Wifi and Bluetooth not working on H901 - T-Mobile LG V10 Q&A, Help & Troubleshooting

The bluetooth and wifi on my H901 stopped working after dropping it on the floor outside (with a case on) and I don't have any idea on how to fix it.
I tried soft, hard, and factory resetting, no luck.
I tried opening up the phone, and putting pressure on the wifi and bluetooth antenna.
I also tried flashing stock nougat KDZ on the phone and it still doesn't work.
Everything else working fine on the phone, please help.
Thank you.

You probably had a cold solder joint. Probably the only way to fix it is with a wave flow soldering station...

runningnak3d said:
You probably had a cold solder joint. Probably the only way to fix it is with a wave flow soldering station...
Click to expand...
Click to collapse
What does that mean lol

It means you need a new main board. Order one off of eBay.

runningnak3d said:
It means you need a new main board. Order one off of eBay.
Click to expand...
Click to collapse
Thanks for the help, anyways do you know where the wifi antenna on the phone is located at?

Related

Volume Problem

Hi, i have some trouble with the volume, when i connect the headphones only the right one works, i have tried another headphones but nothing happend.
I though it was the ear piece, so have tried another one, but still having the same trouble, left headphone sounds really low, i dont know what it is, maybe someone can tell me how to do a real factory reset or maybe format internal SD.
i have tried another roms, RomWipe, rom nuke, kernelwipe but no solutions. im using stock rom now, without root.
if some one can help me that would be great.:good:
Seems likely hardware. If you have changed roms and headphones and gone bk to stock then it must be hardware.
andrewwright said:
Seems likely hardware. If you have changed roms and headphones and gone bk to stock then it must be hardware.
Click to expand...
Click to collapse
any solution?
what if i do internal sd wipe/format?
Replace the jack.
kdacaret said:
any solution?
what if i do internal sd wipe/format?
Click to expand...
Click to collapse
That wont help you mate. Sorry but you have to do what mb has said. Have you cleaned it to see if that works?
kdacaret said:
Hi, i have some trouble with the volume, when i connect the headphones only the right one works, i have tried another headphones but nothing happend.
I though it was the ear piece, so have tried another one, but still having the same trouble, left headphone sounds really low, i dont know what it is, maybe someone can tell me how to do a real factory reset or maybe format internal SD.
i have tried another roms, RomWipe, rom nuke, kernelwipe but no solutions. im using stock rom now, without root.
if some one can help me that would be great.:good:
Click to expand...
Click to collapse
it could be the ear piece socket that has issues.... i hope, because if it's gonna be the phone's hardware. it would be hard to fix....
try this, if you know someone who can disassemble the phone properly then ask that person to do it for you (warranty will be voided). if it is still under warranty then just go back to the place where you bought it. if it isnt, then look for the headset piece. it is a detachable piece from the main board of your phone, you will see pins from the headset socket, if i am not mistaken. if you have a pair of twisers/needle use it to push the copper terminals that connect to your headset jack.... as well push the connector of the headset piece on the board it could be a minor loose, i hope....
BTW did you drop it or not? i will try to post pics for what i have told you if i have spare time ok

Abnormal Sound Output.

Hi. I have a very strange issue on my device.
Whenever i plug in an earphone/Headphone, i can listen to the sounds ONLY from the left earpiece.
I cross checked the earphone with my desktop, laptop and others' phones. It is working perfectly.
I just need to know if this is a software related issue or a hardware issue.
I tried changing my ROM in case the current ROM had problems. Even after changing to a different ROM, the problem persisted.
Any help would be appreciated.
Thank you.
Sounds like a hardware error to me if you are having the issues with different ROMs. Try different headphones. If they don't work it MAY be the jack. But nothing is for sure here. :-/
Behemoth1702 said:
Sounds like a hardware error to me if you are having the issues with different ROMs. Try different headphones. If they don't work it MAY be the jack. But nothing is for sure here. :-/
Click to expand...
Click to collapse
I tried with different headphones too. Problem remains. The jack?
If you have the knowledge, could you share with me what MIGHT have happened? A GUESS?
Sorry,
the jack for me (I'm German) is the hole you stick your headphones into.
Unfortunately after some time and maybe some rough treatment the jack gets damaged. Google "repair headphone jack" and you will find many people with that problem.
If you can not fix the issue by any software and the headphones themselves are working it is most probably a hardware failure on the phone, jack is dislocated/broken a bit.
Google and maybe even repair service is your friend now from what I can tell. :-/
First try to clean the phones jack. Sometimes, garbage gets inside preventing good contact between the earpiece and the phone's jack. Use a toothpick or something (preferably not something metallic) to scrub it and see if it works.
dxppxd said:
First try to clean the phones jack. Sometimes, garbage gets inside preventing good contact between the earpiece and the phone's jack. Use a toothpick or something (preferably not something metallic) to scrub it and see if it works.
Click to expand...
Click to collapse
Thank you. I will try that.
If this doesn't work, can it be solved without getting it to a service center?
Because i have lost my warranty due to physical damage almost 8 months back.
It worked fine till last week, but somehow this started.
supreethms said:
Thank you. I will try that.
If this doesn't work, can it be solved without getting it to a service center?
Because i have lost my warranty due to physical damage almost 8 months back.
It worked fine till last week, but somehow this started.
Click to expand...
Click to collapse
If its not garbage, its hardware damage. You'll need to get it replaced. Luckily, replacing the jack is usually very cheap.
dxppxd said:
If its not garbage, its hardware damage. You'll need to get it replaced. Luckily, replacing the jack is usually very cheap.
Click to expand...
Click to collapse
Thank you for the information.
I really appreciate it.

Bad radio reception

Hello i have a eonon car stereo running android 444 fuse rom i can only pick up 3 stations and they sometimes loose reception ive tried an amplifier and new eariel but with no luck any suggestions would be great.
I'd double check your harness connector to the oem antenna. Their was a pin loose on mine and once I bent the retention tabs back out and reinstalled the connection was much stronger.
Geekybiker said:
I'd double check your harness connector to the oem antenna. Their was a pin loose on mine and once I bent the retention tabs back out and reinstalled the connection was much stronger.
Click to expand...
Click to collapse
Its a Renault Megane and is just a standard connector.
Im now beginning to think its the components on the motherboard as the closer i get to the sauce eg: im from Wigan were Wish FM is broadcast if i drive past the studio its crystal clear same with Key 103 in Manchester. I think the radio chip on these is crap.
I think you need a power injector, because the antenna is active and needs power to work correctly. Just put the power injector between the radio and the antenna and connect the blue cable with the AMP or ANT cable of the radio harness...
Gesendet von meinem D6503 mit Tapatalk
I've had the same issue and solved it fortunately.
My Unit is a Joying RK3188 and came with a defect dual input power injector.
Easy steps to identify: At the output of these injectors (called 'phantomspeisung' in german) you sould measue 12V DC. These 12VDC sent over the 2pol antenna cable are for the antenna built in amplifier.
1st: I replaced the power injector with a diversity injector. Google for "Diversity Adapter 204.086-0) www.rta-online.com
2nd: Additionally to my amplified roof antenna I bought a second amplified antenna at amazon
http://www.amazon.de/Baseline-Conne...enne+AM,FM,+inkl.+Verstärker,+FAKRA-Stecker+F
Both together I've a really good reception now.
The diversity adapater really makes it's job. I is a littel high in price but worth at all.
Try putting some electrical tape around the Motorola male antenna plug at the head unit. What you are trying to accomplish is to insulate the area where the head unit housing may be in close contact with the plug. Takes a few seconds to try.
pounce said:
Try putting some electrical tape around the Motorola male antenna plug at the head unit. What you are trying to accomplish is to insulate the area where the head unit housing may be in close contact with the plug. Takes a few seconds to try.
Click to expand...
Click to collapse
...that's excatly what provided the very worst reception ever to me... So I looked around (tried a lot and spend some bucks on some useless amplifiers) and finally found the solution from my previous post. It works.
markusmuster said:
...that's excatly what provided the very worst reception ever to me... So I looked around (tried a lot and spend some bucks on some useless amplifiers) and finally found the solution from my previous post. It works.
Click to expand...
Click to collapse
If putting insulating tape just around the plug where it would touch the housing (and not where the actual plug needs to mate up) gave you worse reception... you did something wrong.
I was under the impression that these units had issues with the software ( or hardware) or this is what I am told.
See here or am I mistaken?
dazza007 said:
I was under the impression that these units had issues with the software ( or hardware) or this is what I am told.
See here or am I mistaken?
Click to expand...
Click to collapse
Its possible you are mistaken. The OP in this thread didn't provide any hardware specific details. Instead we know only version of android.
My units have no problem with radio reception, but I can simulate a problem if the connector touching the housing and impacting reception.
Other issues are not connecting the power to a stock antenna from the head unit when you install it. Even if you don't have an antenna that goes up and down you can have an amplified antenna. If you don't power it you don't get good reception. it can be something that is missed with wiring up the harness.
Yes, you can also have hardware problems, but its easy to rule out the external issues first before calling the unit the problem.
pounce said:
Its possible you are mistaken. The OP in this thread didn't provide any hardware specific details. Instead we know only version of android.
My units have no problem with radio reception, but I can simulate a problem if the connector touching the housing and impacting reception.
Other issues are not connecting the power to a stock antenna from the head unit when you install it. Even if you don't have an antenna that goes up and down you can have an amplified antenna. If you don't power it you don't get good reception. it can be something that is missed with wiring up the harness.
Yes, you can also have hardware problems, but its easy to rule out the external issues first before calling the unit the problem.
Click to expand...
Click to collapse
When you quote "my units have no problem," what software and hardware do you have in each, which motherboard, radio chip, etc etc
I part of me would like to believe that insulation is a problem here, but guys on the Russian forums have replaced capacitors to improve reception.
dazza007 said:
When you quote "my units have no problem," what software and hardware do you have in each, which motherboard, radio chip, etc etc
I part of me would like to believe that insulation is a problem here, but guys on the Russian forums have replaced capacitors to improve reception.
Click to expand...
Click to collapse
I have Joying units. One of the 10.1" universal units with 3188 and a 7" universal unit with 3188. No idea about the specifics of the chips.
If you have a specific hardware unit that people are complaining about then you may have a problem with that unit from that manufacturer. That's realistic, but try the other tests first before performing surgery.
Problem is most likely a internal problem with the ground of the antenna input. This was the problem with my unit.
http://forum.xda-developers.com/showpost.php?p=55279871&postcount=3266
...
This is great. It really helps illustrate how people are interpret things differently.
You have put too much tape on the connector. You have essentially broken the connection by entirely covering the outer connector. It may not be been obvious to you that a motorola antenna connector needs contact on the pointy post and the outer shell.
What you wanted to do I carefully put just a little tape on the plug where is could touch the case of the unit in a circumstance where the alignment of the female connector inside the case attached to the PCB isn't perfectly centered for the case hole. When things are out of alignment there tends to be a connection between between case and the outer shell of the connector. When these things touch it can negatively impact reception.
Hehe... I made this photos this morning with an unused plug just to illustrate. I know that the connection is broken when insulated and also the it's impossible to work this way.
I also read several threads about that "put some tape on it" thing and heard dozens of interpretations.
A picture tells more than some thousand words.
To clarify that to all of us: Please be so kind and make some photos !
Thanks in advance!
markusmuster said:
Hehe... I made this photos this morning with an unused plug just to illustrate.
Click to expand...
Click to collapse
To illustrate how you did it?
I know that the connection is broken when insulated and also the it's impossible to work this way.
Click to expand...
Click to collapse
So did you do it correctly when you tried it on your unit or are you saying this now to show the mistake and now you understand you need just a little bit of tape like mentioned up thread?
pounce said:
To illustrate how you did it?
So did you do it correctly when you tried it on your unit or are you saying this now to show the mistake and now you understand you need just a little bit of tape like mentioned up thread?
Click to expand...
Click to collapse
You might have a grounding issue if you are having to do that. I believe another member noticed that the outer part of the antenna socket is internally grounded with a little bit of solder and some foil, he had noticed that the foil had become disconnected meaning the outer part of the socket was no longer properly grounded, insulating the plug like you have done would help in that situation, but it isn't the correct fix, regrounding the socket is.
jakejm79 said:
You might have a grounding issue if you are having to do that. I believe another member noticed that the outer part of the antenna socket is internally grounded with a little bit of solder and some foil, he had noticed that the foil had become disconnected meaning the outer part of the socket was no longer properly grounded, insulating the plug like you have done would help in that situation, but it isn't the correct fix, regrounding the socket is.
Click to expand...
Click to collapse
You may have read up thread.
1) Check the connections like power for the antenna if you have that
2) check the plug to see if its contacting the case. Tape as needed.
3) Open the case and validate the connection to the female socket on the PCB.
4) Check your MCU firmware
5) Try another unit
This whole tape thing has me so confused. The outer shell of the Motorola plug has to touch the casing for earthing doesn't it? Yet you are saying to tape up only the bits that are touching the casing.
Totally confused.
Can someone put up a picture of what is the right way to tape it please.
I would have done exactly the same as markusmuster has in the pics.
Thanks

No service after replacing loudspeaker

Hi! I have Sony xperia m4 aqua and I recently changed the Loudspeaker because it had bad sound. When i installed the new speaker and turned the phone back on the sound problem was gone, but I don't have network. It says emergency calls only and I can't call anyone or be called by anyone. Searched a lot on the web but no luck so far. Tried to manually register network from settings-mobile networks-search networks but no result. I changed the sim card, no change. Restarted the phone many times.
Please help!
Maybe you forgot to connect antenna or some connector inside phone during replacing of earphone.?You will need to open again phone to inspect all connectors inside.
valyo_bg said:
Maybe you forgot to connect antenna or some connector inside phone during replacing of earphone.?You will need to open again phone to inspect all connectors inside.
Click to expand...
Click to collapse
There's a a little progress. I opened it again and reatached the signal anthena cable on the downside(which you can reach after removing the loudspeaker). Maybe it got loosen after removing the bad loudspeaker. Turned the phone back on and it found network. But now there's another problem. The strength of the signal is not full and the Wi-Fi isn't there or it founds it for a little bit and then it's gone. So I'm wondering now if this little cable is the problem and should I try to change it.
P.S. Bulgarian too
Maybe you should check WiFi antenna if it's properly connected, inspect visual cable for cracks and etc. If WiFi work fine before changing of loudspeaker, then should work now if everything is good connected. Try to reconnect all connectors inside phone.
valyo_bg said:
Maybe you should check WiFi antenna if it's properly connected, inspect visual cable for cracks and etc. If WiFi work fine before changing of loudspeaker, then should work now if everything is good connected. Try to reconnect all connectors inside phone.
Click to expand...
Click to collapse
Yes it worked fine before changing the loudspeaker. I just opened it again it visually I don't see anything that isn't good connected. The only thing i can think of is maybe this cable
Sony Xperia M4 Aqua Signal Antenna Repair Guide - which is on youtube
could be damaged, but i'm not sure and don't know how could've damaged it. I don't know. If you like i can take a pic and upload it.
Yes, take photo to see if I can help or somebody else with more experience .
valyo_bg said:
Yes, take photo to see if I can help or somebody else with more experience .
Click to expand...
Click to collapse
Here it is (after removed battery and loudspeaker)
You should inspect both coaxial cables connected at left and right. Maybe there are not good connected, try to reseat both of them on both sides to see if this will helps. Use magnify lens (лупа) to inspect cables and connectors more precisely.
valyo_bg said:
you should inspect both coaxial cables connected at left and right. Maybe there are not good connected, try to reseat both of them on both sides to see if this will helps. Use magnify lens (лупа) to inspect cables and connectors more precisely.
Click to expand...
Click to collapse
ok
This is a English based forum. Tiny white cable is for antenna. Check both cable and connectors.
Hi there
My sister phone also get this issue too. Her phone model number is E2353.
But it just suddenly happen yesterday. There's nothing critical activities that she did.
I've already try
1. Toggle the wifi, airplane mode
2. Reboot into safe mode
3. Manually register the network
What's going on with her phone?
knightazura said:
Hi there
My sister phone also get this issue too. Her phone model number is E2353.
But it just suddenly happen yesterday. There's nothing critical activities that she did.
I've already try
1. Toggle the wifi, airplane mode
2. Reboot into safe mode
3. Manually register the network
What's going on with her phone?
Click to expand...
Click to collapse
Did she drop the phone by any chance? Or has she taken it into the water? No matter how much Sony claim their phones to be waterproof, they're never 100% waterproof especially when they get older (the heat from charging/general use loosens the glue/seals a bit).
wolverine_2k said:
Did she drop the phone by any chance? Or has she taken it into the water? No matter how much Sony claim their phones to be waterproof, they're never 100% waterproof especially when they get older (the heat from charging/general use loosens the glue/seals a bit).
Click to expand...
Click to collapse
I've got a curious problem because I can hear the voice of the person I called but she/he can't hear me
motebelep said:
I've got a curious problem because I can hear the voice of the person I called but she/he can't hear me
Click to expand...
Click to collapse
Is your loud speaker working?
I believe the speaker is built into the same unit as the mic. If the loudspeaker isn't working either, then it's an issue with the cable. If your mic is dead and loud speaker is working, then it's a lot harder as that board is quite a pain to replace.

Has anyone had any trouble with the headphone jack?

I've never dropped my phone. It's never been wet. I use my out-of-the-box headphones and auxiliary cable daily.
Recently the right channel stopped working. I only get audio out of the left side. Really weird. I tried using compressed air to clean out the jack. I keep the phone pretty clean. I've never had an issue with headphones in the past. This is an enormous inconvenience, especially since I've only owned the device for 4 months!
Anyone else have a similar issue or know of a way to remedy this problem? I've since done a reset on the device and am running stock VS996.
Thanks in advance!
TheCoryGuy said:
I've never dropped my phone. It's never been wet. I use my out-of-the-box headphones and auxiliary cable daily.
Recently the right channel stopped working. I only get audio out of the left side. Really weird. I tried using compressed air to clean out the jack. I keep the phone pretty clean. I've never had an issue with headphones in the past. This is an enormous inconvenience, especially since I've only owned the device for 4 months!
Anyone else have a similar issue or know of a way to remedy this problem? I've since done a reset on the device and am running stock VS996.
Thanks in advance!
Click to expand...
Click to collapse
1) You have this issue with and without the auxiliary cable?
2) You've tried different headphones?
Sent via open market LG US998 V30/V30+
TheCoryGuy said:
I've never dropped my phone. It's never been wet. I use my out-of-the-box headphones and auxiliary cable daily.
Recently the right channel stopped working. I only get audio out of the left side. Really weird. I tried using compressed air to clean out the jack. I keep the phone pretty clean. I've never had an issue with headphones in the past. This is an enormous inconvenience, especially since I've only owned the device for 4 months!
Anyone else have a similar issue or know of a way to remedy this problem? I've since done a reset on the device and am running stock VS996.
Thanks in advance!
Click to expand...
Click to collapse
Did you check this setting?
Sent from my LG-H932 using XDA Labs
ChazzMatt said:
1) You have this issue with and without the auxiliary cable?
2) You've tried different headphones?
Sent via open market LG US998 V30/V30+
Click to expand...
Click to collapse
Without I can't tell. Bluetooth works fine though. And I've used three total cables with the same result.
BROKEN1981 said:
Did you check this setting?
Click to expand...
Click to collapse
Yes. Didn't help unfortunately.
ChazzMatt said:
1) You have this issue with and without the auxiliary cable?
2) You've tried different headphones?
Click to expand...
Click to collapse
TheCoryGuy said:
Without I can't tell.
Bluetooth works fine though. And I've used three total cables with the same result.
Click to expand...
Click to collapse
And different headphones? For some reason you are not answering that question...
It could be your wired headphones. 3 possible points of failure -- headset jack, aux cable and the wired headphones you are using. You've only (maybe) eliminated the aux cable part.
I really couldn't care less about Bluetooth. That has NOTHING to do with what we are discussing.
I also don't understand why you can't tell whether you have right channel audio when NOT using an aux cable. Either you have it or you don't. Don't use an aux cable for a few minutes and see if you have right channel audio. I'm just curious.
If you don't, then use a DIFFERENT SET of wired headphone WITHOUT AUX CABLE and see if you have right channel audio. Surely you have another pair. Or borrow some, or go buy a cheap $5 set from the dollar store. Something could be broken with your wired headphones -- either the plug itself or some of the wiring.
Sent via open market LG US998 V30/V30+
I had similar problem - interrupting sound in one of headphone channel. I applied solution described here: imgur.com/gallery/5cou6 and it fixed the issue.
granularity said:
I had similar problem - interrupting sound in one of headphone channel. I applied solution described here: imgur.com/gallery/5cou6 and it fixed the issue.
Click to expand...
Click to collapse
Thanks, good tip. You gently pulled the right side metal tab out further so it would have better contact with the plug.
https://imgur.com/gallery/5cou6
@ChazzMatt
I tried other headphones since my last reply. Still didn't work. Also tried the same cables I've had in my wife's phone and they worked.
Going to try fix posted though! I just need to find myself a nice, bright light.

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