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Old July 9th, 2011, 01:42 AM   #1 (permalink)
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Default samsung galaxy s2 call quality issue

i have a call quality issue in my new SGS2. the other side person cannot ablw to hear my voice clearly ans also they are saying that thier was is echoed back to them when they speak. ichecked my mic using voice record. its pucca.i dont know whats the problem? any one have suggestions?

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Old July 9th, 2011, 02:22 PM   #2 (permalink)
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Default Call quality problem too

I just got my Galaxy S2 and call quality is muffled too. What could be the problem? I love the phone and I hope this can be addressed.. please help.
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Old July 9th, 2011, 02:25 PM   #3 (permalink)
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Are you using any type of case that is covering the mic?
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Old July 9th, 2011, 02:30 PM   #4 (permalink)
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can't say that I'm having this problem...mind you, Samsung is not known for having the best call quality, through my own experience Moto has that title...but it's definitely clear enough to understand... won't be the worst you've, and won't be the best...comparable to Apple....the case dilemma is a good suggestion...i've seen it before
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Old July 9th, 2011, 04:04 PM   #5 (permalink)
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I'm not using any case and I'm holding it properly (without covering the mouthpiece at the bottom). I tried the voice recorder and video recorder and same as @suresh_tpsk, the voice is really weak even at level 12 volume. I'm still hoping that this can be resolved without me bringing this to the service center.
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Old July 9th, 2011, 04:16 PM   #6 (permalink)
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network issues maybe?
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Old July 9th, 2011, 04:23 PM   #7 (permalink)
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For the call to be weak, yes, it could be a network issue. But for the audio/video recorder to be weak, it could be hardware. I tested this by recording my voice and playing it back - and came out to be very weak. I'm still hoping it's not.
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Old July 25th, 2011, 10:44 AM   #8 (permalink)
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Hi all,

Ive had this problem too. Seems to centre around use of ANY type of case. Im using the stock samsung one which doesnt impede the microphone, but it still seems to cause the problem.

Various online suggestions Ive found/tried as follows:

- remove case (worked for me although not satisfactory long term solution)

- turn off usb debugging (not tried this yet)

- reduce in call volume to 2/3 or 1/2 (seemed to work although not long term solution as far as Im concerned)

- turn off noise cancelling (havent tried this yet)

- await an update to sort it (hardly a great suggestion)

From reading other forums, none of these are fail safe and work for everyone. They might be worth trying though.

Im on o2 and as phones brand new Im swapping it and hoping that the next one i get mightn't suffer from the problem and not all seem to.
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Last edited by duffer01; July 26th, 2011 at 08:52 AM. Reason: got new handset today - so far, no echo even with case on. will update if theres any change.
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Old August 11th, 2011, 07:32 AM   #9 (permalink)
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Hi there,

I had the same problem also. But manage to solve it for good. Initial I was told that the casing could be the cause. After removal of the protective rubber casing it help a bit. There was echo also but it was solve by turning off/on the noise reduction button during a call. But even after doing that others still told me that they could barely hear my voice and it sound muffled or distant.

If using the voice recorder and your sound is weak. It due to the microphone not assembled properly. Something has block the sound intake hole. Took mine to the service center and they fixed it back for me within the day and everything is good now. Even with the case on. It still sound clear.

Mark T
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Old August 29th, 2011, 11:43 AM   #10 (permalink)
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I have a similar issue with the call being muffled on handset mode. When I switch to handsfree mode though it is crystal clear.

Can any of you who have this issue confirm this (on stock f/w too)?


Kernel version
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ficeto@beast #SuperCore_1.7

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Old November 3rd, 2011, 01:14 PM   #11 (permalink)
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Angry samasung voice quality problem.

My S2 is about 4months old. in the last two days people could not hear me during call on handset mode except i switch to speaker mode. i have performed factory reset but not helpful. can anyone help?
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Old November 10th, 2011, 05:36 AM   #12 (permalink)
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my 4 month old galaxy s2 has started with poor call quality, people not hearing me properly, took it to my local t-mobile shop on sat and they have sent it for repair,could be up to 2 weeks, will let you know if it's fixed when it comes back.
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Old November 11th, 2011, 09:42 AM   #13 (permalink)
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Hi, i am using a three monh old samsun galaxy s with 2.3 version. i am having the same problem of poor voice quality for tje receiver. i have had a software reset done at the samsung authorised centre yesterday but he problem persist...any solutions?
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Old December 19th, 2011, 10:15 AM   #14 (permalink)
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Angry

Guys,

Anyone had this sorted lately??

I have the same problem with Voice calls in handset mode, but speaker mode ok. The problem started a couple of months ago and last month have sent it back from it camefrom (Samsung Service Centre (UK) where it spent a month. Along with camera problem. - Camera has been fixed although with another known middle RED spot issue.

Basically the voice fault persists and when asked what has been done they said a software update!! Unbelievable it was already sent with the latest version so basically they did nothing to solve this because when I placed my first call the other person instantly told me the quality is very bad. So probably they didnt bother to test the handset well

I also tried disabling the Noice Reduction function with NO luck
I love this phone but I cannot use it for its purpose !!


Current version is 2.3.4
BaseBand I9100XXKI1
Kernel 2.6.35.7-I9100XWKI4
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Old December 22nd, 2011, 12:57 AM   #15 (permalink)
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Default Another issue

Others can here me very well but i am facing prob of low voice of person talkin to me.... pls help...
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Old December 27th, 2011, 07:49 PM   #16 (permalink)
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Default galaxy s2 handset call issue

hi Guys.
after getting a s2 and being constantly told by my friends who i called that they could hardly hear me, muffled voice etc, i decided to trawl the various android forums etc to try find solutions to this problem. i tried altering the handset volume via the service code method, removing the gel case, cutting the gel case around the microphone area disabling the noise reduction in call, nothing worked for me. i did see then a suggestion , and i cant remember where it was, to modify the holes for the case round the mike areas at the top and bottom of the phone. i decided the phone was no good as it was and if i knackered it up, it was throw away time, so please BE WARNED... THIS MAY DAMAGE THE PHONE ALTOGETHER... but it did work for me.
some have said to just clean out the very small holes with a needle, but i decided to use a very small hss drill bit, screwed by hand to make the hole slightly bigger, i only screwed the bit in a little at a time,it doesnt go in very far, a couple of mms at the most,and then clean out the debris very carefully with a pin, again without pushing the pin into the mike, just cleanin the case area.
people can hear me alot better now, but this is a mod that worked for me, and i have to say it requires a great deal of care or microphone damage will result and render the phone useless so try at your own risk. i was prepared to bin the phone if it didnt work, and only just let the drill bit a few mms into the case and then cleaned it out VERY CAREFULLY. Obviousley i did it with the phone powered down and PLEASE IF YOU TRY THIS DONT BLAME ME IF YOUR PHONE IS DAMAGED IRREPAIRABLY! BE CAREFUL. But it did work for me..
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Old January 10th, 2012, 04:58 AM   #17 (permalink)
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Angry Voice call Problem NOT solved

Just a small update..

Have sent my handset over to Samsung Service centre (Overseas), after weeks waiting for the device (Not samsung's fault) they released and sent it back through a retail company.

Upon switching it ON and made the first call the problem remains !!!

I was told that they performed a software update but of course probably they did nothing to ensure that the problem has been solved... Or it hasn't been diagnosed by their engineers. But for sure they should know by now that it is a design problem because after some months of use, users report this fault.

So I ask for possible refund since still under warranty...but according to their policy, a replacement will be given after it has been checked 3times...i.e. Sending the handset with the same fault 3times !!! So same might be for a refund... It's ridiculous..

It's a very Powerful phone and love it...but ..
POOR service...very poor service !! Will NOT buy a Samsung again...
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Old January 16th, 2012, 11:14 AM   #18 (permalink)
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Default digitized sounding voice for reciever

I didn't return the Galaxy because of this (bluetooth defiency was the reason) but people I called would say, "your new phone sounds bad dude!"

I'd say really? It supposed to be a premiere phone! They said the voice (mine) sounded digitized and would fade in and out sometime. I chalked this up to the noise reduction of the samsung and tried to shut it off. It didn't make a change that off or on. The did, however, sound great to me. But they all said my digitized voice became annoying.

I read they keep cutting the amount of bandwidth your voice can use lower and lower to get more people and data on the waves but people voice sounds worse than on old analog cells from 12 years ago. In Europe they are pushing better sound from the phones...here? we worry about how fast we surf and not how well it functions as an actual phone.

I'm back to the blackberry for now and everyone says it a AWESOME sounding voice. I want back to android if OS 4.0 fixes everything....

Am considering a Widows phone--heard 7.5 is ODDLY pretty impressive and easy to use. Blackberry does certain things PERFECT! Voice, texting, email, full image backup but you canNOT surf worth a darn on a BB. Need to move on but need an OS that covers the basics of a smart phone and oddly android moved on to mutlimedia before covering the basics of smart phone....

oh, I bought mine at bestbuy mobile division of the big electronics store and used it a full month before I sent it back. They have a 30 return policy on phones and TV,stereo etc. The cell phone companies only give you 2 weeks. I needed the 30 to find all the flaws...glad I did.
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Old March 1st, 2012, 08:40 AM   #19 (permalink)
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I dumped Samsung and replaced with a Motorola RAZR which has excellent outgoing voice quality - problem solved!
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Old March 1st, 2012, 09:15 AM   #20 (permalink)
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Red face Found a temporary solution in my case

After trying various methods including Mic assembly replacement just found out that a piece of rubber that is actually sitting on the mic was causing an obstruction, resulting in loss of voice quality.

I attached a photo of the actual part that I have removed and so far it has been restored.
This must be purely a design problem !

gd luck to all.
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Old March 1st, 2012, 10:08 AM   #21 (permalink)
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Quote:
Originally Posted by pilotair View Post
After trying various methods including Mic assembly replacement just found out that a piece of rubber that is actually sitting on the mic was causing an obstruction, resulting in loss of voice quality.

I attached a photo of the actual part that I have removed and so far it has been restored.
This must be purely a design problem !

gd luck to all.
I'll keep it in mind if I ever come across this problem - thanks!
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Old March 1st, 2012, 10:18 AM   #22 (permalink)
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this issue is well known to some phones. seems the internal mics/speakers aren't isolated as best they can be.

mine is fine, no ehoes.
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Old April 16th, 2012, 07:46 AM   #23 (permalink)
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Confused Thanks pilotair

Quote:
Originally Posted by pilotair View Post
After trying various methods including Mic assembly replacement just found out that a piece of rubber that is actually sitting on the mic was causing an obstruction, resulting in loss of voice quality.

I attached a photo of the actual part that I have removed and so far it has been restored.
This must be purely a design problem !

gd luck to all.

Can you please explain in a little detail how did you take this part out? Do you have to open the phone up or just removed the back cover and there it was!!
Many thanks.
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Old April 21st, 2012, 01:59 PM   #24 (permalink)
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Default Mic rubber removed --> problem solved for me

Pilotair you are a genius.
I have removed the rubber also and the voice quality improved dramatically.
How I did:
- remove the back cover
- remove the battery
- unscrew 6-7 little screws around the edge and the center of the phone
- Here is the tricky part: with a little flat screw driver you have to lift the edge of the phone little by little until it separate from the metallic frame.
- then you will see the rubber piece close to the mic: remove and reassemble by pressing back carefully the 2 pieces

Be careful of not damaging "too much" the frame.
I was ready to trash the phone, but now actually it works as a phone.
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Old April 24th, 2012, 04:16 AM   #25 (permalink)
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Quote:
Originally Posted by SGS2Fan View Post
Can you please explain in a little detail how did you take this part out? Do you have to open the phone up or just removed the back cover and there it was!!
Many thanks.
Apologies for not mentioning, yes you need to dismantle the phone as ROKLD mentioned but instead of using a flat screw driver, i recommend using a special hard flat plastic, normally sent with a new mobile screen replacement from ebay. (it's like a hard guitar pick). Since a screwdriver could damage the ribbon cables and you dont want that!

Further more I moved to XILA3 Official rom, Kernel: XILA2, Baseband: XWKI1. Where the previous version of GB also led to some call quality issues in my case. So far this one has been the best so far.


Good luck!
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Old May 10th, 2012, 03:33 AM   #26 (permalink)
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Default Now it wont turn on

I removed the rubber thing, but when I tried to turn on my phone, it wont get any longer than: Samung galaxy sII... logo thing.

My battery was on 15-20 % when i removed it, but now it wont recharge..

What could I have done wrong?!?!?
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Old May 20th, 2012, 11:13 AM   #27 (permalink)
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Quote:
Originally Posted by lbn84 View Post
I removed the rubber thing, but when I tried to turn on my phone, it wont get any longer than: Samung galaxy sII... logo thing.

My battery was on 15-20 % when i removed it, but now it wont recharge..

What could I have done wrong?!?!?
Exactly why you should not open your phone if you are not confident. Its just a wild guess but you may have pinched a cable that pilotair mentioned or something similar... Sorry...

Anyway, Upon close examination, I found that the rubber piece was fully blocking the mic hole on the bottom of the phone... The top one was nicely clear...

Since my earlier post, I have raised a query with the Samsung service centre and sent my phone in for repair. I have included a print out of pilotair's post and picture to reduce chances of disappointment of receiving the phone back without the required repair.

Will post update when I receive it back...
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Old May 24th, 2012, 02:00 AM   #28 (permalink)
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^^ I'm looking forward to that
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Old May 26th, 2012, 07:57 PM   #29 (permalink)
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Update: received my phone back (in a weeks time from sending it)... can now clearly see a deep hole in the microphone slot (unlike rubber thing blocking it before)... ppl on the other side can hear me clearly... problem solved...

Only downside of sending it to Samsung repair centre was the phone came back wiped clean... lost all my apps which I reinstalled quickly, but sadly lost all progress made on games I play.. should have thought about that in advance...

Anyone facing the problem, I recommend to send it to Samsung repair centre if you are within warranty (remember, Samsung provide 2 years warranty) as this is a known issue with many phones...

thanks pilotair and rokld...
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Old May 26th, 2012, 09:33 PM   #30 (permalink)
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pilotair do i have to remove to rubber piece and discard it? thanks
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Old June 3rd, 2012, 11:51 AM   #31 (permalink)
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I have a really weird issue, you could say its called quality related.

I am on 02 UK and I tend to use my phone during the week to phone my partner when travelling to work and I always find on my drive to work that the phone cuts out at exactly the same location all the time!

Is this an issue with the phone? Is there anything I can do to resolve this, would a newer kernel help? I have custom rommed my phone and it is running resurrection remix 2.0. AFAIK this used to happen when I was on a stock rom.

Any app that will help me identify root cause of the issue?

Thanks
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Old June 3rd, 2012, 09:47 PM   #32 (permalink)
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Sounds more like signal problem at that particular location. Now if your line gets cut off at a certain time, say after 2 minutes of call, then maybe it could be something else.
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Old June 14th, 2012, 08:32 AM   #33 (permalink)
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Quote:
Originally Posted by coolioguy88 View Post
pilotair do i have to remove to rubber piece and discard it? thanks
Yes, you may remove it no harm, but keep it in a safe place especially if it's still under warranty. You dont want to send it to Samsung for any other reason with that missing!
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Old August 13th, 2012, 06:07 PM   #34 (permalink)
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Quote:
Originally Posted by markt_10350 View Post
Hi there,

I had the same problem also. But manage to solve it for good. Initial I was told that the casing could be the cause. After removal of the protective rubber casing it help a bit. There was echo also but it was solve by turning off/on the noise reduction button during a call. But even after doing that others still told me that they could barely hear my voice and it sound muffled or distant.

If using the voice recorder and your sound is weak. It due to the microphone not assembled properly. Something has block the sound intake hole. Took mine to the service center and they fixed it back for me within the day and everything is good now. Even with the case on. It still sound clear.

Mark T
Hi Mark can you tell me where you send it too? do you have the address or phone number?
because i'm having the same issue also. my friend keep saying that i sound muffle and far away. don't know what the issue is. and tmobile customer service is being a dick won't try to fix the solution LOL.

please if you can. let me know.

thanks =)

Judy
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Old December 3rd, 2012, 04:36 PM   #35 (permalink)
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i have my phone opened right now but dont see where this rubber peice is located. i have a tmobile S2 and my voice sounds muffled to others when i speak with them.

pls help, thx.
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Old January 13th, 2013, 10:17 AM   #36 (permalink)
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Hi

I had a problem with my mic that started a few days ago - people could not hear me on the other side. It first started with them saying I was very soft, then they couldn't hear me at all. I thought I had dropped it one too many times and would need to send it in for the mic to be replaced.

I searched the forums and found that I should also test with the Voice Recorder, confirming that it was hardware. I was planning on doing a factory reset but the thought of backing up my phone and reinstalling made me nauseous, so I thought going online first might give me some answers. I tested with Voice Recorder, which showed it was the mic. I then read it might be the phone cover. Removing it didn't work. So...

I used the back of a sewing needle (so I didn't do too much damage), and picked out any debris that may be in the mic opening. I didn't see anything on the end of the needle. But I used the Voice Recorder again, and it works perfectly now! I also picked out the top mic and the ear phone jack just for good measure.

I know this is a bit of a risk, but glad I tried this before sending it into repairs for a few weeks. I can't even think of using my old Blackberry for one day without getting depressed.

Hope this helps someone!
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