Develop Bugs

No USB Functionality

I just bought my tmo s2 from craigslist and everything works fine except my computer will not pick up my phone in no other mode than just charge. I have installed all the samsung drivers (im not new to samsung i have owned many samsung phones) and also kies but when i connect my phone my computer just tells me "Unrecognized Device". I need help i dont want to be stuck on a stock phone. I dont know if flashing another rom will fix the problem with my phone. I beleive that the problem has to do with maybe a bad flash from the previous owner. Please Help!! I NEED EXPERT HELP!
Sent from my SGH-T989 using xda premium

Does your phone detect that it's connected to a computer? (A USB symbol should show up in your notification bar when it is)
When you plug in the phone do 2 disk drives show up in "My Computer" on your comp?

yeah if you arent getting the usb symbol like the person above me described it could possibly be a hardware problem

rtorres422 said:
I just bought my tmo s2 from craigslist and everything works fine except my computer will not pick up my phone in no other mode than just charge. I have installed all the samsung drivers (im not new to samsung i have owned many samsung phones) and also kies but when i connect my phone my computer just tells me "Unrecognized Device". I need help i dont want to be stuck on a stock phone. I dont know if flashing another rom will fix the problem with my phone. I beleive that the problem has to do with maybe a bad flash from the previous owner. Please Help!! I NEED EXPERT HELP!
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
Someone else had this problem and I read for you to use a toothbrush and brush your charger port it worked for the other few people
Sent from my SGH-T989 using xda premium

No, my phone will charge but it will not detect that its connected to a computer. There's supposed to be an icon on the status bar but its not there
Sent from my SGH-T989 using xda premium

Use a tooth brush and scrub the USB port. Had the exact problem when I bought mine from CL
Sent from Samsung Galaxy SIV

This is a known issue with this device. I bought mine from T-Mobile and the USB went out about two months after without any rough handling or damage to the phone.
If you've double checked the drivers you have installed there are a few other options you can try.
First, try switching cables. Whether you're using the one that came with your phone, or another, just try switching them out.
Switch computers. Sometimes a different computer will cause the device to attempt to install the drivers, thereby "waking up" the USB option.
Try dialing *#7284# A menu will (should) open. Under USB there will be two choices: modem and PDA. If modem is chosen click PDA, if PDA is ticked, then tick modem and then tick PDA again. You can either hit home or back out of the menu.
You can try the toothbrush, or a can of compressed air (like what you clean your keyboard with).
Others have had success with these things, unfortunately I did not. I eventually had mine replaced under warranty. I understand you may not have that option if these fixes don't work for you. I wonder if Samsung might be able to offer you a different, or discounted, solution?
Good luck.
Also, forgot to add you can try switching back and forth between USB debugging.
Sent from my SGH-T989 using xda premium

I'll go ahead and try these solutions and see if it works
Sent from my SGH-T989 using xda premium

After trying out all these solutions nothing worked. The anything thats left is to send back to samsung but i dont want to be without a phone for a week.
Sent from my SGH-T989 using xda premium

rtorres422 said:
After trying out all these solutions nothing worked. The anything thats left is to send back to samsung but i dont want to be without a phone for a week.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
I know it is not a fix, but if you learn to use ADB and use wireless ADB on your phone and an app like Android commander, you can copy files to your phone ...
Or there are Wi-Fi file apps that actually run a web server on your phone that let's you copy files ...
Might get you by until you can part with it to get it fixed ...
Or there is the 'ol get an adapter for the sd card, and copy files that way ..
Just some suggestions ...
But Yeah should have that fixed ......
Also , have you tried forcing the drivers to install on the "Unrecognized Device"? Sometimes windows gets stubborn and once unrecognized it never will be until you force the drivers ....

GB... comp won't recognize phone at all

My buddy has a D stuck on 2.3.5 and I went to upgrade him to stock 4.0.3... but the computer won't recognize the phone at all. Tried multiple computers. I've done my phone so its not like I'm that new, but since its not my phone I really don't wanna mess with it hard.
The computers say that the USB device has not been recognized properly... the notification doesn't appear on the phone... nothing has happened.
I've downloaded the drivers, tried USB debugging... rebooted computers, the phone...
Any help is greatly appreciated
Sent from my SAMSUNG-SGH-T989 using xda premium

new ion? said:
My buddy has a D stuck on 2.3.5 and I went to upgrade him to stock 4.0.3... but the computer won't recognize the phone at all. Tried multiple computers. I've done my phone so its not like I'm that new, but since its not my phone I really don't wanna mess with it hard.
The computers say that the USB device has not been recognized properly... the notification doesn't appear on the phone... nothing has happened.
I've downloaded the drivers, tried USB debugging... rebooted computers, the phone...
Any help is greatly appreciated
Sent from my SAMSUNG-SGH-T989 using xda premium
Click to expand...
Click to collapse
try another USB port or cable

More than likely it is faulty hardware. There are multiple threads on here with the exact same issue. I had to get a warranty replacement for my wife for this very issue. Tried different cables, computers etc...
Phone goes into download mode and charges as expected, but the USB would not work. I suggest you call your carrier and ask for a warranty exchange.

Weird thing is that he says that it used to do the proper copy notification thing
Sent from my SAMSUNG-SGH-T989 using xda premium

Cannot transfer files via usb...major pain in the butt!!

I have tried all options, to get my files to transfer using my usb cable, to my computer. I can't download a file to the device, nor can I copy/paste files to and from it, either. I have tried multiple cables, and even when it shows the phone is connected, I still cannot do a thing other than copy small files to it. This is a MAJOR problem, as I do not want to use AirDroid...it doesn't see every file I want to transfer...and something so simple as ancient usb file transfers are not working with this phone. My SGS2 worked just fine...but any help that you can give me would be appreciated. And yes, I have googled the hell out of the inquiry...just none that seem to fix my issues. :good:

what happens when "it doesnt work".
what operating system is your computer? windows I'll guess? Does it show in my computer? can you browse the files on the phone? Or do you get a message from the OS? whats the message it gives you??...
many important facts missing from your request for help....

TRusselo said:
what happens when "it doesnt work".
what operating system is your computer? windows I'll guess? Does it show in my computer? can you browse the files on the phone? Or do you get a message from the OS? whats the message it gives you??...
many important facts missing from your request for help....
Click to expand...
Click to collapse
Windows 7 64-bit...It DOES show in MY COMPUTER...yes, I CAN browse the files, yet I cannot move them, nor can I download or copy to the folders. There are also times where I get the Hardware Id Missing error, even after installing Kies or uninstalling it. Sometimes it shows up as USB Mass Storage Device in device manager, other times it shows up as Samsung I-747.

Out of curiosity, have you tried a different cable? I had a similar problem on my phone. I'd try to upload a file to the phone, even a small one, and it would go very slowly and eventually time out. I tried another usb cable and it worked fine.

BonesHopkins said:
Out of curiosity, have you tried a different cable? I had a similar problem on my phone. I'd try to upload a file to the phone, even a small one, and it would go very slowly and eventually time out. I tried another usb cable and it worked fine.
Click to expand...
Click to collapse
Yep. Tried 3 cables total! Same result! This is definitely annoying! Thank you, though!

I think you have a legitimate phone issue sir; sounds like you're due for a replacement. The folks on Verizon are having to replace there's left and right. I think samsung let their quality control slip on this one.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

jeffdaman said:
I think you have a legitimate phone issue sir; sounds like you're due for a replacement. The folks on Verizon are having to replace there's left and right. I think samsung let their quality control slip on this one.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Wow, really!? I was wondering what was up!!! NOTHING worked correctly, mounting wise, ever since I got it! Thank you!

Hmmm did you back up imei? If you did by going to qualcomm settings by dialing a number in your dialer you have to reenable the default for the computer to recognize your phone. That's what worked for me
Sent from my SGH-I927 using xda app-developers app

Aquethys said:
Hmmm did you back up imei? If you did by going to qualcomm settings by dialing a number in your dialer you have to reenable the default for the computer to recognize your phone. That's what worked for me
Sent from my SGH-I927 using xda app-developers app
Click to expand...
Click to collapse
Why would I ever back up my IMEI? What is the point of that? I don't recall ever using any program to do that or that did that! What number did you type? Thank you!

Because earlier lots of people lost their imei from flashing stuff. So imei backup tools were made. If you never have done that youre fine. Might be something else like reinstalling drivers
Sent from my SGH-I927 using Tapatalk 2

Aquethys said:
Because earlier lots of people lost their imei from flashing stuff. So imei backup tools were made. If you never have done that youre fine. Might be something else like reinstalling drivers
Sent from my SGH-I927 using Tapatalk 2
Click to expand...
Click to collapse
I've flashed every possible driver that I can think of....just no dice! Frustrating!

jreed3786 said:
I have tried all options, to get my files to transfer using my usb cable, to my computer. I can't download a file to the device, nor can I copy/paste files to and from it, either. I have tried multiple cables, and even when it shows the phone is connected, I still cannot do a thing other than copy small files to it. This is a MAJOR problem, as I do not want to use AirDroid...it doesn't see every file I want to transfer...and something so simple as ancient usb file transfers are not working with this phone. My SGS2 worked just fine...but any help that you can give me would be appreciated. And yes, I have googled the hell out of the inquiry...just none that seem to fix my issues. :good:
Click to expand...
Click to collapse
Your not using any Custom ROMS or custom kernels? I had that issue with my S3 and I was using a kernel on stock touchwiz and couldn't mount. I had to use a micro sd adapter for the computer to change softwares on my micro sd card then flash it on my phone.
Sent from my BlackBerry Runtime for Android Apps using Tapatalk 2

LGOG will charge but computer wont recognize it???

woke up this morning to something weird. I have the appradio 2 which i use a mhl cord to connect to it. plugged it in like any other day and it wouldnt work. thought maybe it was a bad connection to radio but it wasnt. so i took it inside to plug into tv and nothing. so i plugged it into computer to see if it would connect and nothing. weird thing is, it charges but no connection to pc or anything. ive uninstalled and reinstalled drivers and nothing works. any help would be greatly appreciated.

treezy26 said:
woke up this morning to something weird. I have the appradio 2 which i use a mhl cord to connect to it. plugged it in like any other day and it wouldnt work. thought maybe it was a bad connection to radio but it wasnt. so i took it inside to plug into tv and nothing. so i plugged it into computer to see if it would connect and nothing. weird thing is, it charges but no connection to pc or anything. ive uninstalled and reinstalled drivers and nothing works. any help would be greatly appreciated.
Click to expand...
Click to collapse
get rid of windows and get ubuntu

See if this helps:
1. Toggle USB Debugging (Settings > Developer Options [Under System])
2. Power the phone off.
3. Power the phone on.
4. Toggle USB Debugging.
5. Connect to PC.

my.ads0 said:
See if this helps:
1. Toggle USB Debugging (Settings > Developer Options [Under System])
2. Power the phone off.
3. Power the phone on.
4. Toggle USB Debugging.
5. Connect to PC.
Click to expand...
Click to collapse
Thanks for the response but that didnt seem to help.
I'm curious if its a hardware issue or something else. I've restored a backup i had to see if that helped but nothing. If i return to stock unrooted will that help? Or does someone have an idea as to why and how to fix this? Thanks for any help.

No idea. I did some searches for something like "android stuck usb charge only" and came up with the below. Some folks said that they were able to fix it, though not permanently, by wiping. The above seemed to work for some, though again, not permanently. I wasn't able to find anything else.
Did you try connecting to other PC's?
Did you try removing the device from your PC's device manager, uninstall the driver, then reinstall the driver and reconnect?
I agree it seems hardware'ish because it's also a problem with the MHL cord, too. I wish I could help more, but there's not much out there about being stuck in charge only mode.
Are you still under Manufacterer's warranty? Maybe that can be returned because it won't mount.?

my.ads0 said:
No idea. I did some searches for something like "android stuck usb charge only" and came up with the below. Some folks said that they were able to fix it, though not permanently, by wiping. The above seemed to work for some, though again, not permanently. I wasn't able to find anything else.
Did you try connecting to other PC's?
Did you try removing the device from your PC's device manager, uninstall the driver, then reinstall the driver and reconnect?
I agree it seems hardware'ish because it's also a problem with the MHL cord, too. I wish I could help more, but there's not much out there about being stuck in charge only mode.
Are you still under Manufacterer's warranty? Maybe that can be returned because it won't mount.?
Click to expand...
Click to collapse
Dont have another PC so that option cant be tested now. I removed the device and unistalled/reinstalled drivers and nothing.
Warranty is not an option because its past due. I do have insurance but am afraid of not getting an OG in return and i dont know how all that works to be honest.
I am willing to return to stock but only one concern i have is losing all my data. How do i backup pics and documents without being able to connect to pc? PLEASE can someone show me the way. Thanks again for all responses.

treezy26 said:
How do i backup pics and documents without being able to connect to pc?.
Click to expand...
Click to collapse
Google Drive
DropBox
Box (free 50 GB account with LGOG)

I've had this problem. Tried everything and finally switching to the original lg USB cable worked. Random I know
Sent from my LG-LS970 using xda app-developers app

sbslammer said:
I've had this problem. Tried everything and finally switching to the original lg USB cable worked. Random I know
Sent from my LG-LS970 using xda app-developers app
Click to expand...
Click to collapse
I'm using the original USB cable.
Now I'm using LGNPST but i cant get it to recognize my phone. IDK what else to do.

Have you tried different drivers yet? There's 3 of them here.
http://forum.xda-developers.com/showthread.php?p=35520144
Let's hope this'll work for you.
Sent from my LG-LS970 using xda premium

I started having this problem after installing the latest LG drivers. Replicated the issue on 3 different Windows 7 PCs. 1 32-bit home-built, 1 64-bit Gateway laptop with OEM image, 1 64-bit HP Laptop with work image.
Before upgrading, phone connects fine with in both MTP & PTP modes just using built-in (or pulled from WU) drivers. After upgrading to LG drivers, PC no longer detects the phone. Uninstalling the drivers or going backwards to earlier versions does not fix the problem.

Again,thanks to everyone for their responses, I really appreciate it. But unfortunately nothing seems to be helping my issue. I'm going by my wife's job to hook up to her computer to see if hers can recognize my phone, well at least I hope.
One thing I ask of someone, I've been using Arliberator to connect to my radio. Maybe someone has more knowledge than me to help.
https://play.google.com/store/apps/...51bGwsMSwyLDEsImNvbS5reWxlLmFybGliZXJhdG9yIl0.
Anyways, it has an option under settings to "fix drivers" which I have no idea what it does so i never messed with it. Except for when it wouldnt connect to the radio, I pressed it. Could that have anything to do with it not connecting to pc? I've emailed the dev of this app but have gotten no response as to what it does.
I'm really at a loss here as I can still use my phone but not to its full potential. Its frustrating because I cant even return to stock to see if it will fix my issue. Is there any other way to return to stock without a pc? Like can i flash a stock RUU? I ask because I once had an Evo 4g and was able to do it that way.
Again, thanks to everyone's responses.

I finally heard from the dev of ARLiberator and he guarantees me his app has nothing to do with my phone and that the "fix drivers" is for the app only. He says to try and reset my phone to try and solve my issue. But wouldn't that completely erase my phone?
Idk how I got here...

Anybody???
Idk how I got here...

Try this.
http://forum.xda-developers.com/showthread.php?t=1800935

Evolutionmods said:
get rid of windows and get ubuntu
Click to expand...
Click to collapse
Agreed!

johnq54 said:
Try this.
http://forum.xda-developers.com/showthread.php?t=1800935
Click to expand...
Click to collapse
Thanks but that didnt help either. Idk what else to do. I dont understand how it can still charge but not be recognized by my pc or mhl cord doesnt show up. Weird thing is when I do plug up the MHL phone recognizes it and the mirroring, idk what its called exactly pops up but doesnt show up on TV.
What to do...what to do...

Your charging port may have broken a connector. Happened to my last phone. Charges fine but the computer connector won't work. Replacement needed bud.
Sent from my LG-LS970 using xda premium

alsaces daddy said:
Your charging port may have broken a connector. Happened to my last phone. Charges fine but the computer connector won't work. Replacement needed bud.
Sent from my LG-LS970 using xda premium
Click to expand...
Click to collapse
If this is the case will sprint replace it even if I am rooted? I have the insurance but have been hesitant to take it for that reason.

treezy26 said:
If this is the case will sprint replace it even if I am rooted? I have the insurance but have been hesitant to take it for that reason.
Click to expand...
Click to collapse
Just unroot bud.
Sent from my LG-LS970 using xda premium

[Q] PC won't recognize USB (no error message)

My Phone
Hi, Uber-noob here. I have the sprint samsung gs3, Model number sph-l710, android version 4.1.2. I had stock rooted my phone via QBKing77's video (thanks man!) and had had no problems, including connecting my phone by USB (PDA net, Odin, etc.) to my PCs.
My Problem
For no reason I can see, my laptop(s) stopped recognizing my phone. There is no message, the pc acts as though nothing was plugged in, no message. Device manager shows nothing either. The ONLY sign that my phone was plugged in at all is the "battery charging" icon on my phone.
What I've Done
I use a good data cable that used to work, and have bought and tried a new one. I have tried 2 other computers. I have reinstalled the USB drivers. I have pulled the battery from my phone, waited, and put it back in. I just did a factory reset. Nothing has changed.
I hope someone here can help me figure this out, cause I'm stumped. Please let me know if I can provide any more info. Thanks!

Go into developers options in settings. Make sure usb debugging is turned off. Try that.
Sent from the future via Tapatalk 4

edfunkycold said:
Go into developers options in settings. Make sure usb debugging is turned off. Try that.
Sent from the future via Tapatalk 4
Click to expand...
Click to collapse
Hey, thanks for the response! I tried it, no effect. Any other ideas?

Did you try to remove S3 in device manager in your PC and plug S3 in ?

khicau said:
Did you try to remove S3 in device manager in your PC and plug S3 in ?
Click to expand...
Click to collapse
There is no s3 in my device manager. Device manager doesn't show, in any way that I have my phone attached. No message, no change, even after repeatedly scanning for hardware changes. I've plugged this phone into 3 different computers and its the same on each. Thanks for the advice though! Any other ideas out there?

Install the latest drivers from the Samsung website. This should solve the issue.
Sent from my SPH-L710 using xda app-developers app

aez101 said:
My Phone
Hi, Uber-noob here. I have the sprint samsung gs3, Model number sph-l710, android version 4.1.2. I had stock rooted my phone via QBKing77's video (thanks man!) and had had no problems, including connecting my phone by USB (PDA net, Odin, etc.) to my PCs.
My Problem
For no reason I can see, my laptop(s) stopped recognizing my phone. There is no message, the pc acts as though nothing was plugged in, no message. Device manager shows nothing either. The ONLY sign that my phone was plugged in at all is the "battery charging" icon on my phone.
What I've Done
I use a good data cable that used to work, and have bought and tried a new one. I have tried 2 other computers. I have reinstalled the USB drivers. I have pulled the battery from my phone, waited, and put it back in. I just did a factory reset. Nothing has changed.
I hope someone here can help me figure this out, cause I'm stumped. Please let me know if I can provide any more info. Thanks!
Click to expand...
Click to collapse
You said you tried a good cable, but is it the original cable? My phone is kinda wonky some times when I don't use the original usb cable.
Sent from my SPH-L710 using xda app-developers app

DizzyMP said:
You said you tried a good cable, but is it the original cable? My phone is kinda wonky some times when I don't use the original usb cable.
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
Hi, it was actually the original cable that started messing up. The cable I have now was a replacement and I've had no problems with it whatsoever till recently. Thanks for the feedback though!

nick benedetto said:
Install the latest drivers from the Samsung website. This should solve the issue.
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
I did that just now. Unfortunately it didn't work. Thanks for the help! Any other ideas?

aez101 said:
I did that just now. Unfortunately it didn't work. Thanks for the help! Any other ideas?
Click to expand...
Click to collapse
I would still try another cable because I've cables quit working out of the blue before. Also, it may help if you go to device manager and uninstall/remove your USB hub and then restart your computer...it will automatically detect and reinstall it.

I would try with a linux livecd/liveusb to rule out a driver issue. Also try a different cable. Or make sure your cable works - try with another device or computer.
And there really should be no need for extradrivers if you plug it in a mass storage mode. At least my two phones work with Win7, Ubuntu and Crunchbang otb.
Sent from my HUAWEI P6-U06 using Tapatalk 4

aez101 said:
I did that just now. Unfortunately it didn't work. Thanks for the help! Any other ideas?
Click to expand...
Click to collapse
Open Dialer enter ##3424#
When PhoneUtil Opens Select PDA
Tap Qualacomm USB Setting
Select MTP+ADB
Tap OK
Let me know if that does the trick

zordo said:
I would try with a linux livecd/liveusb to rule out a driver issue. Also try a different cable. Or make sure your cable works - try with another device or computer.
And there really should be no need for extradrivers if you plug it in a mass storage mode. At least my two phones work with Win7, Ubuntu and Crunchbang otb.
Sent from my HUAWEI P6-U06 using Tapatalk 4
Click to expand...
Click to collapse
Hello, I'm not familiar with linux at all so that would be more of a last resort. However, I have tried multiple computers and a brand new data cable so that is not the answer probably. I appreciate the suggestion though!

hoesers said:
Open Dialer enter ##3424#
When PhoneUtil Opens Select PDA
Tap Qualacomm USB Setting
Select MTP+ADB
Tap OK
Let me know if that does the trick
Click to expand...
Click to collapse
That was a good idea! But it didn't work unfortunately. I'm starting to think that I may have a bad micro USB port in my phone. But the phone charges just fine, so I dunno. I hope you have more ideas? Thanks a lot dor the advice!

Yeah could be one of the pins in the port is messed up. Would explain why it charges, but no data connection.

I swear I tried every suggested solution out there – uninstalling and reinstalling drivers. Rebooting in download mode and trying to get phone and PC top lay nice. I accessed all those hidden settings and poked around with the settings. Three hours of tooling around the web looking for solutions and I got nowhere. Then I came across some obscure site where somebody suggested the pins might be off. With the care of a surgeon, I slipped the tip of a knife into my phone's USB port and nudged it every so slightly. Plugged and in and there was that elusive USB symbol, offering up all those grand options. I would've bet anything that this was some complex driver issue, but no. It was a slightly bent pin in that tiny opening at the bottom of my SIII. I'm not sure if I should be elated or annoyed at all the time wasted. I hope you guys find your own solutions, whatever they prove to be. Yeeeeeeeeeeeeeesh.