[Q] SGS3 unable to connect to PC via USB - Galaxy S III Q&A, Help & Troubleshooting

Hey guys,
My SGS3 suddenly stopped connecting to the PC. When plug the USB cable the phone just charges. No notification shows up on the phone or the PC. I tried using different usb cables and laptops but no luck.
I was running on CM11 when the problem started. Then i changed to a stock based rom. But nothing seems to be working. Any solution????

Search and read, hundreds of identical threads. You have a problem in windows, not the i9300.

find your developer options
pasanjay said:
Hey guys,
My SGS3 suddenly stopped connecting to the PC. When plug the USB cable the phone just charges. No notification shows up on the phone or the PC. I tried using different usb cables and laptops but no luck.
I was running on CM11 when the problem started. Then i changed to a stock based rom. But nothing seems to be working. Any solution????
Click to expand...
Click to collapse
install your phone drive ,find your developer options→usb debugging→select

Tried everything man. Not working. I used 3 usb cables and two other lap tops. My phone does not even detect the PC connection.

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[Q] major problem

First, i apologize if there is already a thread regarding this, but everything ive came across searching on google/xda has come to no avail.
i just got the i777, plugged it into my computer and nothing happens. on my phone it says "mtd connected" and charges.
ive turned on usb debugging, installed samsung kies, installed the drivers, tried the "dial *#7248#(or whatever it is), ive tried 3 different usb cables, all the usb ports on my laptop (brand new alienware), and also 2 other laptops. nothing works
my computer also makes the sound that its been connected. if i go into device manager it shows as Other devices > 7 CDC's with the yellow exclamation mark
if someone .could PLEASE help me it would be much obliged, all i want to do is start flashing again
chuckles_prs said:
First, i apologize if there is already a thread regarding this, but everything ive came across searching on google/xda has come to no avail.
i just got the i777, plugged it into my computer and nothing happens. on my phone it says "mtd connected" and charges.
ive turned on usb debugging, installed samsung kies, installed the drivers, tried the "dial *#7248#(or whatever it is), ive tried 3 different usb cables, all the usb ports on my laptop (brand new alienware), and also 2 other laptops. nothing works
my computer also makes the sound that its been connected. if i go into device manager it shows as Other devices > 7 CDC's with the yellow exclamation mark
if someone .could PLEASE help me it would be much obliged, all i want to do is start flashing again
Click to expand...
Click to collapse
Probably a bad usb connector on your phone. What rom are you currently on?
I was fearing this. Its all stock, not even rooted.
IF i have to get a new usb port, do i have to do any soldering?
When I had this problem I downloaded multiple different drivers and eventually found ones that worked . Try Google searching i777 usb drivers. I downloaded ones that worked from softpedia actually.
chuckles_prs said:
I was fearing this. Its all stock, not even rooted.
IF i have to get a new usb port, do i have to do any soldering?
Click to expand...
Click to collapse
No soldering required. It's just a ribbon cable that connects to the main chip. Took me about an hour from start to finish, but i was being really careful.
Sent from my SGH-I777
He has said his computer recognizes the device, albeit it sees it as an unknown device. And it makes a sound when plugging it in. This tells me it's not a usb port problem but a driver problem. I have had this same problem. As I stated above. Even after installing kies it still didn't recognize it. I had to install the android sdk package, open the program and update, and then it still wouldn't recognize it. I had to download separate usb drivers for the phone as well. Who knows why, some computers or operating systems just have a harder time with the drivers. That's the problem in my opinion. Here's hoping it's not a usb port problem. Also this would prevent charging if it were a faulty usb port on the phone wouldn't it?
Phalanx7621 said:
He has said his computer recognizes the device, albeit it sees it as an unknown device. And it makes a sound when plugging it in. This tells me it's not a usb port problem but a driver problem. I have had this same problem. As I stated above. Even after installing kies it still didn't recognize it. I had to install the android sdk package, open the program and update, and then it still wouldn't recognize it. I had to download separate usb drivers for the phone as well. Who knows why, some computers or operating systems just have a harder time with the drivers. That's the problem in my opinion. Here's hoping it's not a usb port problem. Also this would prevent charging if it were a faulty usb port on the phone wouldn't it?
Click to expand...
Click to collapse
I wonder if the OP tried this on a computer with Windows XP. I've noticed Vista and 7 seem to have a hard time discovering/installing some usb devices. As for it not charging also..I think the pins inside the port are used separately for charging and connecting to pc.
My computer recognized my phone fine back when it was the Captivate, but it has a really hard time with my GS2. It often will say "invalid hardware id" or not show up at all. Usually it's fixed by swapping ports.

[Q] X10, computer now says USB device has Malfunctioned won't recognize. HELP

Hi.
I have an Xperia X10 that I gave to my husband. He's good with computers etc.. and he went ahead and unlocked and rooted this phone. It's working awesome - EXCEPT - when you plug it into the computer via USB the computer will NOT recognize it. It says exactly, " "USB Device Not Recognized
One of the USB devices attached to this computer has malfunctions, and Windows does not recognize it. For assistance in solving this problem, click this message"".
Here is a bit of background info:
Before my husband rooted the phone etc. the micro usb port on the phone wasn't working properly - it was loose and you would have to really wiggle it, bend it etc.. to make the debug engage. He did get it to flash/root/unlock/install custom rom successfully ( he installed doomkernel 2.6.29-modFXP-DooMKernel-v06) all while the phones usb wasn't working ideally. At this point he was trying out some settings and branded it as a X10i Generic. (This phone WAS a Rogers phone and we are in Canada). He then wanted to change the branding since x10i wasn't working too great. At this point the USB port on the phone wouldn't engage into debug or charge anymore so we took it to a repair place and they soldered the usb port back - they told us this was common (them coming loose). After they soldered it they said it wouldn't go into debug and that it was because (probably) of the firmware my husband put on but didn't really know.
From that day on this phone has never connected to the computer successfully - the computer won't even recognize it as a memory card - as soon as you plug it in it tries to install drivers and then the computer says exactly this::
"USB Device Not Recognized
One of the USB devices attached to this computer has malfunctions, and Windows does not recognize it. For assistance in solving this problem, click this message"
Our computer is running Windows 7 (64bit) - and the phone use to work fine.
We have tried using SDK tool, installing drivers manually when the phone is plugged in, but the computer will just say that it is already up to date, and it names the phone ' UNKNOWN DEVICE" and has the exclamation box next to it indicating it's malfunctioned. Sony software (PC Comp. etc) also will not detect the phone.
Have been trying to get this working for about 2 months now. 2 months of reading, google searches, more reading, trying idea after idea, and it doesn't work.
Has this happened to anyone else? Can someone help out here? Is this a firmware/software problem (maybe because it's been branded as a x10i)? Or could this all be a matter of the USB port being improperly fixed?
Facing same USB malfunctioned issue
I am facing the same issue since quite long since i have rooted my Samsung Galaxy 2 SGH T-989. My phone gets connected properly but when i try to transfer any of the files from computer to my phone. It gets disconnected automatically after copying the stuff till 5% to 10% and shows ''USB device has malfunctioned".
I am also trying to search and rectify this issue, but till now i have found nothing. Please let me know if you come across of kind of solution for it.
Im sometimes facing the that unrecognized USB but, everthing working.
Sent from my X10 using xda app-developers app
I faced the exact same problem with my x10 mini. It wouldn't charge properly nor connect to my PC. I would have to wiggle the micro USB port and cable to get it working, which actually got me wondering if the problem was really the USB port. After I've bought a male-male USB to micro USB cable everything worked fine. Same thing happened with a brand new x10. I tried to use the USB cable I bought instead of the original one which came with the phone and you wouldn't guess, everything works fine.
So try to connect it with another USB - micro USB cable.
CCVader13 said:
I faced the exact same problem with my x10 mini. It wouldn't charge properly nor connect to my PC. I would have to wiggle the micro USB port and cable to get it working, which actually got me wondering if the problem was really the USB port. After I've bought a male-male USB to micro USB cable everything worked fine. Same thing happened with a brand new x10. I tried to use the USB cable I bought instead of the original one which came with the phone and you wouldn't guess, everything works fine.
So try to connect it with another USB - micro USB cable.
Click to expand...
Click to collapse
We have already tried connecting it to all of the (10) usb ports on our computer and we have tried NUMEROUS cables ( between my husband and I we have probably 8 cables, and have tired them all)

USB not recognized

Hello All,
I am facing a strange problem.. Till yesterday noon all was fine but since evening whenever I connect my phone to my laptop, I get a prompt that USB device is not recognized.
I re-installed USB drivers and Kies and also checked on different ports on the laptop but same issue..
Further on the same port, my hard-drive is successfully detected,
USB icon does not appear when connected to laptop
Can you please help?
Other information:
1. Phone model: GT-i9300 International
2. ROM: AICP 01-Sep nightly
EDIT:
1. I am able to charge the phone using the same USB cable and laptop USB slot
2. On other laptops as well, I am getting the same issue
Is USB debugging enabled?
nn_gooner23 said:
Is USB debugging enabled?
Click to expand...
Click to collapse
Yes.. however tested with a different cable and found that the cable is faulty...
It's quite strange.. one moment the cable was working and was gone in another !
Sent from my SM-G900F using XDA Free mobile app
srv.abhishek said:
Yes.. however tested with a different cable and found that the cable is faulty...
It's quite strange.. one moment the cable was working and was gone in another !
Click to expand...
Click to collapse
Hmm. That's weird but that could be useful information for me if that ever happens. Thanks i guess!

Phone wont connect to computer via USB

For some reason my phone will not connect to my computer through my USB. I have tried everything and my debugging is on as well. yet still it does not connect. It charges the battery very slowly with USB, much faster with wireless charging. Adaptive fast charging does not work either.
No contact even with Odin via download mode. Have all the drivers and have tried different USB cords.
When you do not make contact with Odin, is it the hardware that is broken?
Have tried different roms in my phone.
boffi said:
For some reason my phone will not connect to my computer through my USB. I have tried everything and my debugging is on as well. yet still it does not connect. It charges the battery very slowly with USB, much faster with wireless charging. Adaptive fast charging does not work either.
No contact even with Odin via download mode. Have all the drivers and have tried different USB cords.
When you do not make contact with Odin, is it the hardware that is broken?
Have tried different roms in my phone.
Click to expand...
Click to collapse
I think it might be the USB port on the computer. I know my computer often has difficulty keeping a connection, even when I use a different cord.
Snowby123 said:
I think it might be the USB port on the computer. I know my computer often has difficulty keeping a connection, even when I use a different cord.
Click to expand...
Click to collapse
no, I have tried different phones and computers.
it's just my Galaxy S6 Edge that does not make contact.
boffi said:
no, I have tried different phones and computers.
it's just my Galaxy S6 Edge that does not make contact.
Click to expand...
Click to collapse
Another user posted a thread similar to yours.
Try reading through it.
http://forum.xda-developers.com/galaxy-s6/help/pc-connection-t3183818
boffi said:
For some reason my phone will not connect to my computer through my USB. I have tried everything and my debugging is on as well. yet still it does not connect. It charges the battery very slowly with USB, much faster with wireless charging. Adaptive fast charging does not work either.
No contact even with Odin via download mode. Have all the drivers and have tried different USB cords.
When you do not make contact with Odin, is it the hardware that is broken?
Have tried different roms in my phone.
Click to expand...
Click to collapse
hi dear .you still facing this problem or you been able to resolve this issue... i am facing exactly same problem on s6 edge..... try many thinks but no success...
very slow charging
not connected to computer
not connect with odin in download mode
not connecting on ADB mode
reactivation lock also not removed from phone...
not accepting any code from dial pad
.....................
plz help me if someone have soloution of this.......
Buy new cable because original samsung are defective. They work ok when charging, but usb data transfer is a hell. With new cable it works perfect but I am so disappointed with samsung. We have 2 s6 edge (32 and 64gb versions) in house with same cable issue ( I previously owned 3 S tabs and galaxy s, s2, s3 mini, s4, s5 mini and now s6 edge)...This is really really disappointing from Samsung. After S2 they started making lousy mobiles (s4 was ok)........Will not buy Samsung again!!!

Galaxy Note 4 Disconnecting and Reconnecting Rapidly to Laptop

I have been unable to maintain a stable connection via usb from my phone to my laptop, although charging via usb works just fine and does not flicker on/off. I have tried using other computers with the same cable and those computers have no problem detecting my phone. Here are things that I have tried to resolve this issue on my laptop:
>Disabling USB selective suspend under power options.
>Reinstalling drivers
>Installing Samsung Kies 3
>Enabled USB Debugging on my Note 4
>Using a different cable
>Using a different port (so far, all ports except one cannot recognize the phone at all. The one that does recognize the phone has the rapid connect/disconnect issue)
>Setting USB connection type to MTP
I should mention that I have CM13 rom on my phone, but that shouldn't be an issue because other PC's have no problem detecting the phone. Any ideas?
EDIT: I just tried connecting an s6 edge to the laptop and it worked fine, so maybe it does have something to do with the fact I have a custom rom on my note 4?
try to enable usb debugging and control your using vysor, if there is no problem, i think nothing wrong with your phone and cable
superinventions said:
try to enable usb debugging and control your using vysor, if there is no problem, i think nothing wrong with your phone and cable
Click to expand...
Click to collapse
No luck. Since the phone keeps connecting/disconnecting, the same happens with vysor. I don't think the problem is with the cable. The same phone and cable works perfectly with other computers. I have tried connecting other note 4's that my family owns to this PC with stock roms and the same issue persists.

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