Hello
I got an I9000. A few days ago I dissasembled the phone to separate the glass from the frame to fix the "home" button.
I was able to remove it without breaking the screen and fixed it. When I assembled everything back together I noticed that the earphone doesn't work and I can't hear what the other person says in a call. If I enable hands free it works well (uses the main speaker of the phone) and if I connect headphones to the audio jack it works as well.
Microphone is working fine (using the audio jack or using the phone's microphone).
I tried to replace the earphone-audiojack-light sensor module and it still doesn't work. I tried 2 different ones with no success.
The light sensor / proximity sensor works good as well. So I don't think there's a damage on the motherboard or the socket itself.
According to the I9000 technician manual it says to follow a few checks for this module that I attached on the attachments.
The components it asks to check are:
U207 - IC-CODEC
UCP200 - IC-MODEM
HDC302 - HEADER-BOARD TO BOARD
Surpsingly I am sure those components are used for other features of the phone. For example the IC-Codec must be the audio codec used to play sound. Sound works perfectly on the other speaker and on the audio jack. IC-MODEM is probably the chip that holds the modem.bin firmware of the phone, so if there was a failure with this chip I think I should have no signal, and I do. HDC302, well, could be, I wonder why tho since I've been carefully with this and I have dissasembled this phone a few times already with no issue.
Could you help me? How do the tests indicated in the manual? I only have a multimeter, but not an oscilloscope.
Thank you!
Hello
Seems this is a tough question. Do you know where I could find information? Maybe another forum that it's more into mobile hardware stuff?
Thank you.
Hello
After checking the pins with a multimeter I noticed that the pins 11 and 13 from the earpiece were not in continuity. Replaced the piece (a few times because all of them were broken) and phone is working again.
Thanks.
Related
Hi all,
As i started servicing all pdas for a couple of monthes (only as a hobby, i fix them for friends and relatives), i came across one BA that gave me some trouble.
i got it to replace its LCD that was broken as it was dropped and thats very simple to replace it, so far so good. now it has two main problems :
1. no sound from speaker (even when in speakerphone mode), but there is sound in the stereo earphones (i plugged to the connector by the sd card slot). - i can only assume that a bluetooth handsfree device it will also work.
2. although the backup battery is fully charged, if i remove the main battery even for a brief second, when turned on, the BA acts as if i made a hard reset.
as for solving the problems :
1. using a digital multimeter, i managed to track the conductivity from the internal speaker through its connector, flat ribbon to the connector which connects to the main pcb - so there is no contact problem from the speaker to the main pcb.
using the help from WIKI, i went to site that has the list of all components and their description - the IC that is responsible for audio amp is a MAXIM's MAX4410 which is a stereo headphone driver. a quick look at its charasteristics and typical configuration and i understood that (assuming this is the IC that drives the internal speaker) the speaker should have one pin which is ground and the other goes to the amplified signal from the IC. neither one of the pins showed it has GND to it. so maybe there is a bad GND line to the connector.
2. regarding the backup battery issue i do not know what makes this problem.
I am sharing this info with you all with two ideas in mind :
1. to resolve my problem and know those devices hardware better.
2. because i am quite a while watching xda-developers and WIKI and i got the feeling that a lot of eforth is given to the software side of all those pdas (which is greate!!! keep going, this work helps lots of people and it shows al thos mega corps they are not the only ones), but the hardware is a bit forgotten and left behind. let me tell you this, there are many VERY simple mini projects i made useing electronics (i am an electronics engineer in my profession) that made my life easy . i am now investigating those instruments hardware as i have several ideas to develope useful accessories to my pda (like an external IR transciver to control IR devices like TV,DVD and to communicate with my laptop, and some other ideas) and i believe we can do the same info sharing as done on software side but on the hardware side.
I will thank any ideas, thoghts or commentsabout this matter. Yol.
Hi all,
As i started servicing all pdas for a couple of monthes (only as a hobby, i fix them for friends and relatives), i came across one BA that gave me some trouble.
i got it to replace its LCD that was broken as it was dropped and thats very simple to replace it, so far so good. now it has two main problems :
1. no sound from speaker (even when in speakerphone mode), but there is sound in the stereo earphones (i plugged to the connector by the sd card slot). - i can only assume that a bluetooth handsfree device it will also work.
2. although the backup battery is fully charged, if i remove the main battery even for a brief second, when turned on, the BA acts as if i made a hard reset.
as for solving the problems :
1. using a digital multimeter, i managed to track the conductivity from the internal speaker through its connector, flat ribbon to the connector which connects to the main pcb - so there is no contact problem from the speaker to the main pcb.
using the help from WIKI, i went to site that has the list of all components and their description - the IC that is responsible for audio amp is a MAXIM's MAX4410 which is a stereo headphone driver. a quick look at its charasteristics and typical configuration and i understood that (assuming this is the IC that drives the internal speaker) the speaker should have one pin which is ground and the other goes to the amplified signal from the IC. neither one of the pins showed it has GND to it. so maybe there is a bad GND line to the connector.
2. regarding the backup battery issue i do not know what makes this problem.
I am sharing this info with you all with two ideas in mind :
1. to resolve my problem and know those devices hardware better.
2. because i am quite a while watching xda-developers and WIKI and i got the feeling that a lot of eforth is given to the software side of all those pdas (which is greate!!! keep going, this work helps lots of people and it shows al thos mega corps they are not the only ones), but the hardware is a bit forgotten and left behind. let me tell you this, there are many VERY simple mini projects i made useing electronics (i am an electronics engineer in my profession) that made my life easy . i am now investigating those instruments hardware as i have several ideas to develope useful accessories to my pda (like an external IR transciver to control IR devices like TV,DVD and to communicate with my laptop, and some other ideas) and i believe we can do the same info sharing as done on software side but on the hardware side.
I will thank any ideas, thoghts or commentsabout this matter. Yol.
its been a few months now and still no parts for my xperia so i cant get it fixed.
i have been wondering if its possible for someone to make a cab to turn off/on hardware headset jack or forcibly use handset speaker when in a call orsomething?
BTW i have tried all possible fixes using the "search feature"
Are you describing the problem where even though there is nothing plugged into the 3.5mm jack, the XPERIA thinks you've got something plugged in? If so, I'm having the same issue and have found that a quick way to fix this is to take the stylus and wiggle it about at the bottom of 3.5mm jack. This clears it up.
well yeah that worked before but my jack is kinda broken but working
some of the metal in the jack is really loose and the jack has a small broken part.
I had the same issue where my headphone jack reported that there was a constant headphone plugged in, it happened after I plugged a damaged headphone port into the phone.
It took many hours of research and a very intricate and careful dissasembly to fix the issue. I meant to take photos, but my primary camera ( my X1 ) was in pieces at the time..
Anyway, there's a little connector inside the headphone jack that makes contact with a pad, closing a circut, if the connector is bent too far out of the way, it doesn't make contact, and the phone thinks there is a headset inserted.
If your connector is actually broken, you'll have to jerry-rig a wire or something between the two plates to force it to know there's nothing in, but then you lose all headphone functions.
I had to bend the strip of copper to -exactly- how it should be, and it worked out for me, my phone is back how it used to be.
I hope this is of some help to someone, if it happens to me again, I'll document it properly, unfortunately I was in a rush this time, so I didn't have time to prepare properly, I went gung-ho and ripped it to pieces to get it right again.
what about a "software" method of fixing this problem?
doesn't windows mobile support turning headset off, from the registry, for example?
while using radio you can still redirect the sound to the main speaker, (this option is available on the radio panel) something like this feature can help us, i think..
Same problem here. I have tried some suggestion over here but didn't work. You may try it: http://forum.xda-developers.com/showthread.php?p=4485113#post4485113
I'm tired with annoying wire headset and now using a BT headset to be able make/receive calls.
Hope somebody can help us before we send back for repairing.
It happened to me, simply insert a clean "cotton buds" and pull it out again. I think, a dirt just got stuck causing some hardware short circuit or something. Don't know....but it definitely worked for me. I have tried those hardresets, softresets, tweaks and unfortunately none of them worked.
try to drain the battery and charge it back up.
Sometimes would be nice to combine some of the threads because they refer to the same problem
http://forum.xda-developers.com/showthread.php?t=529449
Anyway from my knowledge there are two reasons for this problem.
You may guess
1. Hardware:
This issue had been described very often. Of course the jack is a delicate piece of hardware, which could be damaged physically due to some bad plug or violent force.
2. Software:
It's obvious that the connection is controlled by a piece of software.
I realized that the problem had gone with the latest update.
Maybe it would be helpful to know about the firmware version you got on your phone.
P.S.: Anyone out there who may add this issue to the wiki?
scholbert
Ok so the digitizer on my milestone went bad about a month ago, i ordered one off ebay and installed it myself. unfortunately while doing so i ripped the flex ribbon that has the sensors attached to it. went on ebay again and ordered that part and installed it, didnt destroy anything this time.
put the phone back together and everything seemed to be working fine, then i got a call, the person on the other end couldnt hear me and the proximity sensor caused the screen to go blank even before i put the phone to my ear
if i put the phone on speaker phone the person hears me but its very low im told, inserting the headset works fine, person can hear me perfectly.
i tried doing a recording with the phones sound recorder and all i hear is a hissing type sound when i play it back, i also downloaded an app to test the proximity sensor and its showing a distance of zero and when i put my finger near and further away from it its still saying zero.
tried doing a battery pull..hard reset, reflashing the froyomod that i have install and nothing seems to work, could this be a defect with the flex ribbon i bought? would this ribbon affect the microphone?
any help would be appreciated
Thanks
I also damaged the flex ribbon while changing the digitizer... where did you get the ribbon? Anywhere in the EU?
got it off ebay..it was shipped from china
bump........
I have the same problem and it's the effect of the digitizer replacement. Light can get access to the sensor between the digitizer and the sensor. If you press the left upper side of the digitizer the proximity sensor is working again, very annoying during calls. I tried to put some spongy tape behind the sensor and the metal backing plate it's better but not perfect.
luvkillin said:
Ok so the digitizer on my milestone went bad about a month ago, i ordered one off ebay and installed it myself. unfortunately while doing so i ripped the flex ribbon that has the sensors attached to it. went on ebay again and ordered that part and installed it, didnt destroy anything this time.
put the phone back together and everything seemed to be working fine, then i got a call, the person on the other end couldnt hear me and the proximity sensor caused the screen to go blank even before i put the phone to my ear
if i put the phone on speaker phone the person hears me but its very low im told, inserting the headset works fine, person can hear me perfectly.
i tried doing a recording with the phones sound recorder and all i hear is a hissing type sound when i play it back, i also downloaded an app to test the proximity sensor and its showing a distance of zero and when i put my finger near and further away from it its still saying zero.
tried doing a battery pull..hard reset, reflashing the froyomod that i have install and nothing seems to work, could this be a defect with the flex ribbon i bought? would this ribbon affect the microphone?
any help would be appreciated
Thanks
Click to expand...
Click to collapse
Luvkillin, have you been able to fix this abomination of a mobile phone? I had a malfunctioning digitiser and replaced it, after that the microphone stopped working so i thought that I had broken the microphone. Changed the audio pcb and turns out that its still not working. My prox sensor also doesn't work but with all the other problems this is just a nuisance.
I found that motorola couldn't be arsed specifying the second microphone that is on the logic board and some acting as noise cancelling. I installed a db meter app and picks approximately 25db except when the phone rings which goes to 65db. So if the noise cancelling module is disabled by software, the mic could work without changing the logic board.
Did you manage to fix it?
o2xygen said:
Luvkillin, have you been able to fix this abomination of a mobile phone? I had a malfunctioning digitiser and replaced it, after that the microphone stopped working so i thought that I had broken the microphone. Changed the audio pcb and turns out that its still not working. My prox sensor also doesn't work but with all the other problems this is just a nuisance.
I found that motorola couldn't be arsed specifying the second microphone that is on the logic board and some acting as noise cancelling. I installed a db meter app and picks approximately 25db except when the phone rings which goes to 65db. So if the noise cancelling module is disabled by software, the mic could work without changing the logic board.
Did you manage to fix it?
Click to expand...
Click to collapse
No i havent, its just sitting at home in a drawer
i also installed a db meter app and got a consistent 16-19db when the phone is not in use. i assumed that it was too much of a coincidence that everything was working before and as soon as i changed the cable and digitizer they stopped working. plus the digitizer and cable i bought was for the milestone a855 and i have a a853. when i checked they seemed to be the same but i guess not.
im planning to just buy a new digitizer and cable for my phone specifically and see how it goes.
luvkillin said:
No i havent, its just sitting at home in a drawer
i also installed a db meter app and got a consistent 16-19db when the phone is not in use. i assumed that it was too much of a coincidence that everything was working before and as soon as i changed the cable and digitizer they stopped working. plus the digitizer and cable i bought was for the milestone a855 and i have a a853. when i checked they seemed to be the same but i guess not.
im planning to just buy a new digitizer and cable for my phone specifically and see how it goes.
Click to expand...
Click to collapse
I believe its the noise reduction microphone damaged at some point in the disassembly. Did you check the 3 gold pins on the right upper side of the logic board?
o2xygen said:
I believe its the noise reduction microphone damaged at some point in the disassembly. Did you check the 3 gold pins on the right upper side of the logic board?
Click to expand...
Click to collapse
Yea i did. dont see any damage at all to the pins or the board
The same problem here. I've changed digitizer and my proximity sensor stopped working. So I thought that I broke it during the work. I've ordered new main flex with the sensor. It was much better but still not perfect. But microphone went down. I think the problem is microphone board or the flex cable that connects it to the mainboard. Did you manage to solve the problem? I've ordered new mic and new flex.
_KazmirZ_ said:
The same problem here. I've changed digitizer and my proximity sensor stopped working. So I thought that I broke it during the work. I've ordered new main flex with the sensor. It was much better but still not perfect. But microphone went down. I think the problem is microphone board or the flex cable that connects it to the mainboard. Did you manage to solve the problem? I've ordered new mic and new flex.
Click to expand...
Click to collapse
Nope..still no fix
did that fix yours?
anyone knows how to disable to noise cancellation microphone?
Hi guys,
to refer to the proximity sensor issue, i'd like to point you on my old post over here:
http://forum.xda-developers.com/showpost.php?p=9810999&postcount=8
Please check for the rubber...
Concerning the microphone, this might be related to the electrical contacts of the mic.
Please make sure again that everthing is right in place.
Would not harm to check the flex cable connectors as well.
Regards,
scholbert
Solved problem
Hi to all,
I had problem with my proximity sensor, it didn't work at all. (I had cm7, cm6 and cm9 rom)
I installed stock rom and it works again. ))
Microphone problem
Hi all !, I'm having a similar issue after change the digitizer, I'm not having any issue with the proximity sensor ... but is not the case with my microphone, when I answered a call my voice is heard into the speaker and the other person didn't hear me .. somebody found a solution to this problem ? Thanks all !
Had simular problem after replacing digitazer. if i press hard on upper side of the screen, then for some time everything comes to normal. So i desided to heat it up using a hair dyer for about 10 minutes, than press as hard as i can and wait till cool down. now everything is fine.
Hi,
Has anyone have such problem with speakerphone during phone (or whatsapp/viber etc) call that
All MIC's passes tests OK, record and then play my voice very well and loud.
But when I call someone or someone call to me and I active speakerphone to put phone away from my ear - there are mess like echoes, some robotic voice like signal excitation and interference started each time for person on the other end of the line. Person hears himself more often than my voice. So it's impossible to talk normally on speakerphone. I hear companion very good, but for him it's mess. But if I deactivate speaker and use earphone (in front of my ear) - then everything is ok for me and person on the line.
Does anyone know what could be wrong? Problem persists on each FW which means that problem is hardware. I checked all mics in ,12345+= test utility. Every single microphone is ok. But it seems that when they work together - sometihng is going wrong. There are 3 mic's in this phone. First one is located on board 90AI0060-R10010 (bottom left corner), and this part can be replaced, it doesn't cost an arm and a leg. Second one is located in top upper part on main board and it looks like it can only be repaced by replacing motherboard which is cost a lot of $$$ which is not acceptable for devices not covered by warranty anymore (unlocked BL). Third mic installed on board 90AI0060-R10020 under back cover (where rear camera is located) and also can be replaced, price about 10USD.
But where is controller/unit which operate by these mic's?
Is there anyone who has or had such problem? What part(-s) were replaced is service under warranty?
Hi
I hat similar problems. I tried a lot of adjustments at the apps and the phone. Set the phone to factory settings. Nothing helped. Even the upgrade to Android 12 didn't change anything. Finally I sent it for warranty repair to Asus workshop and now I am waiting to get it back. Hopefully tomorrow I can tell you the result.
Greets KC1
KC_1 said:
I hat similar problems.
Click to expand...
Click to collapse
Ok, please also let me know (if possible) what part(-s) will be replaced.
There are 3 microphones in our phone. And I guess two of them are operate during phone calls on speaker. Main mic on sub-board which is located at the bottom of phone and second one - noise-canselling MIC which is located on motherboard (top part of phone).
Hi, today I've got it back. The workshop protocol says they made a firmware reset (same I already did before and told them). And the result is, the fault is still the same. This was second time I sent it for repair. First time the WLAN module broke down. They changed the motherboard and after getting it back from the asus workshop the the speakerphone function didn't work any more. You can see, there are absolutely specialist at work.