptop that has the same issue.

xcal321 said:
Another NL here, I hear it too. I usually have it charge next to my bed, as well, and the sound sometimes wakes me up. It's not uncommon though. I have a charger from a Dell laptop that has the same issue.
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Click to collapse
the chargers use choppers . please do search on wikipedia or google about them. it is a normal behaviour . you are welcome my friends
Sent from my GT-N7000 using xda app-developers app

gbb14 said:
the chargers use choppers . please do search on wikipedia or google about them. it is a normal behaviour . you are welcome my friends
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Yea we figured as much
We're just doing what us Dutchies do best: Complain to eachother about it.

MartyHulskemper said:
Itwill probably do exactly the same, although at a 20% higher frequency. EDIT: actually, that might be a good thing if you're slightly older, for I must admit the frequency of the beep is very annoying (I have pretty good hearing, and the tablet signalling it is charged from next to my bed is irritating to say the least....).
And, err... yeah, it was kinda obvious this attracted a lot of attention from the Low Countries. Luckily, I am pretty sure we all have the same kind of electricity (and applicable laws of physics).
Click to expand...
Click to collapse
I have an unusual sensitivity to high frequency noises. However, I misstated my original post - I meant to say I have not noticed it thus far.
I am slightly older (41) but I also have tinnitus in my ears, so it's a bit strange that I am s attuned to high frequency noises at all. Maybe if I am lucky, the whine is at the same frequency as the ringing in my ears, and it is thus in phase or canceled out?

johnlgalt said:
I have an unusual sensitivity to high frequency noises. However, I misstated my original post - I meant to say I have not noticed it thus far.
I am slightly older (41) but I also have tinnitus in my ears, so it's a bit strange that I am s attuned to high frequency noises at all. Maybe if I am lucky, the whine is at the same frequency as the ringing in my ears, and it is thus in phase or canceled out?
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I dunno -- I'm 33 years old and have tinnitus as well, and I am very high-frequency sensitive, as well. Might be the condition in itself, or maybe everyone has tinnitus when you'd measure but most people just do not have the hearing to pick it up <?> -- talk about bending a disadvantage to something positive, hahaha! It depends on the build and proportions of your inner ear, though, which explains why I pick it up so clearly and you seem not to. Call yourself lucky though, for I have taken to charging it during the day when I am at home and busy with the kids, or in the hospital during a shift, when I don't have that much time to play around with it anyway. I try to avoid the overnight charging at the moment; I might pick it up where I left if/when my hearing goes south and I can't make it out anymore.
EDIT: slightly (at best) off-topic, but can you hear the power converter of a cathode-ray television set when you turn it on? I can hear all kinds of electronic equipment being turned on -- with the volume down to zero, obviously, for the humorously-inclined in here.

I'm just wondering. Switching power supplies typically operate between a few hundred KHz and a couple of MHz or so. To keep the same output voltage when there is no or very little load however, they often employ a "hiccup" mode. It wakes-up at, or near ultrasonic frequencies. At 240V input, it hiccups at a lower frequency than at 120V, shifting down to the audible range. It's likely that the magnetic components employed resonate acoustically, so only certain load and input voltage range will result in an audible pitch. It may not help with the problem, but at least we could have some sort of an explanation handy?
If the squeek is too loud though, I'd be thinking to RMA it and try to get a quieter one. I can't hear mine unless I put the adapter to my ear. I wonder how common the problem is? If the vibration is too strong though, some components could eventually fail.

If I can dig it up again, I'll hang the TF700 onto the USB wall charger thingy I have -- I can transplant the cable, so that shouldn't be a problem. What could be a problem, however, is its charging capacity -- I can see how the Tf700 outruns its supply, at least when it's trying the charge it while the 700 is running... (Kinda like trying to charge your car battery with rechargeable AA batteries. )

MartyHulskemper said:
If I can dig it up again, I'll hang the TF700 onto the USB wall charger thingy I have -- I can transplant the cable, so that shouldn't be a problem. What could be a problem, how ever, is its charging capacity -- I can see how the Tf700 outruns its supply, at least when it's trying the charge it while the 700 is running... (Kinda like trying to charge your car battery with rechargeable AA batteries. )
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You're right. I think if you are using any USB charger to charge TF700, you might get disappointed. It'll be the same as charging it via any USB port, verrryy slowly... The thing is, TF700 internal charging circuit must be limiting the power it draws to less than 2.5W, since USB 2 standard limits consumption to 0.5A. The Asus tablet charger's label indicates that it can put out 2A at 5V or 1.2A at 15V. On the other hand, the tablet's cable uses a special USB plug that has a fifth pin deep in the middle. So, don't use any USB extension cables to charge when you're in a hurry. When the tablet's USB cable is plugged in, the Asus wall charger detects this 5th pin then steps up its output to 15V. Now the TF700 can draw as much as 18W to charge its battery and to power the tablet simultaneously. Sorry, I'm getting off topic here.

[Q] New Nexus 5 making buzzing sound whilst charging?

Hey there,
I've owned three nexus 5's and I just bought a 4th and I notice that the back makes a slight buzzing sound when charging. I know the LG wall chargers make a sound but this is coming from the device itself. Only happens when charging and the phone keeps a good charge so I don't thinks it's a faulty battery.
Sounds like it's coming from the middle to top part of the rear, where the battery connects to the logic board. Could it be a faulty battery, just a transformer or something more serious?
Also I left it charging for 7 hours overnight, no issues.
Thanks in advance

Anyone?

For me it has no noise while charging, but the charger gets very very hot. Pay attention to your device while charging, check if the device or the charger temperature is higher than it was supposed to. For me the charger might get to 70ºC, it almost burns my hand sometimes mainly if charging 2 devices at once.
Have you tried plugging in a headphone to it and see if the noise goes with the audio?

LukasFS said:
For me it has no noise while charging, but the charger gets very very hot. Pay attention to your device while charging, check if the device or the charger temperature is higher than it was supposed to. For me the charger might get to 70ºC, it almost burns my hand sometimes mainly if charging 2 devices at once.
Have you tried plugging in a headphone to it and see if the noise goes with the audio?
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Click to collapse
The charger is fine and the buzzing/humming sound isn't coming out of the speaker, it's coming from the rear of the phone itself. Temperatures for phone and charger are normal.