yashsingh1/xdaforums huggingface dataset:
[HTC 10 Questions & Answers] klarthur:
I can replicate this on my Verizon HTC 10. The high pitched noise isn't loud or anything, but if I'm listening for it I can hear it if I put my ear to it (both bottom and top speakers.) The noise seems to go away when I make a phone call. I really don't consider this to be an issue... it's not noticeable unless I'm specifically trying to listen for it and put my ear up to the speaker, and only when it's at low brightness. /shrug
[HTC 10 Questions & Answers] Heisenberg420:
Yeah I'm torn on whether or not it's a problem for me. Right now it's driving me literally crazy lol. Whenever I'm in a quiet room, and brightness is below 30%, I hear it faintly, then I hold it up to my ear and it's a high pitched dog whistle making my brain bleed. It's making my ears ring even when not on my phone. I currently obsessing over it lol.

I'd like figure out whether or not this is present on all devices though.
[HTC 10 Questions & Answers] klarthur:
Understandable. You can count me in the "Yes" column. I believe this has something to do with the LCD though, possibly with the refresh rate or something? Not 100% sure, but if you google search "high pitched noise from speaker when at low brightness" there are quite a few posts about people having this issue with LCD's in particular, even some older Nexus devices. I'm also interested to see if others have this issue, but my guess is all HTC 10's will do this...
[HTC 10 Questions & Answers] george241312:
Don't have this problem I'd say your units are defective.
[HTC 10 Questions & Answers] Heisenberg420:
You have a US unlocked?
[HTC 10 Questions & Answers] StilsonCanyon:
US unlocked and can't reproduce this issue.
[HTC 10 Questions & Answers] elshagon:
I tried it and can't reproduce the same thing
[HTC 10 Questions & Answers] jaredkzr:
I can't reproduce this on my unlocked US model either or at least I can't hear it. How high pitched are we talking? I can usually easily hear tones up to around 19 kHz.

Edit: So mine does make a quiet tone with the brightness between about 5-10%. I can't hear it unless I hold the bottom speaker right up to my ear so this is a non-issue for me.

It's probably the pwm for the backlight that causes this.
[HTC 10 Questions & Answers] klarthur:
Just to clarify, to me this sound is difficult to hear, not loud at all and it's not a consistent noise when the brightness is low. Make sure the phone is on about 5-15% brightness and hold your ear to the bottom speaker. It's a very high pitched sound. I believe the sound is coming from the LCD, I doubt our units are defective, but it's possible I guess...
[HTC 10 Questions & Answers] Heisenberg420:
He described it pretty well. It's a squealing, I can hear it holding the phone about 15 inches away, faintly. It's the pitch of the sound that's irritating, very high.

If you guys know what panel (tianma / sharp) your device has, could you post that as well.
[HTC 10 Questions & Answers] klarthur:
I have a tianma screen
[HTC 10 Questions & Answers] Heisenberg420:
Same here
[HTC 10 Questions & Answers] klarthur:
Just saw this here: https://plus.google.com/109103813437959718469/posts/iPvCjjqKR2k

Looks like there was an issue with it on the 2015 Pixel too.

Google's Response:

Seems it's such a high frequency that not everyone can hear it... I'll bet it's the exact same situation here.
[HTC 10 Questions & Answers] Heisenberg420:
Well I just summoned another HTC 10. I had ordered two and cancelled one but they shipped it anyway so I refused delivery. Just went to my local FedEx facility and picked it up.

So I'll test that one out shortly.
[HTC 10 Questions & Answers] joewoo:
most people can not hear that frequency... its the same sound older crt tvs emit... i would be able to walk into the living room and know the tv was on before i stepped in....

im betting they all do this... not everyone can hear it....
[HTC 10 Questions & Answers] klarthur:
Agree completely... I was always one of those who could hear that frequency on those old CRTs too :) I'll just live with it, it's not a big inconvenience to me. The only time I'll have my face close enough to hear it will be when making calls, and it doesn't make that sound when calling
[HTC 10 Questions & Answers] Heisenberg420:
Well I'm starting to believe your right, it's on all devices.

The new one that I just opened has the same thing.

I'm not sure how people aren't hearing it. All it takes is a quiet room and it's such a piercing ring. I can literally hold it 12 inches from my face, and move it from side to side and hear the sound moving with the phone.

I've noticed a few things that cause it:

- the brightness is below 30%. 30-40 it's unnoticeable but still there if you hold the screen up to your ear. Above 50 it's gone.

- the background of the screen affects the pitch. The darker the background the louder and higher the pitch is.

I can live with it through the day. When I use my phone before going to bed, or just waking up I usually use my phone at 0% brightness. It's extremely noticeable even a good distance from my face at that point.
[HTC 10 Questions & Answers] iz1pp0:
I hear it as well... HTC 10 gold, sim free - Spain
[HTC 10 Questions & Answers] jollywhitefoot:
I don't have any noise from mine. Unlocked variant. But I tested AFTER I took the OTA that dropped today. Maybe it's fixed? I have the tianma screen
[HTC 10 Questions & Answers] jaredkzr:
Well, this is weird. I managed to hear the noise at around 10% brightness just over an hour ago. After installing the OTA, I can no longer reproduce the noise. I went through the exact same steps as before and just cannot get it to make the noise again. This might just be some random fluke. We need some more people to test before and after the OTA to see if it actually stopped the noise somehow.
[HTC 10 Questions & Answers] Heisenberg420:
Interesting. I have not yet installed the OTA. Will do it now and report back
[HTC 10 Questions & Answers] lagittaja:
They may have adjusted the software. When I get my 10, I'll check this before/after I install 1.30.

But yeah, what you guys are hearing is PWM buzz from the backlight.

Typically the control signal should be 25kHz or higher (like with PC fans) but there might have been a typo somewhere and they fixed it.

We're/you're lucky that it's only just barely noticeable at that low of a brightness.

Some PWM backlights start buzzing as soon as you lower the brightness even 10%..
[HTC 10 Questions & Answers] Heisenberg420:
OTA fixed it for me!

You have no idea how relieved I am lol. That was almost a deal breaker for me. I listened to the whining noise for about 45 min last night and I woke up with a migraine and ringing in my ears. Like I could still hear the ringing after turning off the phone.

Anyway, really surprised it was a software issue. Seemed like it was definitely hardware, possibly even faulty ground connection for the speakers. Guess not!
[HTC 10 Questions & Answers] jaredkzr:
That's great news! I'm also surprised that it was a software issue. I bet [MENTION=3437396]lagittaja[/MENTION] is right that HTC made a typo somewhere in the PWM code. Plugging 2.5kHz into a tone generator does sound similar to what I heard before the OTA. It's possible that that's what was in the code rather than 25kHz.
[HTC 10 Questions & Answers] Heisenberg420:
Whatever it was I'm just glad it's fixed and now this phone is legitimately flawless
[HTC 10 Questions & Answers] elshagon:
In a quiet room I turned the brightness down and I can hear it if I put my ear up very close.
[HTC 10 Questions & Answers] klarthur:
Very glad to hear! It didn't bother me too much, but glad to know the OTA fixes it! Hopefully Verizon will push out the OTA soon
[HTC 10 Questions & Answers] Heisenberg420:
Have you taken the OTA yet?

I literally can't hear a thing now
[HTC 10 Questions & Answers] elshagon:
No update for me yet.
[HTC 10 Questions & Answers] george241312:
Yes U.S Unlocked Silver. And if it was there I am 100% that i should be able to hear it.
[HTC 10 Questions & Answers] Markaner:
I have an unlocked bought in Sweden and I can hear it.
[HTC 10 Questions & Answers] -Vulture-:
I'm on latest update here in Germany and i can hear this noise only when the display is active AND I'm connected to a charger with a USB 3.0 data cable. When I use the delivered 2.0 cable, everything is fine.
[HTC 10 Questions & Answers] mnp:
UK unlocked 1.30 base. I can hear it quite loudly. Have tried switching the colour temperature to Vivid, sRGB, its the same. I do have f.lux installed but that doesn't make a difference either. Will try flashing stock base again, but this is driving me a bit crazy.
[HTC 10 Questions & Answers] wtpek:
UK unlocked from HTC direct. I can hear the super high pitch noise whenever I turn on the screen. Pretty annoying. Hopefully HTC UK will fix it soon (running 1.30 base after OTA)
[HTC 10 Questions & Answers] mnp:
I've tested it in TWRP and its the same thing, therefore its pretty safe to say its a hardware issue rather than a ROM issue, which means its unfixable with an update :rolleyes:
[HTC 10 Questions & Answers] jollywhitefoot:
Probably a kennel or firmware issue. US users have reported 1.53 fixes it. UK users should wait for next update. I think 1.30 was just an intermediate update.
[HTC 10 Questions & Answers] mnp:
Thanks for that. I'm assuming the kernel gets fully loaded up before TWRP loads up, therefore that is why it still happens in both the ROM and TWRP?

If that is the case then I'll hold off on sending it back for an exchange and wait for a fix.
[HTC 10 Questions & Answers] jollywhitefoot:
Better ask Captain_Throwback for sure, but I think TWRP is compiled using the stock kernel
[HTC 10 Questions & Answers] mnp:
[MENTION=1162986]Captain_Throwback[/MENTION] is this the case that TWRP is compiled from stock kernels and if there is an issue like screen whining sound at dim brightness levels, it would replicate in both ROM and TWRP the same?
[HTC 10 Questions & Answers] Captain_Throwback:
TWRP uses the stock pre-built kernel from the 1.21.617.3 Unlocked Edition, yes. I don't know anything about this issue, but if it's a kernel issue, then I suppose it would also exist in TWRP.
[HTC 10 Questions & Answers] mnp:
That makes sense. Thanks so much for shedding light on it. Hopefully a new UK/EU base update will include the same one as the US that apparently fixes the issue.
[HTC 10 Questions & Answers] Captain_Throwback:
Guess that means I need to update the TWRP kernel, too. I'd better do that now, before I forget....
[HTC 10 Questions & Answers] mnp:
Sorry don't know where those question marks came from! That would be amazing if you managed to update the kernel for it, then I could test and see if a future ROM kernel update would fix it. I'm quite close to sending it back for a replacement but I think in time an update would fix it :)
[HTC 10 Questions & Answers] afuller42:
I have a rooted Verizon version and its there with brightness turned all the way down. tianma screen. I haven't updated any firmware yet. Only noticed it cause of this post :( now it will bother me.
[HTC 10 Questions & Answers] mnp:
Sorry about that! Good news is there is hope for a fix with a future kernel update :eek:
[HTC 10 Questions & Answers] Captain_Throwback:
FYI the latest official TWRP on twrp.me (3.0.2-3) is built using the 1.53 stock kernel. So you can see if this issue persists.
[HTC 10 Questions & Answers] mnp:
Thanks Cap'n. Tested it out. It's 50% better. Used to start whining around 60% brightness and lower getting progressively higher pitched and loud the lower the brightness. Now it triggers around 30% and lower but half as loud...

Must be some low level kernel stuffs for sure.
[HTC 10 Questions & Answers] Captain_Throwback:
Then it must not be completely fixed in the kernel, if it's still happening in TWRP.
[HTC 10 Questions & Answers] mnp:
Yeah. Am surprised this isn't reported by more users to be honest. Hopefully once the source is released some clever dev would be able to figure out what's causing it possibly by comparing the two kernels which do and don't produce it.

Very frustrating though. Am tempted to do a warranty return but am abroad for some time yet :eek:
[HTC 10 Questions & Answers] Heisenberg420:
Well after the 1.53 update its 100% gone for me. Haven't tested in TWRP yet. Might test it out later but that noise is haunting lol. The type of ringing that just stays in your ears all day. I really feel for you guys still experiencing it.

Although you guys should be able to, with s-off and a US CID, flash the US 1.53 firmware?

Also I did call HTC (US) and report this and they said they were unaware of it and opened an investigation in their 'special project team'. Even though I received the OTA later that day, they did seem very interested in it.
[HTC 10 Questions & Answers] mnp:
Do you think in theory, it would be possible to make a flashable zip from the 1.53 kernel to flash it in TWRP for 1.30 LeeDroid ROM for example?
[HTC 10 Questions & Answers] Heisenberg420:
This noise seems to be preset on ROMs based on firmware prior to 1.53. Also still present in TWRP 3.0.2-4 which is built with 1.53 kernel.

Edit: NVM latest kernel source is 1.21. that explains why it's still present in TWRP

Although haven't noticed anyone reporting it on popular ROM threads, so it could be a hardware issue with US models where they implemented some mutli-software-level workaround, or most people's ears are immune to this high frequency. I find the latter hard to believe as I'm pretty sure it's not as high as the 5th band EQ sound when creating an audio profile. That tone is probably 12-14khz, so less than that.
[HTC 10 Questions & Answers] Captain_Throwback:
TWRP 3.0.2-4 isn't built with the 1.53 kernel as that source isn't available.
[HTC 10 Questions & Answers] Heisenberg420:
Ah right lol. My mistake so it must be kernel level after all.
[HTC 10 Questions & Answers] Captain_Throwback:
3.0.2-3 was built with 1.53 if you want to see how that one is.
[HTC 10 Questions & Answers] Heisenberg420:
Confirmed. It seems to be a bit quieter on 3.0.2-3, but definitely still present. Not really a problem though, personally I usually keep at least 50% brightness in TWRP and can't hear it at that level.

I did try Leedroids ROM, 1.30 base, and restored my stock 1.53 boot image and the noise is completely gone. Weird.
[HTC 10 Questions & Answers] mnp:
Thanks for the info. I'm going to have a go at installing 1.53 tomorrow to see if mine shuts up. Will report back findings. I suspect it will be quiet.
[HTC 10 Questions & Answers] mnp:
Right, been doing some more research. The issue is with the Sharp panels (not Tianma) making the noise on 1.21 and 1.30 EU/UK based ROM's.

I installed 1.53 US BadBoyz ROM on my HTC unlocked UK variant handset and can confirm the noise is reduced by 90%.

On the 1.21 and 1.30 bases the following noise happens:

- Anything below 50% brightness noise starts

- As you decrease brightness the sound pitch gets higher and higher all the way down to zero brightness slider level

On 1.53 US ROM:

- Between 50-60% brightness there is still a high pitched noise but it is much less than the above

- Above 60% brightness, no noise

- Below 50% brightness, no noise

So we need to wait for the UK/EU 1.53/3.18.20 Kernel or similar base to see some real improvements.

I did install flar's new HTC 10 kernel this morning on LeeDroid with his lower brightness mode and this seems to solve the issue on the lower end brightness noise, but the screen is noticeably dimmer, which I actually prefer. It seems there are some brightness level/voltage regulator table values that create this noise which might be completely unavoidable altogether, but there are some signs of improvement thankfully.
[HTC 10 Questions & Answers] Heisenberg420:
Interesting you still have the noise on 1.53.

I have a tianma panel, and on 1.53 kernel the noise is completely gone. Tested 50-60% brightness range as well.

Also keep in mind most ROMs come with either 1.21 or 1.30 kernel. (Haven't checked the one you mentioned though) ElementalX is based on 1.21 source I believe. I had to restore my stock 1.53 boot image over Leedroid to get the noise to go away.

So yeah not so sure it's related to the panel manufacturer, I think most people said they have tianma early in this thread.
[HTC 10 Questions & Answers] afuller42:
Using Ex kernel the buzz is gone ony tianma. Makes me happy.
[HTC 10 Questions & Answers] blane237:
I have a US Sprint version with a Sharp panel and running software version 1.24.651.3 and mine has this noise issue. For me it happens when the display brightness is under 20% and when I go above that it goes away.

As an aside, I have noticed that my battery drops extremely fast when the display is on. On a very good day, I'm seeing about 4 hours SoT And according to GSAM battery monitor, my display accounts from anywhere between 60-72% of my battery consumption. My question is, if they correct the value put in for the control signal for the backlight, would that inherently improve battery life or would that not matter?
[HTC 10 Questions & Answers] earazi:
I'm experienced that exact same thing as [MENTION=5169050]blane237[/MENTION] I'm running the Sharp panel bought from HTC UK.

I'm running 1.30.401.1 and kernel 3.18.20

I can hear the high pitch sound and the battery usage is rubbish, worse than my old M8 :( I've heard the fix in the new kernel is around the voltage supplied to the screen so maybe it would also resolve the battery issues but I'm actually tempted to return the phone.
[HTC 10 Questions & Answers] mnp:
Thats interesting about the kernel updates. I'm on the same base/kernel as you with the same issues. The US region has the updated kernel so I imagine it will come our way very soon. You could also run BadBoyz 1.53 ROM.
[HTC 10 Questions & Answers] Heisenberg420:
Probably nothing significant. Voltage table adjustments don't make a huge difference in battery life at the end of the day.

You've got wakelocks holding your device awake. Although your screen usage % does seem a bit higher than mine, usually around 50-60%. I usually keep low brightness though
[HTC 10 Questions & Answers] earazi:
Not sure what's causing the wakelocks, don't really want to root at the Barclays bank app won't work (any ideas of how to find out?)

However I've disabled a few apps and turned of location services, disabled Google Now. I also last night charged the phone on a normal 2.1amp charger rather than the quick charger and the battery problem seems to have disappeared. I've used 9% in over 4 hours. I wonder if the battery stats were a bit messed up on the phone.
[HTC 10 Questions & Answers] Captain_Throwback:
Anyone want to see if the latest TWRP (3.0.2-5) still has this issue?
[HTC 10 Questions & Answers] Heisenberg420:
Tested, it's gone

Thanks :)
[HTC 10 Questions & Answers] mnp:
Still there between ~22-48% brightness values. It is a lot less than on the 1.53 kernel, but it's still there annoyingly :(

With Sharp panel, 1.80 firmware/ROM/Kernel combo.
[HTC 10 Questions & Answers] Htcalijr:
I have same problem but in my case it is like these every time when I play music or any sound there is noise in bottom speaker my phone isn't physical damaged or some thing I tried every thing didn't fix it when happened to my I were using viper rom2. 2 and ex kernel and some kind of fix that said fix battery drain added to same kernel :(
[HTC 10 Questions & Answers] Nicolapicola:
High pitched noise here when using phone increases slightly when using whatsapp almost like thatbsound old tvs make
[HTC 10 Questions & Answers] :
T-Mobile version here and no noise.
[HTC 10 Questions & Answers] Heisenberg420:
Wanted to bump this thread since I'm getting this noise again...

After upgrading my FW to 2.38.617.8 I'm hearing the same high pitched whine, when this screen is OFF. It also seems to be coming from the back of the phone this time. It's slightly audible when the screen is on and you hold the lower back of the phone to your ear. But if you're like me and are cursed with perfect hearing it's very noticable when the screen is off and have the phone near you, especially if it's faced down.

I've observed this on stock ROM, ICE, and LOS. Haven't tested if custom kernels fix this but it's likely a firmware issue as it was last year. Hopefully they are aware of it.
[HTC 10 Questions & Answers] grat_master:
Found a solution yet ?

I am experiencing the samething right now. I tried LeeDroid stock kernel, CleanSlate kernel, ElementalX kernel, Viper10, stock US Unlocked RUU and it is still there. I read somewhere this is a Kernel related problem but I can't manage to fix it.
[HTC 10 Questions & Answers] Heisenberg420:
Haven't found any solution yet. I'm currently on US firmware 2.41.617.3 and still get it when the screen is off.

I've tried a few custom kernels and they don't seem to fix it. I did observe on LOS + stock LOS kernel I get the noice when the screen is on as well. LOS + sense based kernel = same as everything else (ie sound only when screen is off)

I'm not sure if the .4 firmware is out in the US yet but I'm keeping my fingers crossed every time I update FW
[HTC 10 Questions & Answers] Hel10s:
Yes, I have tried to put the phone next to my ear, the back, you hear a continuous beep, and when you turn on the screen is more sharp.

Because we are talking about noises here :p Does anyone hear a kind of white noise on the speakers? Especially in the speaker below, you can see in quiet environments, low volumes or pausing the playback of any sound, this white noise is heard for 3 or 4 seconds.

Example of the noise: https://www.youtube.com/watch?v=gMiBWQF-ryg

Edit: Im on Nougat, 2.41.401.3, Europe.
[HTC 10 Questions & Answers] xhr1s:
HTC One m9 (T-Mobile) here with the same squealing dog whistle coming from bottom speaker when the screen is low brightness. Only noticed it after replacing the screen... maybe it has to do with the proximity of the ribbon cable /digitizer chip to the lower speaker?
[HTC 10 Questions & Answers] nexus741:
Same here. The coil whine is louder when the sceen is off on the back near the htc logo.
[HTC 10 Questions & Answers] Hel10s:
Yep, same to me, but the phone its working right, it hasnt done anything strange, so i think should be normal. I have it for 4 months.
[HTC 10 Questions & Answers] nexus741:
When did you buy the phone?
[HTC 10 Questions & Answers] Hel10s:
18, January. I bought it on HTC web.
[HTC 10 Questions & Answers] nexus741:
Did your phone have the coil whine before the Andriod 7.0 update?
[HTC 10 Questions & Answers] andybones:
Weird. Verizon variant, bought release day.

Still on MM firmware.

def hearing coil noise near the htc logo on the back on the device.. I can hear it through my case even.

I don't think it's causing any problems. not yet anyway. strange non-the-less.

:confused::confused:
[HTC 10 Questions & Answers] nexus741:
Exactly the same as you. Sometimes it is quite loud.:(:(
[HTC 10 Questions & Answers] mylostone:
Thank you Arthur Fonzarelli!

I have been having this whining noise from my HTC One M9 that I got under the Verizon damage insurance (probably refurbished) . Having read about the possibility that a screen replacement may produce this issue vis-a-vis something about the speaker cable, I thought maybe it wad a physical problem. So, kind of as a joke to myself I "Fonzi-ed" it with a sharp handslap to the back ... to my surprise, the noise is now gone! yay! Thank you Arthur Fonzarelli!
[Nexus 7 (2013) Q&A] leafypinecone:
Nevermind I figured it out.
[Galaxy Tab 2 Q&A, Help & Troubleshooting] ashkineeeeee:
Hi Developers .......do you can port tochwiz rom port from another device for p3100??:D:p
[General Topics] juned.khatri31:
Hello guys,

This is google boot logo for Micromax Canvas Nitro (a310 and a311 both) and 720x1280 mt65xx devices...

Logo preview:

Old Google logo (google_old_boot_logo.zip)

New Google logo(google_new_boot_logo.zip)

Guide:

Put google_xxx_boot_logo.zip into your sdcard

Reboot into recovery (i suggest twrp 2.8.6)

flash the file(google_xxx_boot_logo.zip)

Reboot

Enjoy :)

Download:
[General Topics] adhitya334:
Is it compatible with my infinix hot 2?
[General Topics] Oronno Chy:
Can't flash these on Snapdragon, Exynos, Kirin or Spreadtrum devices?