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usb connection with pc suddenly dead

Hello suddenly my nexus s stopped connecting with data with the pc it only charges, tried with 3 diffrent computers with diffrent os , no menu popping on nexus and nothing connected on the computer(like i didnt connect anything), i removed the battery left it for some time installed stock rom still nothing.It was acting normally for a second and the other it stopped any help appreciated!

Are you sure you're using the cable that came with the phone? I have an LG Wink featurephone here that uses the same connector at the phone end -- its cable will charge my Nexus S (using the computer, obviously, but also when used with either the LG or Samsung charger) but no USB connection happens when I use it. Only the cable that came with my Nexus S provides a USB connection when I connect to the computer. I guess there are pinout differences between the two cables.
If you're sure you're using the right cable, I would guess that it's gone bad if it doesn't work on any computer. You can buy an (overpriced) replacement from Samsung or maybe a cheaper one on eBay or at a retail store. If the latter, be sure the seller lists it as compatible with the Nexus S.

it happened with the original cable ppfff i dont know...

same problem
stavros86 said:
Hello suddenly my nexus s stopped connecting with data with the pc it only charges, tried with 3 diffrent computers with diffrent os , no menu popping on nexus and nothing connected on the computer(like i didnt connect anything), i removed the battery left it for some time installed stock rom still nothing.It was acting normally for a second and the other it stopped any help appreciated!
Click to expand...
Click to collapse
Hi
I have the same problem
I have no idea what the problem could be.
We are not alone with this problem: code.google.com/p/android/issues/detail?id=13553
Now installed stock rom as well but still the same problem.
If i starting the NS in the bootloader mode the phone is not recognized by the computer.
It would be great, if someone knows a solution!

polandy said:
Hi
I have the same problem
I have no idea what the problem could be.
We are not alone with this problem: code.google.com/p/android/issues/detail?id=13553
Now installed stock rom as well but still the same problem.
If i starting the NS in the bootloader mode the phone is not recognized by the computer.
It would be great, if someone knows a solution!
Click to expand...
Click to collapse
I've been trying to get help with this for weeks. No one is even responding to my posts. I thought it was something OBSURDLY simple, such that people didn't even want to waste their time responding to me.

Seeing same problem, No connetion via USB
Posted problem in General,, http://forum.xda-developers.com/showthread.php?t=1104245
Tried different cords, different computers and operating systems,, did cold start several times on phone (removed battery) still no luck, I am running totally stock
Curious do any of you have the Google Music Beta?? (maybe a over zealous rights thing?)
just tried it with a Win 7 machine that had never seen it before and it said it could not recognize the device,, me thinks that the MS device driver DB is messed up buy some recent Win update??

i sent it to samsung to change my usb slot because after connecting to pc and nothing happen when i went to charge the phone it took 5 hours to get to 30% so iam almost sure that mini usb slot malfunctions

stavros86 said:
i sent it to samsung to change my usb slot because after connecting to pc and nothing happen when i went to charge the phone it took 5 hours to get to 30% so iam almost sure that mini usb slot malfunctions
Click to expand...
Click to collapse
My phone charges just fine. And my USB connectivity was fine until I manually installed 2.3.4.

~I had usb connection problems after upgrade to 2.3.4 a bit different but I managed to get the USB back by formatting the SD card.
see here

Acnescar said:
~I had usb connection problems after upgrade to 2.3.4 a bit different but I managed to get the USB back by formatting the SD card.
see here
Click to expand...
Click to collapse
I was on 2.3.3 when this happened, i tried to flash 2.3.4 then and again it didnt work but the strange thing is that when i was moving the mini usb the first times up and down it was shown for a moment as a broken usb device.Then this stopped and was not shown at all on the computer and finally the phone charged super slow when connected to electricity

Beginning to believe that it is a physical prob with USB connector on phone. It seems to start/stop charging when wiggling usb on phone but no mounting. Doe anyone know best way to resolve , T-mobile but bought from Best Buy? so to Best Buy? FOR SUPPORT /EXCHANGE? suggestions?

I've seen loose connections before. My suggestion ain't the cheapest but the plug, on the cable end, shouldn't wiggle. I went to a corporate sprint store, the ones that actually have working display phones, and got their usb to micro usb data cable. The thing with that cable is when you plug it in the phone side, it goes into the jack firmly. You can almost feel the little locking tabs click into place. There should be no play or wiggle with that cable as long as there's no damage or abuse with the jack on the phone. IMO, that's a good data cable. It's never given me problems before.
Also, sometimes the cable is only wired for charging. A true data cable will be wired correctly and be able to both charge and transfer data. Usually the cables that come with the phone are crap quality. I don't know if my suggestion will help but it won't hurt to have a good cable for data transfer and flashing. The last thing you want is a flaky connection from a cheap cable when you're flashing roms. Russian roulette with bricking a phone in a worse case situation.
Did you try reboot the computer and the phone? How about a different usb port? How about unplug any other usb device in case it's conflicting for some unknown reason? It sounds like so many people with windows 7 are having problems. Usually always happens with a new os that's released. Xp, for flashing devices and programming different hardware devices, has never given of a problem. I have a small partition with xp on it just for that purpose only.

off to Samsung for repair for me...
After time on phone with them and a factory reset belief is that the usb connector is defective. BTW Best Buy just hands off to Samsung 1-800 #
So Back to a barely functional G-1 for a while, glad I could find it!

So is Samsung or the carriers replacing or fixing units?
My USB data died shortly after 2.3.4 ota update.
Wifi FTP is fine for data transfer but I want USB debug to work...
Shame on google and Samsung, this bug has been around for months.

no shame on anyone...
I went through a factory reset with Samsung on phone that isolated the problem to what is apparently a loose usb connector, nothing to do with software... only hassle is sending it in for repair, as` mentioned problem needs to be dealt with Samsung customer service (not carrier or Best Buy), they were fine on phone...

Asus Sl101 Debugging Mode problems

Hello there
Ive got a problem. I wanted to Root my SL101 (Firmware 4.0.3 Android) with Peri or THe 1 Click Solution. But the original usb cable only charged my device when I plugged in to power socket. BUt USB on PC didnt work. PC never found device, didnt search for driver and no "BLing" for USB device plugged in. So I ordered a new usb cable (not original, cause asus sl101 already 3 years old). The new cable worked. USB found on PC. Data transfer worked. Charinging over power socket worked, but no charging when connected to pc. When I enabled USB Debugging, it said "Device removed" and then "device started". But there was no deivce seen on computer. No "internal storage". So there is no possibility to transfer data and Root won't start cause it doesnt find device. I installed all driver (ADB driver, also tried Asus Pc Suite), but it doesnt work. Is my device broken or is it because of the cables? Are there any working cables on internet with better quality and supporting USB Debugging? The non original cable is from vhbw.
Is this a common problem with Asus Sl101? I searched for related problems. SOmeone also had problems with Asus original cable. It also charged plugged in to power socket but not with PC and Pc never fund USB conection, never searched for drivers. He ordered a new cable (original, cause his case was years ago) and it worked.
Any ideas how to get it work? Its not really important to root it though, but I wanted to buy Titanium Backup so I can save my apps, and I need root for it. There are f course plenty other apps needing root. Any advices?

Not sure about the data transfer error apart from lack of drivers, but the PC will not charge the tablet while it is running - at least for the TF101 anyway, the only way to get the PC to charge it is to either turn it off while its plugged into the PC and leave it overnight for trickle charge, or I think also if the tablet is in sleep mode, it will also trickle charge - but you have to use the main charger to get a fast charge into it - PC will only trickle charge

*Detection* said:
Not sure about the data transfer error apart from lack of drivers, but the PC will not charge the tablet while it is running - at least for the TF101 anyway, the only way to get the PC to charge it is to either turn it off while its plugged into the PC and leave it overnight for trickle charge, or I think also if the tablet is in sleep mode, it will also trickle charge - but you have to use the main charger to get a fast charge into it - PC will only trickle charge
Click to expand...
Click to collapse
First of all, thanks for answering. I tried it, but when I plug in USB, Asus SL101 turns on. I won't charge turned off. It turns on automatically when I plug in USB to charge. And when its turned on plugged in on PC USB, as I explained before, it won't charge.
Somene know where I can get a working cable? Maybe an original working one? Asus SL 101 is maybe 2 or 3 years old know. Shouldnt there be still original ones left in shops? Actually it doesnt have to be an original one. A working one is fine, too. (Working means for me: USB, Charging, USB Debugging). So anyone knows good stores/internet offers (amazon, ebay...) for sl101 cables? Cause I really dont know which one is a good one.

Plug it in to USB and then turn it off, you won't see it charging, it is a very very slow process when you charge from PC (If it works the same as the TF101) - leave it overnight plugged in and turned off
Sounds like your cable is working fine, you get a data connection with USB debugging - so data side of the cable works, and you get a charge when you plug it into the charger, so power side of it is working too
It's likely drivers stopping you using the media transfer mode
eBay would probably be your best bet if you want another one
asusparts.eu sell some stuff too - fits SL101
http://www.asusparts.eu/en/Asus-KIT-AC-TF101

Ya actually I didnt want to complain. The cable really works fine, but I cant root cause USB Debugging Mode is found by PC, but showing no storage icons on computer. So Root Software dont find device and no data transfer works while it is in debugging mode. Could it be because of my device? Actually it was from germany and the firmware also was DE. But for updates, I had to change it to WW code. Maybe its cause of firmware. I really dont know. Its strange cause for everyone it works, only for me it doesnt work. So original cable was to begin with not working on usb pc. So I hoped the fake one would work full. *sigh*
Thanks for the link. I searched for only the cable (on the given link) and I found it without adapter. But its a pity, Im in germany and if they send the cable to me, I have to pay 46$ for the cable. For US people its 25$ (cause they dont have to pay oversea sending costs). If its also not working, so it would be a problem.. even warranty is expensive (sending back ~20$).
Is there a way to downgrade SL101 from 4.0.3 to Firmware Version 3.2 without using USB Debugging and root?

Case closed, Watson (I always wanted to say that)
I found the error. The cable is working now and USB Debugging working, too. Root was successful. I opened device manager and deleted Asus Epad Sl101 driver and plugged sl101 in. So windows had to search for drivers and it installed the right drivers. I dont know why preinstalled ADB Drivers didnt work, but now everything works.
Thanks for your effort

Great, yea sounded like a driver problem, pleased you got it working :good:

Help figuring out what's broken with my OnePlus One

Hello everyone,
A couple of weeks ago my USB data connection on my OnePlus One has stopped working.
This means that no connection is even detected on any computer.
This is not a driver issue as the computer doesn't even notice anything has plugged in.
I think it's not a software/ROM issue because the same applies to fastboot mode and recovery mode - no data connection, no "usb plugged in" sound on any computer, no device showing up.
It's also not a cable issue, as the same cable works on other OnePlus One's and I've tried many different known-to-be-working cables.
More facts:
1) When plugging to a computer USB port - the battery icon shows the charging (lightning) symbol for a half a second and disappears and it won't charge. The computer, of course, doesn't see a usb device plugged.
2) When connecting to an AC charger - it charges just fine.
3) I already tried replacing the dock connector and flat cable unit with a new one - did not solve the issue, which means the dock connector is fine.
Any insight on this will be greatly appreciated!
Thanks!

purpleman2k said:
Hello everyone,
A couple of weeks ago my USB data connection on my OnePlus One has stopped working.
This means that no connection is even detected on any computer.
This is not a driver issue as the computer doesn't even notice anything has plugged in.
I think it's not a software/ROM issue because the same applies to fastboot mode and recovery mode - no data connection, no "usb plugged in" sound on any computer, no device showing up.
It's also not a cable issue, as the same cable works on other OnePlus One's and I've tried many different known-to-be-working cables.
More facts:
1) When plugging to a computer USB port - the battery icon shows the charging (lightning) symbol for a half a second and disappears and it won't charge. The computer, of course, doesn't see a usb device plugged.
2) When connecting to an AC charger - it charges just fine.
3) I already tried replacing the dock connector and flat cable unit with a new one - did not solve the issue, which means the dock connector is fine.
Any insight on this will be greatly appreciated!
Thanks!
Click to expand...
Click to collapse
By dock connector, you mean the USB port? Typically, this issue arises when the pins in the USB port get damaged. I don't know how the rest works out, but if that particular section of pins have to communicate throughout the rest of the motherboard, perhaps the trail responsible for that may have somehow gotten damaged. This is a clueless theory, someone with more electrical/motherboard experience can verify this.
What I do know is that once the micro USB port has been replaced on the phone, the issue should be fixed. It happened to an S3 I still have and I got it replaced by a friend. Sadly, it happened to me at the wrong time since i had wiped the entire OS and internal storage and was relying on my USB OTG cable and a flash drive which contained a rare rom called Sonic Open Kang Project (SOKP).
DO NOTE that this has also been an issue with me on the software side of certain devices. I uave had practically every flagship device out there and have come across a point where this happens on both stock and custom roms. My Optimus G did it on custom roms, and my Nexus 7 2012 occasionally on stock. There were other devices I cannot remember but sometimes factory resets or replacing the rom helps. However, you did state that the result is still the same on fastboot/recovery, so this seems to be more on the hardware side.

I replaced the USB connector (including it's flex cable) entirely. Did not solve the issue.
What else could be wrong?

try again
purpleman2k said:
I replaced the USB connector (including it's flex cable) entirely. Did not solve the issue.
What else could be wrong?
Click to expand...
Click to collapse
Try another computer. See if you can get any response from adb.

pbergonzi said:
Try another computer. See if you can get any response from adb.
Click to expand...
Click to collapse
I tried a lot of different computers and cables. None of them detect a USB connection.
Again, to clarify - they don't even SEE a usb device has been plugged in.

recovery?
purpleman2k said:
I tried a lot of different computers and cables. None of them detect a USB connection.
Again, to clarify - they don't even SEE a usb device has been plugged in.
Click to expand...
Click to collapse
You running a custom recovery? If so, see if you can toggle the mtp on/off reboot with each back to recovery. Use the tools to check the filesystem, permissions, etc.
Could pins have damaged?

Well, I did replace the USB connector with a new one, so if pins are damaged it's gotta be on the motherboard side, and I can think of no reason why that would ever happen.
As for recovery, I'm running TWRP and I'm not sure I understand what you meant I should try. Can you elaborate?
Thanks

Defective USB Port? Data connection and Quick Charge not working anymore

Hello,
I recently flashed TWRP and CyanogenMod 13 on my Mi4. It was working quite well, I had some problems with the rotation sensor and some bugs in the software, but Quick Charge and also the Connection to the PC worked without problems.
Today when I was on my way home I was charging my Mi4 with a Qalcomm 2.0 Quick Charge Powerbank from Aukey (i have used it in the past on other phones, always worked great), but it seems that the USB cable was broken, it was charging very slowly and it also seemed to have a defective contact (the cable charged if i moved it around a bit, but in certain positions it wouldn't charge).
However, when i got home and plugged it in, I noticed that the phone also charged very slowly with the charger, so I thought that I would just flash MIUI back on the device to fix it, maybe it was a problem with Cyanogenmod. But that didn't work at all, the phone couldn't connect to the pc.
So, here's my problem: The PC can't detect the phone and it also seems, that the phone doesn't recognize, that its connected to a pc. Charging via the USB ist still working, but very slow. Also Quick Charging isn't working, it doesn't matter which charger or cable I use, it's always slow. When I connect the phone to the charger or the PC it takes like 5 seconds to recognize, that a cable is connected, then it starts (slow) charging.
The phone doesn't show up in the windows device manager at all (there are no unkown devices shown, the pc just doesn't react when you connect the phone). Also there is no message on the phone when you connect it (usually you can choose if you want the use your phone as a usb drive or just charge it). I also tried to activate MTP in the developer settings on the phone and turning USB Debugging On/Off, but it didn't help.
I managed to download a MIUI Rom from xiaomi.eu with the phone and installed it with TWRP, but it didn't help. So I think I actually broke the USB Port of my phone with a defective Micro USB Cable. The phone can still charge (very very slowly, no quick charge possible), but I can't connect it to the PC anymore. The pc also won't detect the phone when it's in fastboot mode.
I tried to look it up on the internet, but all I found were people with driver problems, and I don't think that I have a driver problem, because it seems like there is no connection between PC and Phone besides the charging.
Anyone knows something about this? Is it even possible to just break the data connection and the quick charging with a defective cable?

Hey, did you get your Mi working? I have a similar experience with mine.

Same Problem
hey i got the same problem did you find any solution ?

redstainedfriday said:
Hey, did you get your Mi working? I have a similar experience with mine.
Click to expand...
Click to collapse
Garling said:
hey i got the same problem did you find any solution ?
Click to expand...
Click to collapse
No, I didn't find a solution for the problem. Phone is still not working, I even ordered a new charging port, but I made a mistake and ordered one for the LTE version. I have the 3g version, so the new charging port didn't even work with my phone. I don't want to spend any more money on it, so I just gave up on fixing it.

Same problem, and I am also stucked in recovery for now, never will buy phone without SdCard now...

Somobody found solution?

USB Device not recognized / No fast charge

So I've had my S7 for around two months now, and all of a sudden fast charging just stopped working. Thought, oh, must be using the wrong cable (have loads of them micro USB cables floating around)
Now I'm certain I'm using the official Samsung fast charge plug and cable that came with the phone, and still no fast charge. When I try to plug into my Windows 10 Desktop or Laptop I have a message that says the device can't be recognized
Phone has already been rooted and flashed with a custom rom. Didn't think that was the issue as it wouldn't even show the mounted storage in TWRP, or identify the phone in ODIN.
Now I've flashed back to the stock rom that I made a backup of when I had the phone, and I still have the same problem!! Can't access internal / external storage using the supplied USB cable and can't fast charge.
I'm thinking the USB port on the device is just knackard.. but really, I've looked after it so well I fail to see how this could happen, unless it's a common fault.
Might just get a wireless fast charger, but do you guys have anything else I can try before giving up on the USB connectivity?
Cheers

try to connect to a different pc, if same it means your usb connector is faulty

Sounds more like the cable is bad tbh, you won't get fast charge from a PC USB port, only from the Samsung charger
But if the device isn't recognised by the PC, and won't fast charge from the charger, the common thing between them is the cable
Possible it's the phone USB port, but more likely the cable is bad
Afaik certain cables can not fast charge either, so chances are the ones you have lying around that are not the official cable can not support it
Genuine Samsung USB cable is white with the USB port symbol on both ends and the phone end has two small ridges to grip when inserting and removing it, should help identify it

Yep I'm using the official cable and fast charger
I'm trying to fast charge via the fast charger and not USB. Only trying USB to access the internal / external storage.
Tried on my desktop and laptop and both have the same issue where my old HTC m8 connects without any issue.

clownstyle said:
where my old HTC m8 connects without any issue.
Click to expand...
Click to collapse
With the same cable?

*Detection* said:
With the same cable?
Click to expand...
Click to collapse
To fast charge I've tried the original Samsung cable with the fast charge plug.
To connect to the PC I've used x3 different cables that all work with my HTC one m8. With all of them I get device not recognised. Already tried installing Samsung switch and reinstalling drivers which didn't work.

clownstyle said:
To fast charge I've tried the original Samsung cable with the fast charge plug.
To connect to the PC I've used x3 different cables that all work with my HTC one m8. With all of them I get device not recognised. Already tried installing Samsung switch and reinstalling drivers which didn't work.
Click to expand...
Click to collapse
I mean for the HTC, does the Samsung fast charge cable work to connect to the PC?
Does sound possible the phones USB port is faulty if you can't get any connection at all to the PC with multiple cables
Try changing the USB mode in developer options
Networking > Select USB configuration

*Detection* said:
I mean for the HTC, does the Samsung fast charge cable work to connect to the PC?
Does sound possible the phones USB port is faulty if you can't get any connection at all to the PC with multiple cables
Try changing the USB mode in developer options
Networking > Select USB configuration
Click to expand...
Click to collapse
Yep the genuine Samsung cable works when connecting the htc to the computer.
I've tried enabling USB debugging and switching between charging, MTP, PTP, RNDIS, Audio Source and Midi.. all of them come back with the windows popup

clownstyle said:
Yep the genuine Samsung cable works when connecting the htc to the computer.
I've tried enabling USB debugging and switching between charging, MTP, PTP, RNDIS, Audio Source and Midi.. all of them come back with the windows popup
Click to expand...
Click to collapse
Unfortunately it is starting to sound like the phone is at fault
Still under warranty? (KNOX 0x0)

*Detection* said:
Unfortunately it is starting to sound like the phone is at fault
Still under warranty? (KNOX 0x0)
Click to expand...
Click to collapse
Unfortunately not. Well it's been rooted and flashed so I guess not.
Ordered a wireless fast charger so hopefully that will see me through and WiFi network for file transfers.
I reckon the USB port will need replacing but I'm not really inclined to do that myself.

Just noticed you said you flashed back to stock using a backup you made
Have you tried stock using ODIN and 100% stock files, using CSC to reset?

My dad has a5 2016 with the same issue, and no warranty. I bought flex + connector , replaced it and still nothing. No fast charge ( it takes cca 4hrs to charge it fully ) and no usb connectivity. I gave up on that

@ClowsTyle
Any luck? I seen your recent post in another thread and it sounds like you tried to replace the USB but that didn't work.
I'm having the exact same issue now. Device suddenly stopped fast charging, Windows does not recognize it when plugged into PC. I ordered a new cable to double check and also tried on different computers. I also tried reinstalling drivers, but nothing has worked.

Hi my is doing the same thing no Fast charge and no pc connection, did anybody find out what happen with yours ?

You have to change power ic s535 for s7 edge.
When usb gets moisture power ic will damage.

I have same problem my phone charging 0-100 6hours but ı install notorious kernel and it takes 3 hours it is better than 6 hours

Same Issue
I've had the same issue for the past 3 weeks now and I've tried everything I know...
1. Tested cable and charger with another S7 and they work fine.
2. Factory Reset.
3. Changed the USB port chip.
4. Turned on "Low Battery Dump".
So far, the issue hasn't changed.

was this issue solved?
I´m having same issues whit my galaxy s7 active, I can not fast charge my phone no matter what cable I use, then noticed that evrytime I plug it to any computer it says the devicescan not be recognized, I´m about to buy a new charging port and install it, but I want to make shure this is not a software related issue.
I´ve tried several cables and several laptops/ pc´s
I´ve factory reseted my device and turned on low battery dump, wiped cache partition, and problem still there...

The charger could be faulty/damaged did you try a different charger?
---------- Post added at 06:43 PM ---------- Previous post was at 06:40 PM ----------
Dial *#08# and select the first option (mtp and another option i am on a custom rom that seems to not have the *#0808# setting

I also have the same issue with my phone the phone charges but not recognize and also tried to change settings on phone and nothing? And my other samsung phone works and nothing wrong with USB tried to install smansung drivers on PC and still same issue.
I tried a different USB and nothing works and different ports on my comp.
My ports works with my other samsung phone so not sure why not with the S7?
Is the USB faulty?