[Q] Microphone intermittent since screen replacement. - Nexus 4 Q&A, Help & Troubleshooting

Hi all. Had to replace my screen and as Nexus 4 is so old, decided to DIY it. All seemed to go fine, but the microphone wasn't working. Tightened all screws up and it came back to life. Now it's gone again.
It's not like it's entirely broken - I can see the sound graph around the microphone reacting to sounds, but it doesn't seem to be picking up enough volume. I've tried wiggling everything that moves to see if it will bring it back to life but it only occasionally works and quickly seems to go again.
Is it looking like I need a replacement charging board?

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[Q] HTC HD2 weak wifi signal

Hey i installed gingerbread android 2.3.7 on my phone again but this time im getting really weak wifi signals... i'm only 5 feet away from router. It was not like this before so i do not know whats going on ( i only dropped my phone twice)
can you guys help me? is it a software issues or hardware?
happy thanksgiving
I would recommend installing a few different roms (that are known to work with wifi) and see if anything changes/improves.
If nothing improves, maybe flash back to winmo 6.5 and see if wifi improves.
If nothing improves then, you may have damaged your wifi antennae when you dropped it then hit up T-mobile!
Best of luck mate.
Possibly knocked the wifi coax loose from the mainboard. It's pretty easy to open up an HD2 and reattach that cable, I've had mine come loose before and that's what I had to do.
I'd definitely try the steps in the above post first just to make sure it's not a rom or kernel specific issue. And if it's still under warranty, don't bother taking it apart and ruining your warranty, obviously just return it to t-Mobile.
hey can you explain in more detail how to push back the wifi coax cable your talking about
Remove the battery cover, battery, sim card, and sd card.
Remove the 4 torx screws that are under little round stickers under the battery cover.
Using an old credit card or a plastic knife, slide between the screen and the housing to release the little plastic clips one by one which hold the housing to the phone's chassis.
Take your time and be careful not to scratch the housing or stick the card/knife in too far, damaging the fragile stuff inside,
It helps to put a little pressure on the back side of the screen wth your thumb while orying with the credit card (back of screen under battery)
The wifi coaxial cable runs from one corner of the mainboard, up along one side of the chassis, is taped together with some other wires, and leads to another small board up near the top of the phone.
Check the connections at both ends, making sure they are connected firmly and are in straight.
You might want to unplug them, just to be sure and hear/feel them click into place.
Take your time, set yourself aside a nice little workspace, and if you are unsure of anything, don't hesitate to come back here and ask.
There is a disassembly video here in the HD2 section somewhere, I think it's in HD2 General. It'd be worth it to search for it and watch at least the first part of the video, just to get an idea what you're dealing with. It's not a very hard job, it should take you like maybe an hour/hour and a half start to finish.
This will void your warranty permanently though.
Thank you sir i just followed the steps you did and it fixed the problem my wifi works fine but now i have another issue....
i dont know if i touched something or disconnected something in the process but my sound, vibration and volume button does not work. External speaker is not playing any sound (no music or key button taps) and no sound is made when placing a phone call BUT the other person on the end can hear me just fine so i'm guessing i might of disconnected like the speaker. ( my assumption)
thanks again for your help
Oh and when a call is being placed or recieved the screen automatically turns off and it becomes non responsive i.e if i take my phone off the ear and want to put it on hold the screen is still black instead of turning back on
The screen going black during a call is a pretty common problem with the HD2, and is likely not related to disassembling your phone as long as the screen functions normally otherwise. Since you didn't take your phone far enough apart to affect the light/proximity sensor, I can't imagine how disassembly would have affected it. You would have to take the mainboard and screen out from the chassis to get to that sensor.
The volume problem on the other hand, is probably due to either your volume rocker not being placed correctly during re-assembly, or the speaker contacts not being aligned properly. You'll have to take it back apart and ivestigate what went wrong.
Try going into Settings/Sound, and checking that the volume is not turned all the way down. If the volume is not all the way down, then you should be able to hear sound, so your speaker is probably not aligned properly.
Does your volume rocker feel different than before? If it doesn't make a definite 'click' when you press it, then it is probably slightly out of place. Also look for any wires that could have been pinched and damaged when you snapped your phone back together.
What is a volume rocker? When i start the phone it usually vibrates once then goes through the starting procoess. Now it doesn't vibrate at all. Phone turns on and i click the volume button up and nothing happens. I checked settings and everything is up
I have the phone opened as we speak and the reciever cable is connected and the vibrator cable is connected too. I tried to use tweezers to see if i can unhook it but their on too tight so thats a good thing. The two orange dots on the volume thing.. the bottom on was slightly off so i put i centered it
Still nothing works. no vibrating no sound ( the person on the other line can hear me but i can't hear anything) but the phone works great.
Im so confused
The volume rocker is the button that 'rocks' back and forth to control the volume.
It has to be positioned right in order to push the contacts that lie beneath it.
Since your phone's apart right now, what happens when you hold the battery in it with one hand, boot it up, and press the volume button contacts manually? If they buttons themselves do nothing, then it must be that they lost their connection somewhere, you'd have to trace the wires and figure out where they're not connected. If they do work, then the volume rocker was just misaligned.
As for the speaker, it has to be that it is not contacting the two little contacts correctly. Look at the speaker and make sure it is sitting correctly in the housing, and look ffor any obstructions near the vibrator motor.
No i can't press down on the volume button ever since i opened it it hasn't fit back right. Doesn't make a click sound
and what contacts on the speaker should i be looking for? are they under the speaker itself? should i remove the speaker? Theres no destruction on the vibrator its looks though like its sitting kinda tight between that camera flash being there..the metal spinning thing on the end of it can spin 360 so nothing its preventing it from moving.
I also can use my headset and the sound and call works fine besides the going to the black screen and not responding. i also noticed my camera does not load up either. but that could probably be solved with a clean install of gingerbread nand rom

Having a few problems.

Got my Nexus 7 a few weeks ago...
Here's my problems:
Rear casing creeks on the right hand side of the device (where the buttons are) but only slightly,
Lower half of the touch screen stops responding sometimes,
After exiting a game or app it takes me to the far left home screen instead of the middle one,
It has stopped rotating for some reason (probably an easy fix),
Sometimes there is the odd screen glitch, like flashing of lines across the screen for a split second,
And there is some white noise when headphones are plugged in. And i would have expected slightly better audio clarity, but its fine.
Other than that its great! The novelty of a tablet hasn't worn off yet
My tablet is running the stock JB and is not modified in anyway.
Maybe somebody could help me with some of these problems?
Thanks
To be quite honest mate, I would send it back with that many faults!
I've only got a bit of screen flicker and I'm still temped to send mine back.
Back to what you asked, you could take the back off and tighten a few of the screws up inside. (Theres a thread on here about it). But for the other ones, I don't think there are any quick fixes.
Glad your still enjoying it, personally I still can't put mine down after a month
Still having them problems, but they aren't that bad. Still using my Nexus 7 all the time.
If I open the device, won't that void the warranty?
Thanks

Replaced screen/digitizer, screen goes dark when making a call & earpiece is silent

Replaced screen/digitizer, screen goes dark when making a call & earpiece is silent
So as the title says, I cracked my digitizer 2 weeks ago on vacation and finally got around to replacing it. Having done so, everything works great, all touches register, wifi/lte/texting, no problem. Had to make a phone call today and came upon the issue that the screen goes black and nothing will bring it back. My microphone works but my earpiece (speaker) does not. Once the other party hangs up, hitting the power button brings the screen up like it was sleeping.
As I've gathered from other threads, I'm going to have to tear it down again and make sure the proximity sensor is properly set up and check my cable connections for the earpiece.
Is there anything I should look for specifically while I'm back in there? Thanks all - I've only had it for a month and haven't had time to install a recovery...although I think I rooted it. Don't even remember! But first things first.

Loudspeaker not working after replacement of Charging Dock

Guys, I bought and replaced the charging dock from my N9005, because mine got damaged in a tragic accident involving me, the charging cable and the phone itself... Now, after the replacement itself, I have noticed that my loudspeaker does not work at all (missed my alarm this morning, thought I overslept, but I had later on the phone in my hand and it rang... but without sound.
After a bit more tinkering, I have noticed that if I just put the back panel (the one that contains the speaker) on top of the phone and press gently, it works, but if I put in the screws and push it properly, it stops working.. So my option right now is to either leave it flimsy (too flimsy for the back cover to be put on top and still function), or to not have a speaker at all. Any suggestions, what I did wrong, or which one of the two components you guys think might have been the one to break? The new charging dock, which also contains the contacts for it, or the speaker's connection itself? I took as much care as I possibly could when I did it, but still... Help, please?
help?!

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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