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[Q] Nexus One main microphone repair/replacement?

Hi all,
I've recently had a crash - my N1 fell out from my pocket while climbing (stupid, I know..) - cracked screen, all that.. I've managed to replace the digitizer without big problems, but I have a more serious issue: the main (built-in) microphone stopped working and now I have to use the headset for every call
I've sent it to HTC service and they said the motherboard needs replacing and wanted me to pay 300$ for it..
Since it's quite a lot for a microphone, before buying the new one (at least 200$ for tho mobo alone) or sending it again to the HTC guys for repair, I'd like to ask you if there is anybody who had anything to do with those microphones or issues similar to mine.
The microphone itself is a small gold rectangle-shaped thing glued to the motherboard, but I cannot make out any markings on it (there seems to be something written on it, it's just not readable any more). It seems to be exactly the same as the noise-cancelling one near in the upper part of the phone. Of course, before cutting or soldering anything I'd like to know as much as I can..
So.. the questions are:
Has anyone repaired a thing like that or managed to replace a microphone on Nexus One motherboard? How could this be done?
Does anybody know where I could buy a microphone that would match?
I know it's a long shot (and a long post ), but I figured it's worth a try to look for somebody who might have some insight.
Thanks in advance,
Kuba
P.S. Could anyone move this question to Q&A, please?..first post gone wrong..

you could just buy a new one for under 300$ on ebay or a used one for less than 220 for everything new If something like that is messed up its not worth fixing, too much work

hitmanre,
thanks for the reply, but...
As I said, I figured the part on buying another mobo (or a broken N1 for parts) on my own.
I was just curious - from a DYI perspective - what's going on on the board and what's actually broken around the microphone.. If it was only the microphone then it should be easy enough to replace - but if it's a crack somewhere in the inner layers of the board, then bummer..
In fact, I opened my N1 again yesterday and cut the mic out...curious thing is that there seem to be only one connected soldered part between mobo ant the mic.. Could anyone explain how a microphone could work with a single connector? there doesn't seem to be any ground connection anywhere..
If I have some time, I'll post photos - but no sooner than in a week - going on vacation
See you,
Kuba

I have the same problem, and I live outside the service coverage area. I've had my Nexus One since May 2010, so it was more than one year old. It's really sad to quit such a really nice phone just because it can't make phone calls. It seems that nobody here in Lima know how to repair a N1. And I'm so afraid to open it...

I have seen 2 of these phones with the same issue. one mine and second a customers. and I have tried replacing the mic headset jack (headset jack can short out audio) and still nothing. mic works with loudspeaker but not in normal mode with earspeaker.

ok today I was able to get my hands on a working nexus. and swapped the upper flex and that fixed it.
the only thing is that we ordered this part from one of our sources to fix a power button (which is on the same part) and it had this issue. so I had to replace it again

blevinski said:
ok today I was able to get my hands on a working nexus. and swapped the upper flex and that fixed it.
the only thing is that we ordered this part from one of our sources to fix a power button (which is on the same part) and it had this issue. so I had to replace it again
Click to expand...
Click to collapse
I also have a problem with the mic suddenly not working and working again suddenly. So it must be a damaged flex since the phone has a dent on the upper left part of it.

Spare parts inside....

Hello everyone, I considered putting this in the marketplace but it makes 100% more sense to have it here.
I'm selling my faulty nexus one for spare parts so if anyone needs a part of the phone (except the PCB that the microusb sits on)
give me a PM and we can come to some sort of arrangement, obviously undercutting ebay prices lol.
for example... lcd replacement, digitizer or camera, speaker, volume buttons etc.

I've got a weird one to ask about....
What about the bottom soft touch cover (that goes over the usb port)?

do you have the little black plastic piece that covers the bottom pcb? its got the little vibrator connected to it.
Mine is like slowing down and isnt as powerful and i think its the reason for my haptic feedback dying

MaximReapage said:
I've got a weird one to ask about....
What about the bottom soft touch cover (that goes over the usb port)?
Click to expand...
Click to collapse
Could you get a picture of a nexus one and draw on paint what bit you mean? lol

Hi, may I have the camera module, the flash module and the power/volume buttons? how much for them? also, can u send them to colombia? thx!
If not, I got a friend in USA who will receive them!
edit: and usb cable and charger!! I know, I've been very bad with my N1

Rikarudo said:
Hi, may I have the camera module, the flash module and the power/volume buttons? how much for them? also, can u send them to colombia? thx!
If not, I got a friend in USA who will receive them!
edit: and usb cable and charger!! I know, I've been very bad with my N1
Click to expand...
Click to collapse
PM me so we can sort it all out

Megacamz said:
Hello everyone, I considered putting this in the marketplace but it makes 100% more sense to have it here.
I'm selling my faulty nexus one for spare parts so if anyone needs a part of the phone (except the PCB that the microusb sits on)
give me a PM and we can come to some sort of arrangement, obviously undercutting ebay prices lol.
for example... lcd replacement, digitizer or camera, speaker, volume buttons etc.
Click to expand...
Click to collapse
Hi Magacamz! I wonder if you still have your LCD Replacement? For how much are you expecting to sell it? Would you send it using USPS International? If positive, we can arrange using Paypal or something similar...
Tnks!

gciola said:
Hi Magacamz! I wonder if you still have your LCD Replacement? For how much are you expecting to sell it? Would you send it using USPS International? If positive, we can arrange using Paypal or something similar...
Tnks!
Click to expand...
Click to collapse
i'll take second in line if he doesn't take this.

Megacamz said:
Could you get a picture of a nexus one and draw on paint what bit you mean? lol
Click to expand...
Click to collapse
It is literally the piece that goes over the USB port and gold power connectors on the bottom of the phone. It's the same material as the battery cover.

Where to buy a replacement keyboard?

I need to replace the hardware keyboard in the Q. Reason is the 'b' key doesnt click much anymore, it has almost no travel when typing on it. Where can I buy a genuine replacement? Is it also difficult to replace?
Please, let me know if you can.

here you go ;
http://www.etradesupply.com/oem-motorola-photon-q-4g-lte-xt897-qwerty-keypad.html

This will not help you... Photon Q's keyboard is build in such way that there are golden circles with golden dot inside - each button has its own. Then, on those golden pads, there is a sticky film with metal caps which, when you press, they connect the dot with the circle around it. So presumably the thing that got broken on your phone is either the metal cap (it can get worn...) or it somehow moved (rather impossible). So the thing you want to buy is the sticky film (white foil) with metal caps. If thats not it, then you need the motherboard...
If I didn't explain it clearly, check the photos, for example in Cornholio GSM hardware mod thread

Thanks for the advice. Indeed, I believe that's the problem. Where to find a replacement for that one?

I've seen those replacements for XT894, which is the same. Search for that one and you will find it on Ebay.

Die Bruine said:
I've seen those replacements for XT894, which is the same. Search for that one and you will find it on Ebay.
Click to expand...
Click to collapse
....remove button foil, clean it and stick it back...
test it and let me know

How do I dismantle without breaking it? I can access the battery and the soldered SIM... what should I do to proceed further?
Thanks

antonyfirst said:
How do I dismantle without breaking it? I can access the battery and the soldered SIM... what should I do to proceed further?
Thanks
Click to expand...
Click to collapse
on youtube is Photon q Disassembly video

someone still need a replacement?
i work in a wearhouse that have cooperations with Motorola.
we have a lot of spareparts but i never needed them for now.
iam not sure if we have xt897 replacement keyboard because its not released here.
and the letters and numbers on the keyboard are only sticker i think.
but i will ask

Hi there, the keyboard sticker with metal pads would be handy spares, but do you have access to the slider ribbons? These are a wearing part - the one that joins the screen to the base.
I'd like a few of those!
Sent from my PHOTON Q using XDA Free mobile app

we have every little screw, rubber sealing or what ever. but iam the first of our company that asked to buy things intern.
some guys in our office need to contact motorola first and ask for permission. we will know more in a few days.

smoking weed can affect (mistake post)

Sounds good - I need 4x ribbons, 2x screens & digitizers, 3x batteries.
See what you can do - I'd take more if you can get it.
Sent from my PHOTON Q using XDA Free mobile app

[Q] How is this part called

Hi!
I noticed my earpiece is not working at all and decided to disassembly my Relay. It was a shock for me, when I saw, that the part marked on red here: http://i.epvpimg.com/A6xZd.jpg
looks like that in my phone:
http://i.epvpimg.com/uTXBg.jpg
http://i.epvpimg.com/xlpvg.jpg
http://i.epvpimg.com/b4aWf.jpg
http://i.epvpimg.com/65U5d.jpg
(I am even wondering how is my phone working now...).
Could somebody give me a name of this part? And can it be a reason for not working earpiece, or should I disassembly my Relay "deeper"?
I found this: https://www.gounlock.com/details.php?itemId=8555
I was looking only on the length of this cable, so I'm still not sure if it's what I'm searching for.

That would be the main flex cable
http://forum.xda-developers.com/showthread.php?t=2206523
Be sure to thank jax184

demkantor said:
That would be the main flex cable
http://forum.xda-developers.com/showthread.php?t=2206523
Be sure to thank jax184
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Click to collapse
Thank you for your answer demkantor.
The second post which I didn't read before helped me mostly: http://forum.xda-developers.com/showpost.php?p=39598833&postcount=2
Could you confirm if the part I put with a link in 1st post is what am I searching for? I couldn't find anything for "main flex cable" in Google and also I don't think it's the same part.
And is it possible to change it without replacing the whole screen-part of the phone? The disassembly manual ended with same step I did.

Unfortunately I can't say for sure as I haven't yet torn this phone apart myself
I would recommend to pull out the broken cable and try to match it physically to the one you linked
Otherwise search out a thread that someone here has done this and ask if they can confirm
Best of luck!

When I had to replace a broken screen on my Relay, the replacment screen came with that cable, screen, digitizer and top case. If there are any more still being sold elsewhere, it might be easier to replace then entire top half of the phone. I had cost me $40 about a year ago, unfortunaglly I can't find it again listed on ebay. Good luck

Backlight gone - resistor re soldering? will it harm the phone?

Hi. I have a Sony Z3. And the backlight had gone. I have had experience and removed the backlight resistor from the main board and just bridged the two connections. This solved the issue. I have also done it with the z,z1 and z2.
But I was wondaring as I dont know much about circuit boards. Will just bridging the connection cause any damage? Will it last long?
The phone is already out of warrenty.
I have soldered a Sony z and it has lasted a very long time. But can I expect the z3 to be the same?
Thanks for any help and wisdom!!

Hi
Can you take picture i have 6603 and same problem please help me

You have a two year manufacturer's warranty with Sony, and you don't need a proof of purchase.
Return it - unless you've voided it yourself.

dear
The warranty is void
I replaced lcd and frame when i did the brightness no work more
I need resistor location

Hi I've don't it a few times and it always worked. I don't have one to take a picture. But it's near the bottom left of the board . The component is black and has a little V in white on it. If the backlight is gone this component tends to have a burnt hole right in the middle.
I always need a microscope but if you have mega good eye sight you should find it. Hope this helps!

Solution in the attachment. Other fuse with letter "V" in lower left corner protects vibrator.

Hey You
Thankssssss Thanks and Thanks
i make a jumper and all working thankkssssssss
you have paypal?

jowiistyle said:
Thankssssss Thanks and Thanks
i make a jumper and all working thankkssssssss
you have paypal?
Click to expand...
Click to collapse
Hi
You're welcome. I'm glad it worked.
Yes I do have paypal but thanks is enough for me.

mietek190 said:
Solution in the attachment. Other fuse with letter "V" in lower left corner protects vibrator.
Click to expand...
Click to collapse
jowiistyle said:
Thankssssss Thanks and Thanks
i make a jumper and all working thankkssssssss
you have paypal?
Click to expand...
Click to collapse
Do you happen to know how to fix a Xperia Z3 Compact with a similar issue?
I replaced the screen on my Xperia Z3 Compact and now when I turn it on nothing shows up no image and no backlight. But I can hear that the phone is working. Touchscreen makes clicking noise, and vibrator motor makes noise when clicking home button.
How can I make a jumper?

I have this prob too after replacing screen. First, the phone would work only if the the two final screws holding the assembly weren't screwed in. Now it doesn't work at all.

sent here from a member from another thread~
Sorry - but I was sent to this thread from a member in a reply to a thread I posted last week - they said I might have a better chance at finding answers here.
Here's my question (copy/pasted):
Hello, please forgive me if this is not the appropriate place or generally not the correct type of question to ask, I am new here & was directed to this site from my former trainer as a means of educating myself on the problems I am facing..
Let me first say that I am new to micro soldering, and have only been a certified micro solderer for a few weeks now.
I work for a privately owned company of mobile technicians and I am the sole solderer on staff. My company paid for my training and I would say I have a fairly decent grasp on general soldering repairs.
That being said, I am facing some big issues with backlight repairs. I have been successful in replacing components that have been obviously damaged or missing, but when all responsible components are seemingly in place & in working order - as far as I can see under the microscope - I cannot figure out how to diagnose which of these components has failed to communicate with it's sisters.
I have read a great deal online about jumping components, but I am really very much as a loss as to how I am supposed to be able to figure out which one(s) of these to jump or how to tell if they are in need of replacement - when no physical damage is present.
Any and all help in this area is welcome - I would really love it if I could get a better handle on these types of repairs.
If this topic already exists somewhere, or there is another place I should be looking - point me in that direction & I will follow.
Thanks~

Xperia z1s
mietek190 said:
Solution in the attachment. Other fuse with letter "V" in lower left corner protects vibrator.
Click to expand...
Click to collapse
Would you happen to know the location of the xperia Z1S backlight fuse also?

Hi there,
I have done lots of cellphone repairs and I know my things about smd soldering.
To answer your question : Will just bridging the connection cause any damage?
The answer is yes and no. By bridging the resistor you won't damage the Phone but the only thing you are doing is taking a safety measure out of the circuit. Next time there is a problem in that bridged circuit there will be no fuse more to blow out and the damage will be done to an other component in that circuit, most likely the power management IC, and those are way harder and have a much more higher fail rate in replacement.
So if you can find a replacement resistor on Ebay i suggest you buy it and replace the broken one. When replacements are not sold, we allways try to take them of another damaged motherboard we have laying around.
If those 2 options are not possible, bridging will be the only solution.
Grtz...
Acryllium

I need help. I have xperia Z2 and backlight in not working. I see two techniques how to repair but i don't know wich can I use. Please help. Thanks