Echo for callers after screen replacement - Defy Q&A, Help & Troubleshooting

OK guys looking for community experience. My defy took a tumble and cracked the screen, the only thing holding the glass was a screen protector. I bought a screen from eBay and replaced it myself. All went well till I started getting complaints that callers to me just hear themselves back, now the complaints started first call after replacement screen and with every call since. Anyone got any ideas what might be wrong?

The only logical reason i can think for this is that somehow you managed to put something out of place when you assembly the phone back... did you try to disassemble and try again?
Sorry that a don't have technical skills to give a proper answer, but that looks logical!
Good luck!

It might be echo cancellation mic, maybe contacts aren't set properly on the board. Try to call with headset, it should be no echo.
When i'm holdnig my phone on my ear with my shoulder people are telling me that they hear themselves...didn't investigated that to find culprit, but it is surely because echo cancellation mic.
P.S. And don't call me Shirley

Hello,
I have exactly the same problem. This was my second replacement. The first time i just replaced the glass digitizer leaving my old cover along with the original buzzer. No problems there. The second time though i decided to order the whole thing all together (cover, digitizer, buzzer) in order to same myself the trouble of unsticking the glass and removing all that adhesive glue.
Unfortunately since my second replacement every time i make a call, the person i 'm calling complains about echo and hearing himself. I 'll try to replace the buzzer with the older original one i have and i hope everything turns out good.
Do you have any tips for me, have you solved your problem @rydroid?

any resolution
Hi, did anyone get a resolution to this problem? I have also replaced teh entire front cover and digitizer and am noww getting the same problem. I have double checked everything is installed properly which it seems to be. i think that maybe the noise cancellation mic is being pushed too hard onto the back cover or something.
Anyoen get it sorted?
Cheers
Chris

Guys,
Here comes the solution for my particular echo problem:
I got the same trouble with my girlfriend's phone. Few days ago I replaced the digitizer and since then when I was calling her phone I heard my own voice in my phone back with a nice echo effect. I took the phone apart again to separate the voice of the speaker from the microphone somehow and in the meantime I accidentally lost one of the yellow rubber rings. It fall down to the floor. When I was looking for it on the floor I just found it and I also found another yellow part that I was most probably lost few days ago at the first round. When I put back all the yellow parts and tested the phone again this time the problem just gone. So the solution for me was putting back the yellow part that is located around the bottom of the phone that seems to be isolating the voice that is coming from the speaker. This part is only visible if you take the phone apart in a way the only the LCD and the screen is together in your hand. The mentioned yellow rubber can be seen on this picture (which I just picked by google-ing some random picture): LINK. It is the one seen on the part that is on the bottom left corner, under the LCD, on the left side.
I hope this helps other to resolve the echo issue.
Cheers,
Adam

end of my woes.
I had the same thing as adam in the end. its the little orange silicon bit that shields the microphone. it fits into the fornt cover near the microphone hole. I accidentally threw it away with the old cover and then had the problem. I had to buy a complete new casing in the edn but it is working fine now.
Chris

Hello,
I had the same echo issue.
I have to thank you very much Adam, because I also lost mic seal when I changed touch screen. And I had a big luck, because I found it on the floor after 1 week!
Once again thank you

I am happy to read that it helped you, Hark33. That was the exact reason why I wrote it down. :good:
Cheers,
Adam

hi guys
same problem here, i have a second hand defy plus (maybe previous owner replaced the screen and forget the yellow rings),
so where i can buy this yellow rongs??
really thank you

Hello,
same here, thanks very much Adam!!! :good:

Related

Need advice: broken speaker

Hi,
The speaker on the outside of my universal (the onw you hold against your ear with when the screen is on the inside) is broken.
That started as something like a bad contact (if I pressed the phone against my ear it would work, otherwise not). Now it is not working at all.
The speaker on the LCD side is working fine.
The advice I want:
I took a look at the service manual PDF I got and disassembling the phone to reach that speaker is a lot of work. I do have experience with diassembling electronic devices and even do some soldering, etc. However, my doubt is this: I have a phone which does work, but the way I like to use it to make calls does not work.
Question 1
Is it worth the trouble to diasassemble the whole device just to check if it is indeed a bad contact due to i.e. dirt? Or will I actually risk breaking something off, which will render the complete phone useless? Looking at the service manual, one needs to use a plastic tool to actually open the phone. How easy do the hinges break off?
Question 2
Has anyone had a similar problem? Was it easy to fix?
Thank you!
Cheers,
vma
you dont need to disassemble the whole phone just disassemble the screen . It isnt that hard to do, just remove all the screws from the screen . The screen casing is difficult to budge at first but once you have freed part of it open, the rest follows quite easily.
Hi,
Meanwhile I couldn't resist and opened it...
...and I found the guilty part.
It seems that the outside speaker is actually attached to the case and uses a contact connection to the PCB. This connection is made by to metal plates, which are tiny and folded. They will compensate the varying pressure made on the case (i.e. when you press it) and I guess with time they tend to break at the fold.
This happend to one of the two contacts. First I tried to fix it, but the truth is that it is so small that it is quite impossible to do anything about it. I considered soldering a small wire, but that would require to solder the other end to the pin on the PCB, which then would mean, I could no longer use a regular replacement speaker, if this one had any other fault (unless I could clean the contact again, but trying that, I could break something else, also).
This means: now I am not able to use the outside speaker anymore...
Question: where can I purchase a replacement one? Would anyone sell me one from a broken Universal (for a symbolic price - anything over 10 Euro is too much, as I would prefer to just buy a another second hand Universal)?
And as I was figuring this out, I used the occation to fix that loose stylus!
1) Open the underside case (4 screws, then open the case all around with some thin plastic).
2) Roll a little bit of celotape and place it between the case and the pin that fixes the stylus in position.
3) Try it out until it is OK.
4) Close the case and that's it!
Cheers,
vma
Hi buddy, in fact I did have the same problem that you're having some months ago, my uni fell and since then the problem just got worst, until some day a couple months ago I opened it and fix it.
It's just like you say, the little golden plated contacts wore off, then the little speaker's metal plates just were too high to make any contact against the pcb, it's really simple, just pull the plates gently away from the little speaker, do clean both sides of the contacts (pcb and speaker's plates), i did this with a little xacto knife (be very gentle), and that's it! It worked just fine.
The problem is that in my case one of the metal plates broke off.
I tried to fix that, but it is to small for me to achive anything.
Cheers,
vma

In-Call: Screen turns off and unresponsive

Hi everyone,
I recently changed my HTC's Aria digitizer because it was cracked.
During the process everything went smoothly however after that I have discovered that when a person calls me or when I call someone the screen turns off and never gets back to normal if there is no other "stimulation" such as putting the phone to charge for example.
My guess was there was a problem with the sensor so under settings I chose to keep the screen awake at all times during a phone call, still, I am having the same problem.
The weird thing is that sometimes when I remove the battery cover everything works fine and the screen keeps on, but sometimes not, so its not a constant rule..
I may have messed up something during the replacement of the digitizer (its just the glass not the lcd) such as removing the sensor and not placing it back correctly but the thing is that I dont really know the components of this device so Im not sure what is what..
If anyone could help me to understand the problem a little bit I would really appreciate it.
Thanks in advanced..
Anyone? Please
The sensor is right above the AT&T logo. If the little rubber ring isn't perfectly aligned with the sensor, you will have this problem. My wife's phone has a similar problem and it is fixed (temporarily) by firmly pressing on that corner. The adhesive strips have failed and I am looking for a source besides "Repairs Universe".
Thanks a lot!
I will try to take apart my Aria again and see if I can align it correctly
thanks again
glad that i found this, having same issues with my wife's aria, will give it a shot

[Q] Bug during call, please help!

Hello! I have recently installed CM9-20120319-NIGHTLY-jordan on my Defy and it seems there's a problem during calls. The proximity sensor is not working (when I'm taking the phone from next to my ear, the screen won't turn on, as it used to before in the CM7). Also, the screen remains black and won't turn on unless the other party hangs up the phone. I need some help about how should I fix this. Thank you!
florinjax said:
Hello! I have recently installed CM9-20120319-NIGHTLY-jordan on my Defy and it seems there's a problem during calls. The proximity sensor is not working (when I'm taking the phone from next to my ear, the screen won't turn on, as it used to before in the CM7). Also, the screen remains black and won't turn on unless the other party hangs up the phone. I need some help about how should I fix this. Thank you!
Click to expand...
Click to collapse
Ok, I know this is really old, but I just had the same problem and want to document how I fixed it cause this is a top search result for me and I figure it must be for others too. I had observed this behavior just after installing Quarx's CM11 Nightly, and I had assumed that it was a software glitch.
Some months ago I actually managed to crack the glass on my phone, and I had ordered replacement parts. I thought I had just ordered glass, but I got a whole new case that was all shiny and new. So I swapped broken parts for new and went on my merry way. But I did notice that the volume down button was sticky, but I just dealt with it for a while. Recently when I was Rooting and installing CM11, I got frustrated with my volume down button trying to get into the recovery system, so I cracked my case open to take a look at the sticky button. I found a small plastic burr left from the molding process. I sliced it off with a razor and reassembled and thought nothing of it. Happy with my functioning volume down button I proceeded along my merry way.
Now, why was this detail in the story important? Because in between Froyo and CM11 I had inadvertently caused my proximity sensor to malfunction, by tightening the screws too tight when I put it back together. It wasn't CM11; it was me. The fix was easy. Pop off the battery cover and loosen one screw a half a turn at a time until the proximity sensor started working. Pro Tip: Dial into voice mail while trying this so you can have an active call without hassling your brother.
I only know this now because I found this video:
[Achievement Get: Thread Necromancy]

LCD Screen Issue with Moto X Pure XT1575

Hello all. Recently, my wife's phone was experiencing rapid ghost touches. I called customer support and since the phone was out of warranty, they offered to trade in for a refurbished one for $109. I didn't want to do that so I bought a new digitizer from ebay for about half that price.
I received the new digitizer and replaced it following some guide online. I placed it back together to test it out - only put a few screws back in. The new digitizer fixed the ghost touches issue and everything was working well.
However, I didn't finish transferring some rubber pieces from the old frame (I think they're for the front speakers. I also didn't transfer the grills for the front speakers. So I took the phone apart, transferred those rubber pieces and then attempted to transfer the grills. However, they weren't going in their slots very easily and I was attempting to press the bottom one in with some force. I didn't notice anything out of the ordinary, but now the screen just doesn't display anything. The phone is on and the touchscreen seems to work.
I can do the double twist to get to the camera and take a picture with the volume button. However, the screen is completely black. Also, if I call the phone number, the phone starts ringing, so I believe the phone still runs and the touchscreen is still ok. However, it doesn't display a single thing.
So I re-seated all of the connectors involved with the repair (especially the LCD and digitizer connectors), but that didn't work. After that, I switched back to the old digitizer I just replaced just to make sure I didn't break the new one. It still isn't displaying.
Is anyone familiar with this issue and what I can do to fix it? Thank you
*I asked for assistance in reddit and lenova forums so far, but that hasn't proved fruitful

No sound after screen replacement (solution?)

So my poor Moto X is now on its 4th screen (dropped and cracked, split screen static thing, etc. ) and I ran across something tonight that may help others.
I have taken the phone apart many times now, what with actual replacement of the screen and trying the old ribbon cable adjustment trick. (which rarely helps).
Tonight I popped in the new screen and was pleased that it fixed my static split screen issue. But a few hours later I noticed I had no sound! Practicing my Google-Fu I found several instances of screen replacement killing the sound but no solutions. Searching the forum here I couldn't find any help either. WTF?!
After taking the phone apart several times with no success I put on a long You-Tube video with sound and started squeezing and pressing on the back of the phone and I got a small squawk from the bottom speaker. I continued squeezing and put in a few screws on the ends and as I tightened them much more than I normally am confident in tightening I got crackling sound from the top speaker. I put all the screws back in and tightened them as much as I dared and now I have sound, better sound than I have had for a while.
I think most of the eBay replacement screens are probably factory seconds and maybe the threaded post inserts on this one and others are a gnats ass longer than they should be or something.? So if you replace your screen and the sound stops, try tightening the screws a little more.
FireRaider said:
So my poor Moto X is now on its 4th screen (dropped and cracked, split screen static thing, etc. ) and I ran across something tonight that may help others.
I have taken the phone apart many times now, what with actual replacement of the screen and trying the old ribbon cable adjustment trick. (which rarely helps).
Tonight I popped in the new screen and was pleased that it fixed my static split screen issue. But a few hours later I noticed I had no sound! Practicing my Google-Fu I found several instances of screen replacement killing the sound but no solutions. Searching the forum here I couldn't find any help either. WTF?!
After taking the phone apart several times with no success I put on a long You-Tube video with sound and started squeezing and pressing on the back of the phone and I got a small squawk from the bottom speaker. I continued squeezing and put in a few screws on the ends and as I tightened them much more than I normally am confident in tightening I got crackling sound from the top speaker. I put all the screws back in and tightened them as much as I dared and now I have sound, better sound than I have had for a while.
I think most of the eBay replacement screens are probably factory seconds and maybe the threaded post inserts on this one and others are a gnats ass longer than they should be or something.? So if you replace your screen and the sound stops, try tightening the screws a little more.
Click to expand...
Click to collapse
I remember getting the same problem when I replaced​ my screen. I don't know if it was a fluke or not, but those black speaker screen covers block the the magnets from the screen. I think the speaker magnets and the screen interferes somehow.
I forgot to place those black screen covers, and it didn't work. I reopened and put them on, it worked. Give it a go, doesn't hurt to try

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