Database Users

loose XDA Exec screen?

Hi, I’ve just changed my mobile to an XDA Exec, had it for about a week and just noticed today the screen seems a little lose where the twisting joint is. I’ll try and explain this: With the XDA sitting on the desk and the screen open (at 90deg to the keyboard), if you put your fingers on the top of the screen assembly, it will rock noticeable from side to side (left/right), which is then more noticeable when it’s closed up. It almost feels like there is enough play in it to cause some damage if not careful.
What I’m interested to find out is, is this normal? Is it normal ware (given it’s a week or so old) or is this something that isn’t right and needs some attention?
Also is it possible to tighten something up to stop this and are there any disassembly guides available for the screen assembly?
Cheers
Matt

same here!
same problem with my xda exec, it has a slight wiggle but then it really bothers me. is there a way to tighten the joint or a service center that can do the tightening? im from toronto. thanks!

Hi, At least I'm not the only one, driving me mad too every time I pick it up....
Do you remember if it did this when you got it or has it started over time? I'm wondering if I can get it repaired under the warrantee or if this is just a "Feature" of the hardware.......
Alternatively I'm interested in finding out how to take the screen section apart. Has anyone got any pictures of the innards? And if that is actually worth doing, e.g. is there a nut that's come loose and needs tighten?
Cheers
Matt

The common problem I have found is that the screw on the hinge by the screen pivot comes loose. Look at it with the screen 90 degrees out, It's obvious. It has happened on my last 3 Execs. The screens seem to be easy to damage.
Try removing the screw, adding a little super glue or whatever your local glue is and tightening it quickly. Works for me

i little wobble is normal considering you have a relatively huge screen on that end of a lttle metal base plate with one screw holding it on.
if your screw is tight, but you can wiggle the screen back and forth your base plate may be bent.
this happened on my UNI after a dropped it. the plate was noticabley bent convex. when this happens the base plate isn't supported by the plastic of the case. i removed the single metel screw (described above) and detached the screen from the rest of the case. while it was out i bent the base plate into a concave shape. once it was tighted back down the screen was back to it's slightly wobbly self again!
download the service manual and study the pictures.

broken headphone jack

PLEASE HELP
My wife has this phone..(so do i) well anyway she found a way to do the impossible. she broke her headphone jack in the headphone hole. The tip broke and the bottom is logged in the hole. I tried to get some super glue to perhaps stick it together and pull it out..this did not work. I took the back cover off to get more access but still cant get it..any one have any suggestions...now i also have a lot of superglue residue in the hole. is there any way to open this thing and get the rest of the plug out? BTW it is not the N1 headphone but another brand. PLEASE HELP

Is the tip hollow? If so you could try taking a small screw into it in order to have something to pull it out with.
aj

how deep is the remaining part?

the tip is not hollow and the shaft part is broke off under the plastic part.

ok this is not a joke.....
BUT if you are feeling "ballsy"
take your average sewing needle and heat it up with a lighter stove w/e unitll it is red-hot. USE A PLIERS TO HOLD IT
then plunge it into the center of the remenants and let it cool
only try this if there is some plastic left in there.

lol...I will try that...hope it works, how will the needle grip the broken part of the headphone. would it just pull right out.. I need something to grab or grip the broken part....I dont want to break my phone.

Well the poster with the needle idea has the goal of having the hot needle cool with melted plastic from piece that is broke off. Once cool, the hope is that the plastic will adhere to the needle (now completely cool) and allow you to pull it free.
I have some reservations about this idea. How did she break the tip off. Was it a sideways motion? Or did you try to correctly remove the plug but for some reason it was stuck and the tip was left lodged in?
If it was the later of those, the needle idea will do nothing. It may work is it happened the first way I described.
An alternative to the needle idea and potentially more damaging is to take a paper clip, place a small bead of solder on the tip. Avoid touching any of the phones internals with the solder and press that paper clip up against the broken tip. It should not take long to cool. Once it does, it may give the the force you need to pull it free.
Please report back when you have sorted this out. We are all curious.

maybe a little dab of jbweld or gorilla glue, if worst comes to worse of course. It would be much easier if it were hollow.

What about a really strong magnet?

gIMpSTa said:
What about a really strong magnet?
Click to expand...
Click to collapse
You want to stick a high power magnet next to a 530 dollar phone? Are you nuts?!?

The way to take out a broken screw is to drill a small whole in the center and try to wedge the smallest Allen wrench into it.
Maybe that might give you some sort of idea on how to dislodge that earpiece. I know it's not the same thing...but its N idea.

McFroger3 said:
You want to stick a high power magnet next to a 530 dollar phone? Are you nuts?!?
Click to expand...
Click to collapse
And what exactly do you think would happen?
I'm not talking SUPER magnet, but honestly, what component of the phone do you think is in anyway affected by a magnet?
There is a myth that magnets destroy electronics. Sure you can use a magnet to wipe a hard drive (not flash storage, talking magnetic disk) but it takes a SUPER strong magnet with a concentrated beam to do even that.

gIMpSTa said:
And what exactly do you think would happen?
I'm not talking SUPER magnet, but honestly, what component of the phone do you think is in anyway affected by a magnet?
There is a myth that magnets destroy electronics. Sure you can use a magnet to wipe a hard drive (not flash storage, talking magnetic disk) but it takes a SUPER strong magnet with a concentrated beam to do even that.
Click to expand...
Click to collapse
Magnets will not do anything, Blackberry uses one to turn the screen on/off
did you get it out????

Not yet still trying. .already voided the warrenty

[GUIDE] Xperia Arc Disassembly

EDIT
"meyourchum" has provded a link to get offical disassembly instruction with lot more information.
Check it for yourself
Hello folks,
I had a chance to work on my friends arc who bought a Rogers version and dropped it. He had it totally mess on the case and needed the full housing replacement.
I hope that doesn't happen to anyone. I didn't take any photos but I am trying to explain everything as it was to help anyone with this.
General Note:
- Anywhere you got stuck, watch some X10 Disassembly video
- Be very gentle to your phone in this process
- Besides all the screws the rest of the phone is put together with glue(Sticky Back) and snap(plastic for main board)
- Using this information on your own risk as I don't take any responsibility if anything happens to your phone.
Instruction
1) Remove the back battery cover. Thats the easiest part
2) Need star shaped screw driver[Trox](I bought the set for $5) there are 4 screws like that and two which opens with phillips screwdriver(tiny) This is what I bought
All the above we all have seen them
3) After removing the 6 screws remove the front fascia of the phone with a guitar picks, something skinny but sturdy*
* I recommend not using anything other than rubber or plastic in the whole process.
4) Main board is snapped in with plastic to the body which easily can be opened.
5) Little board on the bottom is glued(sticky back @ top) which you can remove with pulling little hard but make sure you don't break it.
6) Majority of the wire you see connected to mainboard can be discounted (snap in wires)
7) Removing the screen: from outside of the phone (like you are looking directly to screen like you normally do) you need to put something under neat and raise up the screen. This part has glue as well and its hard to lift but I did it and it should be possible.
8) if you are doing a full housing replacement, then there are stuff here and there that you need to remove and re-use it on the new housing(Like 3.5 mm jack, HDMI lid, etc.)
Good Luck and let me know if you have any questions.

1st time... ehm.. taking the Arc apart, that is!
Helluw there
Just read your post, and thought I wanted to share with you, that I might be opening one of these slick little things. My friend broke his display, and the ISP is talking about some 'off the scale' repair prizes.
...So, he asked me to do the job
Told him I didn't have any experience on the disassembling of this phonetype, but he trusts me it seems
I might return with some questions in case of problems, is that OK with you Nimche?
Greetingz

Hope u have the courage to make a video next time
Sent from my Arc using XDA premium App

xelion said:
Helluw there
Just read your post, and thought I wanted to share with you, that I might be opening one of these slick little things. My friend broke his display, and the ISP is talking about some 'off the scale' repair prizes.
...So, he asked me to do the job
Told him I didn't have any experience on the disassembling of this phonetype, but he trusts me it seems
I might return with some questions in case of problems, is that OK with you Nimche?
Greetingz
Click to expand...
Click to collapse
Sure, no problem. I would be more than happy to answer. Lets see just some general stuff...
Note: anywhere you got stuck, watch some X10 Disassembly video
Note: be very gentle to your phone in this process
- you remove the back battery cover. Thats the easiest part
- you need that star shaped screw driver(I bought the set for $5) there are 4 screws like that and two which opens with phillips screwdriver(tiny)
All the above we all have seen them
after removing the 6 screws
note: besides all the screws the rest of the phone is put together with glue and snap(plastic for main board)
- remove the front fascia of the phone with a guitar picks, something skinny but sturdy*
* I recommend not using anything other than rubber or plastic in the whole process.
- main board is snapped in with plastic to the body which easily can be opened. I change full housing and not sure if you have to remove the hard key button from the bottom end of the phone too or not but that little board on the bottom is glue which you can remove with pulling little hard but make sure you don't break it.
- All the wire you see connected to mainboard can be discounted (snap in wires)
- There is a big one which goes to the screen you have to dis-attach that before removing the screen
- Removing the screen: from outside of the phone (like you are looking directly to screen like you normally do) you need to put something under neat and raise up the screen. This part has glue as well and its hard to lift but I did it and it should be possible.
Good Luck and let me know if you have any questions.

Can you answer this??? It get's hot here (and also in the same spot on the front.. so what's inside at this point??

CPU is right behind the second cover. I wish I could take some photos.

Nimche said:
CPU is right behind the second cover. I wish I could take some photos.
Click to expand...
Click to collapse
Thanks for the clarification. I was also suspecting since this area gets damn hot when playing games and even at charging (sometimes).
So seems like they move the CPU from behind the battery in X10 to near to the camera in Arc .

Can I change only the front faceplate around the screen without removing the mainboard? How easy would that be? I want to change mine to Misty Silver as Rogers only carry the Midnight Blue.
Also, for glued parts, do I have to glue them back on the new housing?

hellocng said:
Can I change only the front faceplate around the screen without removing the mainboard? How easy would that be? I want to change mine to Misty Silver as Rogers only carry the Midnight Blue.
Also, for glued parts, do I have to glue them back on the new housing?
Click to expand...
Click to collapse
Glue part, they are more sticky than glued. You just simply stick it back where it was.
Where is the silver face you found?
This is retarded from them...
Digitizer and screen(one part) are sticked to the front face. In order to for your to change the faceplate only(front) you may have to go through the whole process because the wires from digitizer are going through a big hole to the main board. You don't want to mess around with $700 or $800.
Inside, everything is small. really small. I thought I totally screwed up the whole thing. Technology has gone forward alot since I was a kid putting radio together.
Good Luck

prathaban said:
Thanks for the clarification. I was also suspecting since this area gets damn hot when playing games and even at charging (sometimes).
So seems like they move the CPU from behind the battery in X10 to near to the camera in Arc .
Click to expand...
Click to collapse
Yes, there are two board one above battery and one below batter @ bottom of the phone
On top is the main board
on bottom is the board for hard keys.
Nicely put together but they could have done a better job there....

Are there three parts to the housing? I assume there is the front plate, middle housing with the chrome, and the battery cover. The mainboard should be in the middle with the chrome. So I can't just detach the screen front the front plate? What is holding the three pieces of housing together? The six screws?
There are silver housings on eBay from time to time. Though, blue is a lot more common.

Three pieces. Back battery cover which is nothing.
Then there are two main pieces.
Chrome which is more like a holder of the fascia.
If I remember correctly, the front Fascia is the one holding all the board on it including that metal look piece(aluminum probably)
I will take photos and upload here...

Uploaded photos to the first post...

Hey, I'm looking to replace the chrome piece which has a few nasty chips in it, after removing the second back cover, how easy is it to take off that chrome piece?

Great post

How can I replace digitizer? I dropped my phone and the glass cracked

anyone know where i can get the tiny screw driver? I cant seem to find the correct one. they are either too small or too big.

how easy is it to replace the front cover, ive cracked the top of it and chipped a bit out the side (surrounding the screen) i presume it'd be simple enough. And does anyone know where i can get a good quality/genuine front cover replacement?

soldiers33 said:
anyone know where i can get the tiny screw driver? I cant seem to find the correct one. they are either too small or too big.
Click to expand...
Click to collapse
Sorry, you could have sent a private message.
I bought the screw driver here at local tool shop. Home Depot sells them.
Its called Trox Screw Driver and I bought exactly this one http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10051&productId=100087664&langId=-1&catalogId=10053&ci_sku=100087664&ci_kw={keyword}&cm_mmc=shopping-_-googleads-_-pla-_-100087664&ci_gpa=pla&locStoreNum=618
I don't have the packaging but they should be standard.
Good Luck

mps83 said:
how easy is it to replace the front cover, ive cracked the top of it and chipped a bit out the side (surrounding the screen) i presume it'd be simple enough. And does anyone know where i can get a good quality/genuine front cover replacement?
Click to expand...
Click to collapse
You can find the whole housing between $30 to $40 but the front cover is that actual main piece that holds all the internal components + the screen.
If the crack doesn't bug you much, I would not do it since you have to replace the sticker behind you battery as well, which is not easy to peel off + you have to take the screen off the old front fascia which is glued and kind of hard to take off.
Downside of the whole thing for me was the sticker. I have to find an alternative for this problem.

[Q] Taking apart tips

this goes out to people who have had any experience taking the hd2 apart, not interested in other comments thanks,
Basically im gonna rip it open tonight and attempt to fix my micro usb charger port, phone isnt being used i have a sgs2 now, so its no hassle if it dont work ill claim on my insurance, so looking for tips and advice on what to and what not to do when taking this beast apart please.
thanks in advance
cant send it to HTC because they already sent it back to me,

These are the YouTube videos I followed when I swapped my digitizer/LCD.
http://www.youtube.com/watch?v=cL-jnUKufC4
http://www.youtube.com/watch?v=t8Q7mXdcJ54

The only thing I encountered with my TMOUS HD2 is that one of the four torx screws that you have to remove to get into the unit has a "VOID" sticker that is exactly the size of the screw head and it came apart when I attempted to remove it. I don't know how this will affect an insurance claim if you pursue this yourself.
Also, pay close attention when moving/pulling wires. You have to put them back in the right order and pathways so that the phone closes properly. The volume up/down button is also a bit tricky when reassembling. I found it easiest to place it in the housing and keep it level so it doesn't misalign when putting the housing back on.
Good luck!

With the VOID stickers if you are extremely careful and steady handed you can remove them with a toothpick. What I did is take a toothpick and run it around the edges of the stickers to kind of loosen it up. If you are very careful you can kind of push the sticker around a little just enough to loosen it up then you can get the toothpick under it and pull up the sticker without tearing it. Just take your time it is not that easy but it isn't that hard either.

Aww man bsbokc, I wish I had you around when i worked on mine. I tried with a safety pin and I guess it was too sharp and it just tore right through it. I didn't think to trace the edge, I simply tried grabbing an edge and pulling across it. Fail.
A little heat might help soften the adhesive too. Just not too much to damage the phone though!

apalileo said:
Aww man bsbokc, I wish I had you around when i worked on mine. I tried with a safety pin and I guess it was too sharp and it just tore right through it. I didn't think to trace the edge, I simply tried grabbing an edge and pulling across it. Fail.
A little heat might help soften the adhesive too. Just not too much to damage the phone though!
Click to expand...
Click to collapse
I personally won't do anything with heat with my phones. But since I am posting here I guess I will ask you guys a quick question so I don't have to open a thread. Do all of the TMOUS HD2's have just one void sticker on the bottom right hand screw or are there two stickers each on the bottom screws?
I have a phone I have to send into HTC and I pulled one sticker from my myTouch but I thought there were two stickers on the HD2 can someone please look and tell me?

Just follow the videos carefully and pause often. Make sure you have all equipment and take
your time..
good luck

Thanks for the video links they were a great help
Sent from my HTC HD2 using xda premium

bsbokc said:
I thought there were two stickers on the HD2 can someone please look and tell me?
Click to expand...
Click to collapse
I've worked on mine and two of my friends' TMOUS HD2s. It's always been one void sticker on the bottom right (volume button side).

The simplest way of taking you phone apart.... Get a credit card... American express proffered because it is hard..... Use a rzor blade and remove void stickers careful.. Open scrues gently... Makesure not to leave any mark on the screw...... Take the credit card and force it in the joint on the right side of the headphone part... Then gently push borax from battery compartment area.... Also help you self a bit by prying the lcm with the credit card... Once it is out a bit... Do same thing for other side... Don't slide it to the other side... You may damage you head phone..... Once it is out a bit from top... Slide the card the sides until it opens up... Warning don't. Slide near the keypad.... You might damage the copper connector for antenna. And whether phone is out... You volume key will pppout too :F
Sent from my HTC HD2 using XDA App

Well guys I got it apart and back together,
little damage to the case trying to open it as it never went back together properly when it was sent away last time.
I would say, make sure you have a stiff plectrum (guitar pic) so much easier
take your time,
and if you get stressed take a break.
I got it all back together again, couldn't get a new micro usb connector on as the main board is screwed.

Permanently Fix SGS2 Echo and Digital Noise Reduction/Cancellation Problems

Hi All
I spent the last 2 days trying to find a simple solution to this problem. Even though my phone is still under manufacturers warranty and Service Providers warranty I decided to just do this as working carefully there will be no indication that the phone has been opened or the "fix" has been applied
I for one couldn't take my phone to a service centre as they would have booked in my phone and gave me some Nokia 3100 knock-off budget phone for one and the repair would have taken 21 days and having business requirements that my phone needs to meet I decided to just do it myself.
So I decided to open it up myself and fix it and here is the guide on how to permanently fix the echo that people get when phoning you.
Problem:
When you receive or make a call people on the other end of the line hear a echo of themselves and this might be intermittent but seem to be worse when having any type of cover on the phone.
Reason:
The reason this occurs is because the speaker depicted in the 3rd photo labelled as "B" has a rubber seal at the bottom of it that has gone loose from the casing by either a drop or some vibration that is making the speaker's sound go into the phone and picked up by the NC (Noise cancellation) microphone shown in the same photo as "A" rather than be isolated and out the speaker hole on the front of the phone.
Fix:
This fix is fairly simple and permanent. You only need a 5mm x 12mm piece of cardboard or think paper that is around 0.5mm thick that can be used as a buffer.
Procedure:
Step 1:
Picture 1 Shows the phone screws that should be removed 1st depicted by round red circles. Keep the screws in the same order as you remove them as only 4 of the 7 screws have locktite on them and be sure when you replace them you put them back in the same position.
Step 2:
Picture 1 As depicted from 1 to 6 is the easiest way to follow to unclip your back and front cover from one another to not break any of the clips. The back cover is very rugged so don't be afraid to unclip it as it is unlikely to break.
See Below Picture no1
Step 3:
Picture 2 is how it should look like when the back cover has been removed. We will only be focused on the area in the red block called ZZ
See Below Picture no2
Step 4:
Picture 3 shows the 2 components that's interfering with one another. "A" is the NC microphone sensor. Be sure to check that the sensor is properly inserted into the rubber sleeve covering it. "B" is the speaker and is glued with some ridiculously little amount of glue into the housing of "B" and can be lifted with a tweezers or some small object to be able to lift it out of the housing in "B"
See Below Picture no3
Step 5:
Picture 4 Loosen the speaker by just moving it in this aspect north and south a bit until it can be lifted up. Please note the arrow as it flips the way the arrow is pointing to expose the casing it is housed in. Clean out the housing of any dirt and wipe the speaker off as well of any dirt or substance that might elevate the speaker a little bit in its housing.
Step 6:
Picture 4 Flip the speaker back into its housing and firmly press it down so that it seats itself well in the housing. The rubber that the speaker is surrounded with should press firmly in the housing to seal it of any noise coming into the phone.
See Below Picture no4
Step 7:
This is where you use the piece of cardboard or thick paper of 5mm x 12mm by 0.5mm thick and place it over the speaker. I recommend cutting up a business card as they are the correct thickness. When looking at Picture 4 the cardboard should be covering the whole red block as depicted by "C" and should look like Picture 5 when placed
See Below Picture no5
Step 8:
Close up the phone and screw everything back together. The piece of cardboard or thick paper will ensure that the casing press the speaker tightly in place and keep it there without letting it leak into the phone to cause the echo effect for people calling you.
Step 9:
Enjoy calls without any echo effect.
This is all very simple to do and my echo has gone away completely. The replacement part they are referencing to in other topics is not really the problem and has nothing to do with it. In the process of replacing that part the speaker gets loosened and removed out of the housing and upon putting the phone back together they securely glue the speaker back in place and thats why they get the same results.
If this guide helped please post and say so. The problem has no relation to software or anything other than the speaker leaking sound into the phone being picked up by the NC.
Hope this helps. My phone is working 100% without any issues.

nice find!!! Ill wait for some more feedback untill i test this myself
So its samsung's fault that we have problems!

I tested 3 different brand new phones and all had the issue. Does this mean that Samsung fails to correctly assemble all of it's phones?!

manmad said:
nice find!!! Ill wait for some more feedback untill i test this myself
So its samsung's fault that we have problems!
Click to expand...
Click to collapse
Ye to some extent. They should have used more glue to be honest but then it would have made it impossible to replace the part if it should break.
I fixed mine this morning this way that's why I made this post because I couldn't find anything to really help me to get this resolved and this is definitely the fix for it.

EQUANT said:
I tested 3 different brand new phones and all had the issue. Does this mean that Samsung fails to correctly assemble all of it's phones?!
Click to expand...
Click to collapse
Think about it this way. Anything comes loose with vibration. Maybe the delivery company man handled the boxes a bit on delivery or the vibration on the phone itself while being shipped could have loosened it as well.
Remember the Speaker needs to be completely sealed off from the internals of the phone and that's why you need the buffer so that the casing can keep it firmly pressed in place and sealed off from the internals.
Been on the phone a lot today and every person I ask tells me there is absolutely no echo.
And that coming from a 100% guaranteed echo for the last month

so, anyone else tested this?

manmad said:
so, anyone else tested this?
Click to expand...
Click to collapse
I would seem that ppl will probably do it and then not come back to post it worked because my "Thank You" count went up yet no replies
If your phone does this why not just do it? You have nothing to lose

Fixeeeed!!
OMG! It really worked thank you

I have tried this and it still seems hit and miss.
The case i use is a CaseMate Tough, it still echoes with this case fitted. If I use my other case a CaseMate Slim, it still echoes to a degree but not as bad.
Definatley no echo with no case though.
On a side note and not a whinge, probably worth mentioning in your guide which way the buttons go around when they fall out when you take the back off

hi toxic dust Thanks for your guide,i didn't apply the fix yet...i'm italian so it's alittle bit difficult for me to follow and understand every step.
Is it ok to use insulating tape (like black tape)??
And did i understand properly ...you have to cover with the tape the whole "C" area highlighted in red?
Thank you very much

Thanks, will try it.

You sir, are a genius!
I don't have the echo problem (even with my Otterbox) but I will definitely keep this thread in mind if something comes up.
Thanks.

gasss12 said:
hi toxic dust Thanks for your guide,i didn't apply the fix yet...i'm italian so it's alittle bit difficult for me to follow and understand every step.
Is it ok to use insulating tape (like black tape)??
And did i understand properly ...you have to cover with the tape the whole "C" area highlighted in red?
Thank you very much
Click to expand...
Click to collapse
I prefer not to use anything with glue on it. You could probably use insulating tape (black tape) but you have to remember there are heat distribution on the inside of your phone and it might stick now but with heat applied any glue a specially on tape like that becomes soft and might short your phone as glue becomes conductive when in a liquid form.
Thick paper wont conduct at all and heat has no effect on it hence the preferance to a solid piece of thick paper or cardboard.
I used a Business card and cut that to the size I needed. I'm sure you could find a Business card of some sorts lying around
Yes. You have cover the complete section marked as "C". You will see that the marked section is the complete speaker. Just make sure that the paper is properly sized and is on it directly because you need it to securely press the speaker in place.
Definatley no echo with no case though.
On a side note and not a whinge, probably worth mentioning in your guide which way the buttons go around when they fall out when you take the back off
Click to expand...
Click to collapse
Mine was echoing without a case so for me its a 100% fix
The buttons can actually go in any way round. It will just make your button a bit more stiff to press. If you want the button smooth it has little hinges. Those hinges have a little dent in them on the 1 side. Ensure that those dents show to the screen side.

Mine alsof does it without a case. I think I'm going to try it in a few days!
Sent from my GT-I9100 using xda premium

Thx toxicdust. Your solution worked perfectly!!!
I had this echo problem since I started using the Samsung Galaxy S2 with a Melkco case and was frustrated about it. Then I decided to buy a larger accupack (Samsung 2000 mAh type EB-K1A2E). This came with a separate backcover so I needed another case. The new flipcase (Samsung EF-C1A2B) is compatible with this larger accu. I hoped with this new (Samsung!) case the echo would have disappeared, but no, it was not! After reading about this echo problem in a different forums I stumbled on your solution. This was the first one that was likely to be a good solution and not some quirky workaround. So I started following your instructions and can now say the echo is completely gone! Wow man, thank you for this. Some extra details: It was easy to take the 7 screws out, but a little uncomfortable to open the back after that. Most easy is to simply use your fingernail in between the front and back of the housing on the side and go around. In my case the speaker seemed not as loose as in your case, so I didn't bother to try further to take it out. Only thing I did was checking the fixing of the two mics (seemed okay), pushed the speaker unit carefully in its housing (but did not seem to move though) and put a small piece of a business card on the speaker as you indicated. See the white piece in the picture below. I think I made it al little bit bigger then your 12 x 5 mm. The acoustical feedback loop has broken this way, so it is a perfect solution which only takes 10 minutes to do.

I am convinced. I will try it tomorrow
Sent from my GT-I9100 using xda premium

dutchiek said:
Thx toxicdust. Your solution worked perfectly!!!
I had this echo problem since I started using the Samsung Galaxy S2 with a Melkco case and was frustrated about it. Then I decided to buy a larger accupack (Samsung 2000 mAh type EB-K1A2E). This came with a separate backcover so I needed another case. The new flipcase (Samsung EF-C1A2B) is compatible with this larger accu. I hoped with this new (Samsung!) case the echo would have disappeared, but no, it was not! After reading about this echo problem in a different forums I stumbled on your solution. This was the first one that was likely to be a good solution and not some quirky workaround. So I started following your instructions and can now say the echo is completely gone! Wow man, thank you for this. Some extra details: It was easy to take the 7 screws out, but a little uncomfortable to open the back after that. Most easy is to simply use your fingernail in between the front and back of the housing on the side and go around. In my case the speaker seemed not as loose as in your case, so I didn't bother to try further to take it out. Only thing I did was checking the fixing of the two mics (seemed okay), pushed the speaker unit carefully in its housing (but did not seem to move though) and put a small piece of a business card on the speaker as you indicated. See the white piece in the picture below. I think I made it al little bit bigger then your 12 x 5 mm. The acoustical feedback loop has broken this way, so it is a perfect solution which only takes 10 minutes to do.
Click to expand...
Click to collapse
Ye I had the same thing. No matter where I googled there was absolutely no solution and decided to trouble shoot myself as I wont be waiting 21 days to get my phone back with "No fault Found" response from them in any ways. I also have the extended battery and that made me also use they Silicone case that makes it even worse
After seeing how rugged the SGS2 is in the drop test on SmartphoneEnvy.com I decided to not use a case anymore as a 5 foot drop directly on the screen barely scratched the casing and the screen got no damage at all.
I am glad the solution actually works for more people and thank you for the picture. If you don't mind I will put it in my guide at the top for better illustration

It worked! Thanks alot. Let's hope it stays fixed
Sent from my GT-I9100 using xda premium

Please read my post I have made the step by step instruction
Here the link below:
http://forum.xda-developers.com/showpost.php?p=21795243&postcount=62

Cool. Even though you used rubber its cool. At least it fix the problem
Regardless of what is used it needs to be about 0.5mm think. Also remember that you might have had something underneath the speaker keeping it lifted regardless of the amount of pressure you put on it that's why its recommended to clean the speaker and the housing