yashsingh1/xdaforums huggingface dataset:
[Galaxy S II General] sxi200:
Well, I have voicemail off but as mentioned above I did call my phone from a friends phone and sound was excellent. Mind you, the silicon case was not on it. With it on it still causes an echo of the other persons voice on their phone.

As for the fix, I will try and post some pics tomorrow. It is rather late here now. But basically I googled 'replace galaxy s2 screen' so I could see how to open it up.

From there I found a thread on xda with pics. Pretty easy actually. Just remove the 7 screws under the battery door using a small Phillips head screwdriver. After that, I basically wedged my fingernail (thumbnail actually) between the frame starting from the top corner (headphone jack side) and slid it down to the bottom. Did require a bit of pressure but bit by bit it started popping open. As far as I can see doing that caused no damage or scratches.

After I popped it all off, I removed the back and the microphone was right there. It has a white rubber housing over it. You'll know it because of where the microphone opening is on the bottom of the phone.

I then just pulled the rubber off the microphone. The microphone itself seems pretty tough so little chance of damaging it. While the back was off I also decided to wedge a small screwdriver into the bottom microphone hole. I probably doubled it in size. **** it was small.

Not sure if this is for everyone, but if anyone does try this just remember that the power and volume buttons may fall of the phone (back part) but they are easy to put back on. They have a groove that they fit into.

AND, make sure you take out the battery (obviously), the sim and external memory card. You will not be able to pull it apart with the sim still in it.
[Galaxy S II General] Coedy:
Thanks a lot! If it's just the section under the back cover I will have a go tonight! I also bought mine second hand so no warranty either.

I also think the hole is too small.
[Galaxy S II General] sxi200:
Not sure what you mean by 'just the section under the back cover', so just to make sure you get what I mean, I'll explain it.

The section that needs to come off is the entire back. It is where the silver bezel meets the black plastic back around the whole phone.

Even better, here's the link to the thread I followed to pull the back off.

You only need to follow it to step 9.

Hope it helps.

http://xdaforums.com/showthread.php?t=1253969

Edit: In the picture at step 9, you can see the front (right side) and back (left side) parts seperated. On the front part at the bottom left you can see the white rubber microphone cover. That is what you'll be looking for.
[Galaxy S II General] Coedy:
Yep, thats what i meant sorry.

I just meant I expected id have to unclipped circuit boards etc etc etc. But if its only the 6 or 7 screws for the back ill have a go! :D
[Galaxy S II General] sxi200:
Cool! Not really hard to be honest but take your time with it.

After I did it once I pulled it apart about 5 or 6 times to test and enlarge the microphone hole.

If you do decide to remove the rubber just lift it slightly from the groove holding it in place and pull it downwards toward the bottom of the phone. You might also want to push the microphone down a little after that.

Hopefully you checked the link with pictures I added to see exactly what you need to do.

Let me know how you go.

Good luck!

Edit: Another thing to keep in mind. You may need to remove the bottom circuit board to put the rubber cover back on. Its a bit hard I think to do with it still in place due to the wall around the microphone. I wanted to put it back on to test the difference but because of that I didn't bother. It sounded good without it anyway and with the enlarged hole.
[Galaxy S II General] Coedy:
Ah ok cool cool.

Just so I know it is the white square/box thing on the bottom left (right at the bottom near the shell) in this picture?

How does it come off? just carefully push it down towards the bottom of the phone away from the circuit board?
[Galaxy S II General] sxi200:
Yep! It's the white rubber to the left of the charging/USB port. In the picture it looks like it has some blue/green mark on it.

And yes to remove it, but lift it up slightly first then pull it down.
[Galaxy S II General] holyguyz:
That's good. At least you solved the problem. After another 1-2 days of trying, you should be able to know it been fixed. Well done!

Cheers! :)
[Galaxy S II General] sxi200:
Yeah....made a few calls today and didn't have to repeat myself. It seemed like the microphone rubber was covering that tiny hole at the bottom. Being so small there's not really much margin for error, so I just took it off.
[Galaxy S II General] henny.van.beers:
Okay, I did it myself too.

Not hard at all !!!

Now I'll have to wait and see if it really has the expected effect - I'll keep you posted ...
[Galaxy S II General] marica.marius:
The voice recorder

Dose this hack increase the recording sensitivity of the voice recorder?

If not, how can I increase it?

Thanks,

Marica!
[Galaxy S II General] donmarkon:
Can anyone who removed ruber post a picture how it looks now ? . Also confirmation that it actualy works ?
[Galaxy S II General] Coedy:
I did it, looks the same but without the white bit of rubber...

It seems to work for me but now I get echoes... So will probably put it back on. Think the main difference was making the hole bigger!
[Galaxy S II General] donmarkon:
Yeah i was thinking same thing . For me people hear me all the time just sometimes they say im become quiet for second then it come back . Its rare but you know ...

Also i was cheking mic hole and i see that its half visible from ruber so i guess that moving it would fix this .

Also is there some app to test microphone or some test code ?
[Galaxy S II General] Coedy:
Easiest way to test is phone your voice mail a couple of times and leave a message.

It seems to sound fine for me in voice recorder butvin calls is when it plays up.
[Galaxy S II General] Burgscheinkerkdeiktraast:
I've been waiting for this, thanks.
[Galaxy S II General] anrichp:
interesting

thanks for this was wondering if this was possible
[Galaxy S II General] speedys4:
after cut off ruber is problem with bad voice quality still... not better.

I think, that is problem in software, because in phone record utility is sound normal, and clear, if you can, you may test it, and after that play recorded audio and everything is OK.

problem will be in some unofficial softwares I Think :((((( or bad modem, or signal in phone.
[Galaxy S II General] Coedy:
Right then guys. Ive had to put mine back on. getting terrible echo problems without it.

BUT!

I doubled the size of the hole and also enlarged the hole on the rubber piece and everyone is amazed at how loud and clear I am even when I have low signal.

The problem is clearly not software related. its just design fault.
[Galaxy S II General] DSF:
Can you please post a photo with the new mic hole?

Thanks
[Galaxy S II General] icecubix2:
Coedy, have you details of how to do this? To make the hole on the rubber piece, do I must open the phone?

Regards

EDIT: ok, it's not necessari. I've found this thread:

http://xdaforums.com/showthread.php?t=1363458

I will try it...

EDIT2: IT WORKS (tested with 4 calls)

Regards
[Galaxy S II General] roitxu:
I have this problem, but before of change my rom version I didn't have this problem; so i don't think that it's a hardware problem, it's only a software problem.

I try to install new roms (oficial and unofficial), changing the volume on service mode, changing the phone.apk (I success disable noise reduction by default but the problem didn't solve), I call to SAT and the said me thaht they don't have any solution nowadays for this problem...

Someone know how to fix this problem???

thanks to everybody and sorry for my poor english
[Galaxy S II General] Nyssa1104:
Leave Rubber Hood On!

Ther rubber hood removed works for some but I've done this mod on ten or so SGS2 BUT left the rubber hood on and only cut off the front part (so if your looking at the said phone photo in this thread) up to where it sits behind the the housing (this way it opens up a bigger hole in rubber hood). This way there no need I found to open up the mic hole in the base of the handset housing.;)
[Galaxy S II General] roitxu:
GREATTT!!

Finally I've got my micro problem solved!

First I ned install rom I9100XXKH3 for fix an error of sdcard crash with bootloader.

Then I reinstall the original rom of my company and finally the microphone sound it's good as the first day:D

Only one problem now... I've installed 2.3.3, but the problem is solved!
[Galaxy S II General] htc9420:
I can't imagine what was in the wise-ass mind of Sammy engineer who designed a resonating chamber out a piece of rubber...acid trip, I bet.

Getting bored of the constant irony of whoever I spoke to over the SGS2's dreadful mic, I decided to fiddle a bit with the device:p

...of course, when I opened it, I discovered the rubber hole was squeezed as hard as the Chinese worker's eyes when he's meditating alone in the spiritualism room.:D

Took a blade and cut the lip, ONLY THE LIP. Huge diff.

I hope the pictures help
[Galaxy S II General] Nyssa1104:
Yeah did a while back and no need to make the hole in case housing bigger.
[Galaxy S II General] sxi200:
Just a follow up on the fix I did - removing the rubber mic housing and enlarging the mic hole.

Its been about 3 weeks now and haven't had any complaints. To be honest I haven't had anyone mention the echo as well since, even though I use a rubber/silicon case.

Very sure these problems are completely gone for me. :)
[Galaxy S II General] pApit0o0o0:
So if i cut the same way the rubber the echo issue will be gone ?
[Galaxy S II General] speedys4:
It is easy APK or ROM, wher is microphone OK? I have fifth SGS2 and everyone has problem with microphone volume (after using custom rom)
[Galaxy S II General] fraser82:
hi, someone else has tried this solution? opinions?

thanks
[Galaxy S II General] Dauntless:
(This post is mainly for people with not a lot of DIY knowledge)

I also had a problem with a muffled sound and I tried everything (Roms, modems, samsung keycode, ...) and nothing worked. I was going to send it in for repair, but since I'm waiting for the USB jig, I thought I'd give it a try myself in stead of waiting x weeks for my phone to be fixed.

This is an image of my microphone before the fix. (Sorry for the terrible quality, I only had my transformer to take pictures).

As you can (kind of) see, my microphone was looking entirely white/grey because of the rubber. So if you see this on your phone, flashing mods & kernels will hardly help because it's a hardware problem.

I opened my phone with a ph00 screwdriver and my library card. Be sure to open the phone from the top right (near the 3.5mm jack). You can open it fairly easy from there. This video might also help: http://www.youtube.com/watch?v=QKztg1ra4-0&feature=player_embedded . (-edit- after opening it a second time, I cracked the back cover a tiny bit (the black, plastic ring around the audio jack), so go around with your card first before applying pressure. That's how I did it my first time and how I should've done it my second time. The crack is not noticeable luckily :))

My little rubber was also deformed (ie, it was a line, not a circle) so i just molded it a little bit with my fingers & screwdriver until it looked nice and round. I did not cut anything off! (Mostly because I'm still under warranty).

Now another important step is closing the phone back up. If you just press the two parts against each other, the rubber will be squashed and you're back at square 0. Be sure to put the bottom of the phone together first and see that the rubber fits before closing up the rest.

After that, my microphone looked like this:

You can still see a little bit of the rubber covering the microphone so I might try this again until it fits perfectly, but the person I called said he could hear me a lot better now (I've been calling him constantly to try out every new fix, so he can definitely tell the difference).
[Galaxy S II General] mpointer:
Once the majority of people said to me they didn't hear me well, I realized that something was wrong with the microphone.

In normal conversation bottom microphone is used, if you press 'Speaker' then a upper microphone is used.

In the 'Speaker' mode all heard me well, even if I am 1m away of mobile!

But in normal conversation (Headset), only if my mouth was 5mm from the bottom microphone, conversation was clear.

The firmware is the 2.3.4 - XWKI4.

There is no menu option "Turn off the noice reduction" in voice call.

I restarted the phone a few times and nothing.

So absolutely crazy about this, i tried this option from the forum:

First In the phone dialer type in * # * # 197328640 # * # *

Second A menu should now be shown. In the menu, press [5] AUDIO

Third Then ... [1] NB (VOICE CALL)

4th Then ... [1] HANDSET

5th Then ... [1] VOLUME

6th Then ... [1] SRC SPEECH RX Volume

7th Then ... [5] 5_lvl: 88 (note that you might have another value than 88 on your handset. Write down this value in case you want to revert to it later)

8th The window is now shown that should have a line saying "Input?".

To input a new value press the Menu button, then "Key Input". Write 110 as the new value and press the "OK".

You have now adjusted the microphone volume when noise reduction is disabled, and it is time to do the same when noise reduction is turned on.

Press the Menu button, and then "Back". Do this four times in total, until you get back to the menu that the text "NB (Voice Call)" in the first row.

Now, press [7] HANDSET (2MIC) and repeat steps 4 to 8 listed above.

Super, the problems are gone, and I thought that this is the solution!

(Besides, the procedure must be repeated each time after reebot).

But if move the phone little far of me and then close, began to appear echo!

My conclusion was that the microphone was hardware defective, and that this was just software fix which try to reinforce bad microphone.

Since the phone is under warranty I didn't want to expand the hole and remove the rubber because of that i will loose warranty.

I wiped all the data and made a 'Factory data reset': Settings -> Privacy -> Factory data reset

Before I take my mobile to the service, do a few calls, and suddenly improve??

All problems are gone, microphone functionality is normal!

It's been before 10 days and of course: I'm not wearing the cell phone to service!

Shocked, I conclude that this was a software problem.

Since then I didn't change anything, SRC RC SPPECH Volume remained at default (88) and all of a sudden I hear great.

I've heard that turnig Flight mode on - off, can also help in some cases, but i didn't try.

Please note that I only had problems with the standard (bottom microphone) upper microphone was working perfectly, does not necessarily mean that the 'Factory data reset' will help you.

But it helped me 100%, the microphone works properly and I'm still in amazement. :-)
[Galaxy S II General] mpointer:
New info

The problems have returned.

Also there was a new problem with echo when putting a protective case.

I concluded that these two problems are related.

I took the phone to service and now finally everything is OK!

I have been told that they replaced the microphone.
[Galaxy S II General] touromelga:
problem solved

Hello to all ...

I had the same problem recently the low volume of the microphone, when I received a phone that had been on assistance ...

I looked for solutions such as presented here, without success, or at least temporary, until I saw this post from HTC9420, where he opened the SGS2 and modified rubber microphone, I tried but the result was significant, so I eventually detect other situation the rubber plug in the microphone, had a small opening into the microphone when docked, so I decided to open over the hole and test again, and the result was sgs2 as new ...

summarizing the sgs suffering from lack of volume on the microphone, leads me to believe that is derived from a defect in the construction of rubber that fits into the microphone, the software and not give up now Samsung has not given any opinion on this subject, because the original values ​​of the microphone are within normal parameters, only the rubber is said to strangle the mic, but also can not be totally removed the attenuations derived ...

leave some images of the rubber. in red show what the modified rubber and those who want to try to force and then leave feedback ...

images (sorry they are not the best, but you can see the point of what was done) ..

good luck ...

change h++p to http...

h++p://oi39.tinypic.com/343izk1.jpg

h++p://oi43.tinypic.com/2r4tms2.jpg

h++p://oi39.tinypic.com/wjszyv.jpg

h++p://oi44.tinypic.com/2da17c3.jpg
[Galaxy S II General] tofic:
Same problem here. Thank you a lot for the fix, it's now OK:)
[Galaxy S II General] golfakis:
Guys thank you so much u r all insane in this forum i love you all !!!!! it worked and its pretty easier than it looks..........

edit : not for long though
[Galaxy S II General] golfakis:
just bought a spare part from ebay and waiting it to replace the old one
[Galaxy S II General] cloneme:
Sorted out my low volume problem after reading this thread on the subject. I opened the phone and there is rubber surround around the main microphone and by cutting around the hole and opening it up (as it was partly closed off) and now people can hear me clearly. :D
[Galaxy S II General] ape_12:
Hi,

I know that it is the S2 forum but I have a similar problem with my Samsung Galaxy Nexus.

After an update from 4.0.4 to 4.1.1 my microphone isn't working any more.

Without the case the microphone's volume is still very bad, so it isn't caused by the rubber.

Do you know if there is a dialer code for the GNEX or a other chance to increase the microphone's volume?

Greetings,

ape_12
[Galaxy S II General] khaytsus:
My wifes SGSII was having GPS problems so I took it apart, cleaned up and tweaked the contacts carefully, and re-assembled. GPS worked great... Microphone not so much. After finding this thread and some eyeballing the situation, I took out the grey rubber box and the portion that faces the microphone I clipped away some of the box so rather than it being about 1/3rd open to the mic it's fully open. And her microphone is working great.

It was fine before, so I think the microphone element moved or something, but this worked great for her phone. I didn't otherwise modify the case or anything, just the little thin flap on the rubber box that was otherwise obscuring the microphone.

Why it was designed this way.... Maybe the microphone was too sensitive so the flap was to attenuate, not sure, but seems to be okay now.

I tried without the box but it sounded weird, I think it sounds okay now.. Still sounds a little funny, but it's okay for now until we replace her phone.
[Galaxy S II General] Liwzy:
.....

How do i boost bluetooth headset mic on samsung gts5300 , i dont see option audio in the menu as described above....
[Galaxy S II General] milleralexis768:
this is a good fix. I will try that.
[Galaxy S II General] mabiason1992:
solved

found out the solution! thanks! :good:

works good. haha
[Galaxy S II General] MartinLGore:
This one works

Microphone Amplifier​

Microphone Amplifier - Apps on Google Play

Discover the small voice around you and high quality wav format recording.

play.google.com
[Vibrant Q&A, Help & Troubleshooting] Demetris:
Hi,

As i am living in europe and i have a T-mobile bands modem, plus the current modems around (tried all) dont work as expected, i was searching for a new modem to flash that will solve some issues with current modems around for vibrant.

i happened to find out from wikipedia that Galaxy S Fascinate 3G+ (SGH-T959D) is a similar phone as the Vibrant one.

So i went for a search in the Fascinate forums to find out that the telus JL3 modem has the same characteristics with our current vibrant modems.

I downloaded it and found out is exactly the same size for our flashable modem partition layout that is 12,0 MB (12.582.912 bytes)

So am thinking about flashing that modem but first i need a cm 7.1 flashable zip with cwm 4.

Any developer that are willing to test please or have more experience than me, to try and verify my findings or even someone to tell me if i flash this and dont work will i be able to get to download mode to fix my phone.

Are the primary and secondary bootloaders affected if i flash this? or is ok to try out.

Thanks in advance

P.s

Here is the link

http://xdaforums.com/showthread.php?t=869628

Here is the download link for the modem:

http://xdaforums.com/attachment.php?attachmentid=461926&d=1292107611

Ahem edit:

i just found out that all Samsung S modems are the same size :) , sorry for not doing a better search.

I found out this site that has all the Samsung Galaxy S modems cwm flashable

http://codeworkx.de/download/cyanogenmod/

So i only need you guidance as to flash or not. And to be clear, i dont mind to bootloop or anything like that i just mind not be able to get into download mode and that is because am in Europe no warranty for me.

Thanks again
[Vibrant Q&A, Help & Troubleshooting] SuperJMN:
The site is down :(
[Atrix 4G Android Development] eval-:
Looks very cool! Will check it out.

BTW your Early USB Enum hack has saved me so many times, I cannot thank you enough! I wrap all my hackery in if [ $(getprop ro.usb_mode) != "debug ] ; then

Now! Keep up the good work =)
[Atrix 4G Android Development] airbillion:
Nfhimself,

This looks really great! Three quick questions though. What do you need for this to work with an att atrix? Will this tool root a fresh sbf install? How should sideloading be enabled first to install?

Thanks
[Atrix 4G Android Development] NFHimself:
eval-, glad to be of service. :)

airbillion, I know little about the side loading issues with att, bit of a chicken and egg, nothing in an apk will enable it to be loaded. I thought I read side loading was possible now with ATT. Other than that, there is nothing intentionally Bell specific other than the deodex stuff I mentioned.

Cheers!
[Atrix 4G Android Development] vinay427:
Will the rest of the features (other than odex/deodex) work on an AT&T Atrix? I was a bit confused about this and wanted to clarify.
[Atrix 4G Android Development] NFHimself:
Yes, it should, no reason why not. :)

Cheers!
[Atrix 4G Android Development] armonwilson888:
This is awesome thank you! :-)
[Atrix 4G Android Development] airbillion:
Nfhimself,

Thanks for the reply. Att still needs to enable sideloading for atrix, but that can be done manually. Im still unsure what you need so we can deodex with your program though.
[Atrix 4G Android Development] n1ckr0th:
NFHimself, what exactly does Early USB Enumeration do?
[Atrix 4G Android Development] NFHimself:
Don't need anything, just haven't made a deodexed archive available,yet.

Cheers!
[Atrix 4G Android Development] NFHimself:
It's for using adb in early usb enumeration mode and for running scripts prior to android booting. Without it, android continues to boot and if there are any issues it auto reboots. That's the gist of it.

Cheers!
[Atrix 4G Android Development] airbillion:
Thanks nfhimself! Any plans on making one?;)
[Atrix 4G Android Development] marko!:
Really annoyed that it won't download from my phone.... anyone able to?

sent from my rooted,

and chillin, canadian Motorola Atrix

Edit: nevermind it worked Haha
[Atrix 4G Android Development] NFHimself:
Cool, also downloads fine from xda app.

Cheers!
[Atrix 4G Android Development] NFHimself:
Sure, is the latest 1.83 these days? Or rather, is that what everyone is using on att?

Basically, I just be deodexing the files, applying some tweaks and uploading to dropbox. I would have to look up what is going on with webtop on att, to match the ones already done up.
[Atrix 4G Android Development] airbillion:
Thats great if you can do this for the att users! Yes 1.83 is the most recent and most used on att. Im not too sure about any differences on the att webtop compared to bell or the others, but if you need anything just ask.

Thanks