LG G4 (LGH815) - no sound at all - G4 Q&A, Help & Troubleshooting

Hey guys,
trying to fix this LG G4 which has problems with sound. There is no sound at all...
Tried to factory reset but that didnt help, even re-installed stock rom with LG Bridge in Download mode using the "software update error" method.
The bootloader is unlocked if that matters..
Important info: After factory reset the volume is at ~50% .. i can turn it up and down (but no sound) but when you turn off the volume completeley and turn it back up it starts to hang and system crashes (force close "system" and the ui restarts).
Even over the headphones there is no sound.
Any ideas? How can i return it to 100% stock (relock bootloader and flash EVERYTHING including the bootloader n ****?)

nobody have an idea? I dont think its the hardware - even headphones give no sound at all...
MAYBE if its hardware then it must be the sound chip itself.. but the phone looks pristine

zroice said:
nobody have an idea? I dont think its the hardware - even headphones give no sound at all...
MAYBE if its hardware then it must be the sound chip itself.. but the phone looks pristine
Click to expand...
Click to collapse
If the issue persists after a factory reset and reflashing the stock ROM, it can't be anything other than hardware, sorry.

El Presidente81 said:
If the issue persists after a factory reset and reflashing the stock ROM, it can't be anything other than hardware, sorry.
Click to expand...
Click to collapse
It actually is/was hardware related:
After flashing it for the 100th time without a difference (no sound, logcat reporting /proc/asound is missing) I figured it has to be the audio chip. So I teared it up again (luckily i didnt put the screws back in yet) I used my heating gun to heat up the audio chip and put everything together again. AND... tadaa there was sound!
It went away after the first boot though - so i gave it some extra heat. =)
now it seems stable so far...

aaand its gone ... again

so after heating it up some more audio is back for good - lets hope this lasts.
For those who are also affected:
The audio chip is the small black chip in the top right corner on the upper side of board. It seems that there is a small battery close to it - at least it looks like one. Be careful not to heat up the battery too much.

Related

big problem, my phone is haunted by a ghost headset!

So my dash has worked great for the 4 years of its life that I have had it with minor hiccups. This new one has me stumped though...
The phone seems to think it has a headset connected to the device when there is no headset connected. This "ghost" headset is preventing me from making/receiving calls; what is a phone that cannot function as a phone?
I am running an older version of EVO's ROM (havn't had access to a cord to try flashing to the new version because I am on holiday) but I have tried a hard restart and that did not work.
here is the quirky part... Sometimes if I reboot the phone it goes away, briefly. It may go away for a few min or it may only go away for a few seconds after the boot. If I reboot and it turns off, then I try calling someone really quick, the ghost may come mid call and essentially drop me because I can neither hear nor speak anymore.
My gut says its a hardware problem but I wanted to get some other opinions before I start opening things up.
Thanks in advance.
what happens when you do connect your headset? it seems like a hardware problem..
never have had a headset, whether bluetooth or physical... thus I am scratching my head even more...
*knock on wood*
I managed to find a usb cable and I hooked it up to my computer. The few restarts while connected to my computer in the effort of updating the rom seemed to make it stop. I am wondering if maybe the SDA unlock may have done the trick? None the less I was a version behind on my ROMs so I update to the latest EVO ROM and seems to be smooth sailing.
well, i woke up this morning with an error on my phone that went away after i accidentally hit the w/e button only to notice the ghost headset was back... will try to find the error but suggestions are still welcome...
a hard reset with last 3VO's ROM may work
tried that, it booted up with the headset icon on the top lol
JHaste said:
tried that, it booted up with the headset icon on the top lol
Click to expand...
Click to collapse
So definitely is hardware for sure huh,
gmaniac2008 said:
So definitely is hardware for sure huh,
Click to expand...
Click to collapse
JHaste,
Lets forget testing a phone with a custom ROM, go back to your stock and see if happens?
Also in this process flash stock & hard-reset... & install nothing
Now if all is fine you have a clean base for custom ROM NAND flash has issues and can have residual stuff left from flashing to which is why i say flash stock etc.....
Good luck
stylez said:
JHaste,
Lets forget testing a phone with a custom ROM, go back to your stock and see if happens?
Also in this process flash stock & hard-reset... & install nothing
Now if all is fine you have a clean base for custom ROM NAND flash has issues and can have residual stuff left from flashing to which is why i say flash stock etc.....
Good luck
Click to expand...
Click to collapse
good idea.. I agree
check switch of headset jark and phone headset slot they may be damaged.

Bad sound from headphones

The sound from my z1c through headphone jack sounds really hollow, almost like you listen to music underwater. This problem occured today for me, at first I thought i had broken the cable from my headphones but it sounds fine when I plug it in other devices. Both left and right work but it just sounds really bad, the volume of the sound went down quiet a bit aswell.
Anybody has any clue what i can do to fix this? Would a factory reset do the trick or is this a hardware problem?
Help is much appreciated!
BZyno said:
Help is much appreciated!
Click to expand...
Click to collapse
Did this just suddenly occur or will we find out in a few posts you've installed or removed something that may have caused it? A factory reset is always worth trying as that should clear up if it's hardware or not.
XperienceD said:
Did this just suddenly occur or will we find out in a few posts you've installed or removed something that may have caused it? A factory reset is always worth trying as that should clear up if it's hardware or not.
Click to expand...
Click to collapse
I havent removed anything from my device for a while, no custom roms or rooting either. Ill try reseting when I have time for it.
hollow sound
Did you turn on clear audio+? Try turning it off.
Or did you change equalizer settings? Set it to none/flat.
eumanoid said:
Did you turn on clear audio+? Try turning it off.
Or did you change equalizer settings? Set it to none/flat.
Click to expand...
Click to collapse
After it happened ive tried turning clear audio on and off and changing the equalizer a bit, nothing works sadly. Im afraid that the audio jack is somehow damaged or something because the spreaker sound sounds fine. Im gonna try to factory reset my device tomorrow but I think it will probably not work. Probably have to send it in for repair sadly...
repair
So sad to hear that. Good luck bro.
Factory resetting my phone didn't work, have to send it in for repair sadly
This can happen if you don't fully plug the speakers in. Sometimes it's because there is dust inside. You might try, very careful, to clean it with a wooden/plastic toothpick.
Did you get this fixed?
Same exact thing just happened to my Z1 Compact
Edit: LOL, just found out the cable from my BW P5´s were broken. I was fooled by the louder sound from my PC (when coming directly from the phone). But after using the headphones on the PC for a while, I switched the cable. All OK now
Anyways, at least I had a good reason to join this awesome forum!

Headphone jack problem

Hello.
i have problem with my d855. when i connect my headphone i get really disturbing deep sound when i press navbar buttons and some parts of windows and listening music. If i dont touch enaything for 5 seconds the sound disappear. the interesting side of it after 2 or 3 hours without connect headphone, it just fix itselfs and when i restart the phone problem occur again. i have changed l'ke 10 rom in these two days and all of them have same problem i have tried mm roms, stock, lollipop even back to stock with kdz but i have the same problem everywhere but twrp menu.
Please lead me about that problem. It must be hardware issue but i dont understand how that is just disappear and not in twrp.
mabs123 said:
Hello.
i have problem with my d855. when i connect my headphone i get really disturbing deep sound when i press navbar buttons and some parts of windows and listening music. If i dont touch enaything for 5 seconds the sound disappear. the interesting side of it after 2 or 3 hours without connect headphone, it just fix itselfs and when i restart the phone problem occur again. i have changed l'ke 10 rom in these two days and all of them have same problem i have tried mm roms, stock, lollipop even back to stock with kdz but i have the same problem everywhere but twrp menu.
Please lead me about that problem. It must be hardware issue but i dont understand how that is just disappear and not in twrp.
Click to expand...
Click to collapse
Hi,
yeah I think that LG messed up the construction of the D855-headphone connection. Maybe the jack isn't grounded correctly, or the driver is written totally bad.
There are a few ways to "solve" this issue, but i don't think anything of that will completely remove this. In my opinion, it's a hardware-design related bug.
What some people do, is plugging out the headphones, making a call, and replugging the headphones. See here: http://forum.xda-developers.com/showpost.php?p=54985854&postcount=91
A hopefully better solution might be modifying the mixer_paths.xml in /system/etc. I'm using it too - for this, take a look here http://forum.xda-developers.com/showpost.php?p=59601465&postcount=150
Maybe Viper4Android has the ability to reduce the problems, but I didn't tested it...
you are life saver. I did the second methot it minimize the sound but the first one totaly remove it. thank you sir.

Camera not working, freezes the whole phone and makes it restart each time I open it

I have LGG3 D855 MM stock rom, before I've had fulmics rom and that's when the problem started happening, figured a clean wipe and going back to stock rom would solve the issue but it didn't.
Flashlight won't work, tried other camera apps but it always fails.
Sometimes the camera starts working for a fraction of a second then it seizes to work and freezes the whole phone making it restart.
Figured it might be a hardware problem, but can a hardware problem with the camera freeze the phone? I don't really know, sorry.
Can anyone please help?
Update 1: Tried re-rooting the device and installing fulmics rom, still no luck, tried installing V10 camera app, nothing new.
Update 2: Front camera works sometimes but the image seems stretched, also it crashes after seconds and goes to black screen then freezes the whole phone sometimes making it restart by itself.
Tried the force stop and clearing cache and data trick in both camera and gallery and still no luck.
sounds like a hardware issue like a bad mainboard or connections loose or something, did the phone get wet? have u checked the camera connections with phone apart?
KronicSkillz said:
sounds like a hardware issue like a bad mainboard or connections loose or something, did the phone get wet? have u checked the camera connections with phone apart?
Click to expand...
Click to collapse
I've actually replaced the rear camera but am still having the same problem only without the phone restarting, maybe it's a problem with some wiring I guess? Any suggestions please?
Also, the phone never got wet.

Question phone wont turn on, need help

i was playing a mobile game that has high graphics, when my phone started to showing network private dns not being found error message. also started having a bit of wifi issues, had to reboot to fix it
5min later screen freezes during gameplay and turns black. couldn't do anything. i had to reboot it, but the same thing kept happening over and over again for while. until the last reboot, above the poco logo boot-screen a thick static line showed up and instead of going into the homescreen it stayed black.
can't seem to charge it either, when i connect a usb i don't hear any sounds. what happened? why is this happening
P.S. battery was still high if this needs to be known info, was wired to my pc. also didn't do any updates either.
edit: there are times i hear the boot up jingle when pressing powerbutton, but thats it
edit 2: can connect with usb (hear jingle), but screen is still black
but can you reboot to recovery or bootloader, by holding the right buttons when rebooting. (recovery power + volume up. release power when screen on. bootloader same story but volume down).
The usb port and the display cable are really close to each other. maybe because you kept the usb plugged in while gaming, you created some sort of movement and partly disconnected the display cable.
maybe just maybe your screen going bad because over heat try to call your phone if you could hear the sound yep sounds like your get bad screen and need replacement
feel2death said:
maybe just maybe your screen going bad because over heat try to call your phone if you could hear the sound yep sounds like your get bad screen and need replacement
Click to expand...
Click to collapse
now it doesn't want to boot up anymore
blackgear said:
but can you reboot to recovery or bootloader, by holding the right buttons when rebooting. (recovery power + volume up. release power when screen on. bootloader same story but volume down).
The usb port and the display cable are really close to each other. maybe because you kept the usb plugged in while gaming, you created some sort of movement and partly disconnected the display cable.
Click to expand...
Click to collapse
now it doesn't want to boot up anymore, what does this mean?
testask123 said:
now it doesn't want to boot up anymore, what does this mean?
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Click to collapse
Means hardware issue - take it to service center obviously.
I'm almost 100% sure it isnot software
Rstment ^m^ said:
Means hardware issue - take it to service center obviously.
I'm almost 100% sure it isnot software
Click to expand...
Click to collapse
i heard that the f3 has overheating issues, is this true?
i still have my warranty, can i use it to fix this issue for free
testask123 said:
i heard that the f3 has overheating issues, is this true?
i still have my warranty, can i use it to fix this issue for free
Click to expand...
Click to collapse
It does - phone is garbage imo. Unless u lucked out and got unlocked version of GPU ( Search konabess 870 ) I'd probably sell it / swap it for some 865 device.
Something like mi 10t pro can do 20hours screen on time with right tweaks
First take it for repair - this is hardware issue that they need to fix under Warranty - then figure out what you wanna do with it
it happen to me when trying some pixel oriented roms. the phone itself can charge but the screen always dark, you might be able to feel slight warn on the back. yes its hardware and I change the whole motherboard freely on xiaomi service center
testask123 said:
i was playing a mobile game that has high graphics, when my phone started to showing network private dns not being found error message. also started having a bit of wifi issues, had to reboot to fix it
5min later screen freezes during gameplay and turns black. couldn't do anything. i had to reboot it, but the same thing kept happening over and over again for while. until the last reboot, above the poco logo boot-screen a thick static line showed up and instead of going into the homescreen it stayed black.
can't seem to charge it either, when i connect a usb i don't hear any sounds. what happened? why is this happening
P.S. battery was still high if this needs to be known info, was wired to my pc. also didn't do any updates either.
edit: there are times i hear the boot up jingle when pressing powerbutton, but thats it
edit 2: can connect with usb (hear jingle), but screen is still black
Click to expand...
Click to collapse
if it doesnt turn on anymore that could be becuz of overheating were you using performance mode? if you hear a sound and/or if you can go into recovery its likely the screen has been damaged or its the display port or ribbon
RDNRHM said:
if it doesnt turn on anymore that could be becuz of overheating were you using performance mode? if you hear a sound and/or if you can go into recovery its likely the screen has been damaged or its the display port or ribbon
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Click to collapse
well it doesn't turn on anymore, very rarely i feel it vibrate so i guess hardware issue?
i was playing on normal mode, didn't switch anything.
also if the motherboard is fried, does that mean my data is losted
testask123 said:
well it doesn't turn on anymore, very rarely i feel it vibrate so i guess hardware issue?
i was playing on normal mode, didn't switch anything.
also if the motherboard is fried, does that mean my data is losted
Click to expand...
Click to collapse
if you feel it vibrate then its probably the screen better take it to a repair shop if you have warranty but dont let them give you a new phone or you'll lose your data
tell them to keep your data
what if its hardware? is my data gone?
depends on the part of the phone if its the motherboard your data is likely to not be restored by the average repair shop
RDNRHM said:
depends on the part of the phone if its the motherboard your data is likely to not be restored by the average repair shop
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Click to collapse
its going to be send to a xiaomi repair center according to the seller since i have warranty, are they going to save my data? are they known to do that?

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