Mircrophone going haywire - Nexus 7 Q&A, Help & Troubleshooting

I know this has been discussed before but I am also having issues with my Nexus 7 2012 Wi-Fi microphone and they do not appear to be connected to an (obvious) hardware issue. I had this issue some months ago when I had upgraded it to Lollipop OTA (5.0.2 to 5.1.1 turned to be completely slow and buggy messes for me, but I digress). The mic suddenly stopped working and no app could hear me when I spoke so I handed it in for a warranty repair (lucky me, it was on the last day before my warranty expired after 2 years!). I got the tablet back after a fortnight and the mic was working absolutely fine. Seeing as how my warranty had now expired, I decided to unlock my tablet (via Nexus Root Toolkit) and install good old smooth-running 4.4.4 on it. I had no issues for a lot of time, but recently I decided to flash 5.1.1 on it, just to see if it's usable on it. Of course, it was a lot slower than KitKat but before I got around to flashing it back, I realized my mic had stopped working again! Restoring my backup of 4.4.4 had no effect on the microphone so I took drastic measures and reflashed everything with Root Toolkit. The microphone actually started working after flashing 4.4.4 (I think the bootloader was involved as well) and then I restored my backup of the same Android version and the microphone kept on working. After a day or two it stopped again! I thought I had messed it up by using Xposed Framework (I had updated some modules on it) and I went over the same procedure again, seeing as how factory resets and backups had no effect whatsoever. After reflashing and restoring my backup I decided not to do anything with the tablet. The mic was working but... it stopped again, for no good reason a day later. The only thing that seems to (temporarily) fix it is reflashing KitKat in the Toolkit. I even tried disassembling the tablet and unhooking the mic module and putting it back in but to no avail.
I think it's a software related issue, seeing as how a simple reflash fixes the microphone but then it stops working again. Attempting to mess with it on the hardware side does nothing. Anyone else experienced the same problem? Anyone found a permanent fix for it? It kind of my makes my tablet unusable on day-to-day basis, since I use Skype and whatnot on it.
Thanks in advance!

Related

[Q] Strange screen issue with reboots

Hi.
I'm new to Nexus 7 and after a short time using it I began experiencing some strange issue with the it. While surfing the web over WiFi (note that I'm using the first Nexus 7 with WiFi only) after a short time glitching lines appear on the screen (as shown on the image attached) and some loud white noise coming from the speaker. It's stuck like this for about 30 seconds and then reboots. After reboot, everything seems normal, till it comes again. It takes 15-30 minutes of surfing and I believe the time depends on the intensity of surfing. Seems like WiFi modem somehow affects the GFX driver.
Note that I was first running android 4.1.1 and recently updated to 4.2. Updated didn't fix the problem. I've rooted the device with "Nexus 7 root toolkit v.1.5". Note sure if the rooting affected it somehow, as I rooted the device on second or third day of use.
Anyone have an idea of what could be wrong or how I might fix it? Or it's HW issue and I should turn it to Google?
Thanks!
So I'm the first and only one with such problem???:silly:
I could be wrong here but that seems like more of a hardware(warranty) kind of issue. However, I had the speaker issue after flashing a custom ROM (sparks linario 4.2.1) and I had the speaker issue (along with a host of other bugs buts that's beside the point). I flashed stock and unrooted and the problem was fixed... I know it might not help your case but I thought ide let you know. Its possible the toolkit caused the issues and flashing back to stock and rooting with another method may solve your issue (that's what I would try). But if you end up sending it in under warranty for god sakes, unroot and relock your bootloader first! Otherwise Google probably won't honor your warranty.
Good luck friend.
Sent from my Nexus 7 using xda app-developers app

[Q] No mic/earpiece in calls

Situation
Bought Nexus 4 refurbished, works great except for this issue. Back speaker works great, Google Search works with mic (Ok Google). Updated via OTA all the way to 5.0. Am using phone on a carrier in Ecuador.
Problem
When making a phone call over the local carrier, call connects (you can see the counter on screen), music, if playing, pauses as it should. But no audio from the earpiece, and the other side does not hear anything from my side. Tried putting call on speaker, nothing. Tried with headphones, nothing. However, when making a Hangouts call over data, mic/earpiece work fine. To me, this means the hardware functions, so it must be software related. The phone sends SMS without issue, so it works with the local carrier. Also data works without any issue.
What I've done so far
Searched high and low, and it seems this is a somewhat common problem that some have fixed in many different ways. Please let me know if you know of another that I may have missed.
Downgrading to 4.4.4
Upgrading back to 5.0
Factory Reset
Flash 5.0 Factory image
Upgrade to 5.0.1
Flash complete 5.0.1 Factory image
Flashed latest CM11 nightly
Tried several "solutions" found on Google Group forum, such as pluging headphones in and out
Flashed Hybrid modem with included audio fix
Switched SIM cards
Installed SoundAbout, and tried many different options - redirecting Phone Audio, even changing options for Headset detection (thought the phone was confused, thinking the headphones were in)
Tested mic with recording apps and by recording videos, all work fine.
Installed PAC-ROM without Gapps to see if it was the Google Play Services issue
Disabled the CheckInService
I think I've tried more, but can't remember them all. It's been over a week, and can't answer or make phone calls.
Coming to my wits end, and it's extremely frustrating since it doesn't seem to be a hardware issue, and I hate giving up on something I can fix. Any suggestions?
(Edited and added a couple more tests to the list)
yep, you are not the only one with this issue, it started to plague users just recently, including me and from what i've learned so far it has got something to do with google play services.
however for me, flashing 5.0/5.0.1 resolved it (i only encountered it on CM4.4.4 )
here is another topic bout this. good luck
http://forum.xda-developers.com/nexus-4/help/audio-call-nexus-4-cm11-t2924589
ps. this thread i linked above acutally contains some solution/workaround involving disabling one of the google play services. just read through the whole thread
If this is really about Google Services, try installing a ROM without adding GApps. You can then state if they are really the culprit here.
I too had the exact same problem. I was on CM 4.4.4 nightlies. Moving to stock lollipop5.0 solved the problem.
Shooting Star Max said:
If this is really about Google Services, try installing a ROM without adding GApps. You can then state if they are really the culprit here.
Click to expand...
Click to collapse
I tried that too. I installed PAC-ROM, the latest nightly, without GAPPS. Booted fine, all seems to be working except sound in calls.
I also tried disabling the CheckIn Service, as was mentioned in the other thread, still no luck. So frustrating!!
I'll try them all again...
HijoProdigo,
+1 on flashing a 5.0 ROM.
Same thing happened to me a couple of weeks back. After messing with the phone for three days, flashing a Lollipop ROM solved the issue (I used CM12 unofficial nightlies)
BitteredBro said:
HijoProdigo,
+1 on flashing a 5.0 ROM.
Same thing happened to me a couple of weeks back. After messing with the phone for three days, flashing a Lollipop ROM solved the issue (I used CM12 unofficial nightlies)
Click to expand...
Click to collapse
I'll give it a try. I had tried with the official CM11, both with and without Gapps, but no luck.

Gyro and Accelerometer Stop Working

I've seen this reported many times, but have never seen a solid fix for it. I've had my S5 for over a year, been on Marshmallow since it could be installed with Smartswitch, and have had no problems. I first noticed things were off when youtube would no longer rotate, so I started my device. For the first time since I've updated, android told me I was on Custom firmware (On S5 startup Screen) I was rooted previously in Lollipop, but have not seen this before a few days ago, and haven't anymore. Sometimes with restarting the device or clearing the cache rotation will comeback and the sensor app I have downloaded will show they work, but a lot of times after either it wont. I have not tried resetting the phone yet, for lack of time of backing up files, but any input would be great here. I can give any information that is needed.
@OP:
I have had the exact same issue for about a month now. I was running stock Marshmallow 6.0.1 when this started happening. A few days prior I updated from Lollipop and rooted my device, so I thought that might be the issue. In my attempts to solve it, I unrooted the phone, rolled back to stock Lollipop, and even installed CM13, all the while factory-resetting and clearing the cache. Nothing worked so far, and my sensors still "freeze" after a while, until the next time I restart the phone. Meaning it's likely a hardware issue, albeit a very weird one. At least I got CM13 now, which is just so much better than TouchWiz
faurionutz said:
It's hardware problem my friend, I fixed mine by reheating gyro ic
Click to expand...
Click to collapse
That... seems like a good idea, actually. Care to link a guide on how to do that? And did it solve the issue permanently?
faurionutz said:
it's hard to dissasembly this model.by your on, search on youtube for instruction
Trimis de pe al meu SM-G920F folosind Tapatalk
Click to expand...
Click to collapse
Disassembly aside, how do you do the actual reheating/reflow? With a soldering iron? Or did you just stick the whole motherboard into an oven?
I've found guides for taking the S5 apart, but not for reflowing its parts.

Nexus 6p freezing a lot

I enrolled to beta programa like 3 weeks ago and everything was just fine, but yesterday after some apps updated the phone started freezing a lot, all the apps started crashing especially WhatsApp and Instagram, when I unlock the phone it takes like 5 seconds, also a lot of times when I go to the home screen after writing something, the keyboard stays on screen and it doesnt hides, I dont know what is happening, if someone could help me I would thank it a lot.
Juandos23 said:
I enrolled to beta programa like 3 weeks ago and everything was just fine, but yesterday after some apps updated the phone started freezing a lot, all the apps started crashing especially WhatsApp and Instagram, when I unlock the phone it takes like 5 seconds, also a lot of times when I go to the home screen after writing something, the keyboard stays on screen and it doesnt hides, I dont know what is happening, if someone could help me I would thank it a lot.
Click to expand...
Click to collapse
Don't mean to scare you, but that is exactly what was happening to me right before going into an unrecoverable bootloop. Nothing I tried revived the device, although there have been some that have been able to. I ended up RMA'ing my device as nothing I did brought it back to life. You might be in a different situation but just giving you a heads up.
*Bump*
Stock 7.1.1 and rooted here. I've been on the official 7.1.1 release for our 6P's since early December, and for the past week or so, I've been experiencing freezing as well. I'd be in the middle of typing in Hangouts, streaming music in the car via bluetooth and Spotify, or just waking the phone up from sleep. For the past few days, I've been getting 3-4 freezes per day.
On rare occasions, I've left the phone alone to settle, and it returns to normal, but more times than not, a hard reset is the only 'fix'; until the next freeze.
I reluctantly wiped the phone, unrooted, flashed stock 7.1.1 and re-rooted all via NRT last night. The phone froze again this morning coming off the charger...
Granted, it decided to restore 528mb's worth of WhatsApp history as soon as I unplugged it (why it didn't restore on charger overnight is beyond me though). Will update if it freezes again.
The phone runs butter smooth with zero issues other than these freezing occurrences though. MO, the 6P is the best all-rounded phone currently available, even if it's a year old already.
Appreciate any help or suggestions!!
That's odd try ex kernel and over clock or try HEBF manager on play store
Quick update. Couldn't bear the multiple freezes per day, so I called Google to ask for help. Apparently I've done everything I can on my end (including a factory reset and updating to the latest firmware), so they sent out a replacement 6P to me free of charge. They'll also be covering the courier/shipping costs for my old 6P too. Fantastic customer service. Kudos to them!! I called them Tuesday morning (20th Dec) Australian time, and received my replacement 6P Friday afternoon (23rd Dec). Very quick indeed
Half a day after setting up my replacement 6P, including updating to 7.1.1, I started getting the same symptoms as my old 6P. Freezing, unresponsiveness, etc. Persisted for another day and had enough. I've since done a full wipe and downgraded back to the final 6.0.1 release, and it's been stable as a rock for 3 days now. No freezes, lagginess, nothing.
So I deduce it might actually be a software issue with 7.1.1, and not a hardware problem. It appears a growing number of Pixel and Pixel XL users are also experiencing random freezes on their new phones running 7.1.1 too...
Looks like I'll stick with 6.0.1 until Google makes a formal announcement and something is done about 7.1.1. I've missed Xposed and GravityBox too, so 6.0.1 is all good. Most importantly, it's stable
Had you ever tried booting into safe mode to see if maybe an app was causing the issue? Maybe a compatibility issue between an installed app(s) and 7.1.1
redduc900 said:
Had you ever tried booting into safe mode to see if maybe an app was causing the issue? Maybe a compatibility issue between an installed app(s) and 7.1.1
Click to expand...
Click to collapse
Thanks for the pro tip. I did consider doing that with the replacement 6P, but the only apps that I had installed were the stock Google ones that came with 7.1.1, WhatsApp, Facebook, Twitter, Instagram and SwiftKey. I just assumed if such popular apps were the cause, a lot more people would have pinpointed them as the problem?
I did however read a few users claiming SwiftKey to be the culprit prior to RMA'ing my old device, but even after uninstalling that from my old phone, I was still getting the freezing issues.

Audio Crashing

I apologize if this ends up being long winded, I want to lay out all the details.
So I recently purchased (what I had believed to be) second hand Nexus 6P. It is in perfect physical condition however, no signs of ever being used. Battery is great, performance is great, speakers are great, camera amazing, and screen is perfect. However two odd things started to occur which I believe stems from the same issue. When hanging up phone calls the hanging up process would hang for a long while and either eventually hang up or the system would soft reboot. After reboot notifications are still set to priority only "call management", although it is easy to adjust and bring it out of that. However no audio/mic works at all (Play Music and YouTube give an error that they cannot play). No audio from speaker, or from headphone jack. I could however connect to a Bluetooth speaker and audio plays just fine. I then went to do a proper shutdown of the phone (using the power button menu), and when I manually booted it back up all audio works find again. I plug in headphones and start listening to music on Play Music. After a while however, playback fails and all the audio on the phone is once again dead...queue soft reboot. And repeat the whole process again. If I'm listening to headphones and I do anything to activate the microphone, audio crashes and go through the whole process again.
So I decided to make sure it was all up to date all the way to OTA 7.1.2. Once I did and I tested, the same issues above occurred over time. So then I thought maybe if I used Nexus Root Toolkit and did a full manual wipe and reinstall of 7.1.2 factory image from Google. Phone issue initially went away, but audio playback through headphones persisted and eventually the phone issue manifested itself again.
Today I decided that I do a full wipe again and try and install Pure Nexus 7.1.2, non rooted with BeanGapps and vender image (following the entire process here to a T.) I have not been able to replicate phone issues, however the audio playback and headphones issues are easily repeatable.
TL;DR - So this leaves me with a few things;
1. I can use the phone by never connecting it to external audio source perfectly fine, no problems at all.
2. Phones calls may sometimes get stuck at hanging up, and the result is a crashed audio system.
3. The only way to temporarily solve this issues is to shutdown via holding down lock button and Power-off using the menu that appears. And then manually starting the phone back up again.
So I'm not sure if this is a hardware or software issue. The fact that it persists between full wipes and reinstall of different roms makes me think it to be hardware. Although the temporarily fix of proper shutdown and manually start back up makes me think the OS/Kernal is somehow "clearing a buffer" or something in it's proper shutdown process. Which without doing leads to the audio system being completely down. Therefore on soft/dirty reboots the audio system is still down.
As an added bonus my sim card was a Micro SIM, before I opted to take the scissors to it instead of buying a nano sim. It works (so I thought), it just doesn't fit in the tray quite right. I tested recently with a proper nano sim from a different phone, and everything worked perfect. Then I swapped my franken sim back in and...it worked perfectly fine.
I did search for this issues in previous posts but all I could find was this. The issue (s)he describes is exactly the same issue as me, but his/her solution does not seemed to have worked. I am inclined to try doing a full wipe again and flashing completely stock older version though.
Any help, suggestions, etc are greatly appreciated. And thanks to the developers of Pure Nexus, it seems to be very polished and I'd love to use it daily driver.
Since you are having the issue after a clean install of stock and a clean install of Pure Nexus I don't see how it could be anything but a hardware issue. You could try to flash a custom kernel if you really think the kernel is an issue but I doubt that it will do much good. You could also try a clean flash of a different rom (I recommend Dirty Unicorns which is very smooth and stable) but again I doubt that it will do much good since you seem to have a hardware issue. You might have bad memory which is getting cleared when you reboot the phone.
I fear you may be correct. When you talk about bad memory, I don't want to misconstrud what your trying to say. Would there be a buffer for the DAC for example that is bad? Or do you mean the RAM or the flash memory itself?
It is very disappointing. This phone is perfect otherwise. I'd like another 6P, but I am concerned I then get one with battery issues.

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