Database Users

[need help] usb device not recognized!!!

hey guys,
I don't know if this still a problem with people. but I'm on win7 64bit and I can't seem to connect my nexus s, to my computer. I always have to upload from computer to dropbox then download the file from DB on my phone... usb plug doesn't work. I tried the same cable with my wifes Samsung vibrant and it recognizes it, but when i plug in my nexus s the debug icon shows up on my phones status bar for like 1 second and disappears. then window on my compter says "USB Device Not Recognized"
need help please.

What does it say in device manager (in windows)? Maybe the driver is wrong...
Sent from my Nexus S using XDA Premium App

do u have a right drivers installed
have a look here and check Google USB Driver

I'm having the same problem. I have tried both my computers and multiple cables but I continue to get the error. When I try to update the drivers or reinstall them Windows says the drivers are up to date. I've tried every USB port on both computers as well.
I even took the phone into a repair place to see if perhaps the USB port on the phone was malfunctioning and they couldn't find anything wrong with it.

solarus2011 said:
I'm having the same problem. I have tried both my computers and multiple cables but I continue to get the error. When I try to update the drivers or reinstall them Windows says the drivers are up to date. I've tried every USB port on both computers as well.
I even took the phone into a repair place to see if perhaps the USB port on the phone was malfunctioning and they couldn't find anything wrong with it.
Click to expand...
Click to collapse
Try installing pdanet, I had a similar issue when I rooted my ns and installing the pdanet drivers solved the problem.
Sent from my Nexus S using XDA App

I've been having the problem also and none of the fixes worked. Not even PDA net. You'd think that the more people have this problem so one would have found a real fix by now.

pnnorth said:
Try installing pdanet, I had a similar issue when I rooted my ns and installing the pdanet drivers solved the problem.
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
I can't get the PDAnet drivers to install - during the installation process, my phone has to plugged in, which of course the installation program can't see.
Weird thing is if I remove the battery and then plug the usb in and start the phone, the drivers show up in the device manager but they always disappear before I can unlock the phone - appears the USB connection on my Nexus S is broken...can;t think of anything else.

N4 not showing up at all on PC

I'm not sure when this problem first appeared. For whatever reason, my phone doesn't show up at all when connected to either of my two PCs. It must have when I first rooted the phone (to load ChainSU) but I'm not sure if the problem is recent or occurred immediately thereafter.
USB debugging is disabled. When I plug my phone into a computer, it attempts to install the MTP Driver and fails. When I uninstall my device, it disappears and I'm unable to manually install the driver's I've downloaded from other threads. When I load into the Bootloader, my device is recognized by Fastboot.
I'm hesitant to factory reset as this will leave me unable to root if the problem persists, which is important to me as I can get rid of the yellow tint on this screen.
Any thoughts?
Edit: $10 via Paypal for anyone who successfully helps me to a solution!

Are you definitely sure usb debugging is disabled? The phone should install as a portable device on your pc. Also ensure to enter your password onto your phone when connected otherwise the phone will not show up its contents.

Make sure for windows media player to be updated to the latest, for the windows mtp driver.

duraeas said:
I'm not sure when this problem first appeared. For whatever reason, my phone doesn't show up at all when connected to either of my two PCs. It must have when I first rooted the phone (to load ChainSU) but I'm not sure if the problem is recent or occurred immediately thereafter.
USB debugging is disabled. When I plug my phone into a computer, it attempts to install the MTP Driver and fails. When I uninstall my device, it disappears and I'm unable to manually install the driver's I've downloaded from other threads. When I load into the Bootloader, my device is recognized by Fastboot.
I'm hesitant to factory reset as this will leave me unable to root if the problem persists, which is important to me as I can get rid of the yellow tint on this screen.
Any thoughts?
Edit: $10 via Paypal for anyone who successfully helps me to a solution!
Click to expand...
Click to collapse
There are a few things you can try. Have you tried uninstalling the drivers completely then reinstalling from the toolkit? In the past, I've had issues where the phone wouldn't be accessible in some way on one computer but would be fine on another, so maybe try a different computer to try to narrow down the problem as to whether it's an issue with the phone or the computer? Also, this may sound a bit ridiculous, but simply switching USB cables and / or ports has fixed detection issues for me in the past as well--something to consider.
Sent via Morse code from my Nexus 4

Remove any existing drivers (while phone is connected), do the same for other android devices if you have any, then reboot and install Universal Naked Drivers. Have always had success with this driver pack.

Rizy7 said:
Are you definitely sure usb debugging is disabled? The phone should install as a portable device on your pc. Also ensure to enter your password onto your phone when connected otherwise the phone will not show up its contents.
Click to expand...
Click to collapse
100% sure on both counts.

I have this same issue with my rooted nexus 4, I've tried 3 different computers and several cables and it never connects to the PC and only charges the phone. It doesn't even give me option to choose media files.

I've had this issue before, my Nexus/Computer was acting in complete stupidity. When connecting the phone to your computer you will see a notification saying "Connected as a media device" on your phone, just touch it, and change it to "Camera (PTP)". It might access the camera for you, but It actually accessed the storage for me.

YeledKaki said:
I've had this issue before, my Nexus/Computer was acting in complete stupidity. When connecting the phone to your computer you will see a notification saying "Connected as a media device" on your phone, just touch it, and change it to "Camera (PTP)". It might access the camera for you, but It actually accessed the storage for me.
Click to expand...
Click to collapse
Thats not the problem, it doesn't give any option. It doesn't show up on the computer at all and only charges. It's the same for every computer.

yuriorkis said:
I have this same issue with my rooted nexus 4, I've tried 3 different computers and several cables and it never connects to the PC and only charges the phone. It doesn't even give me option to choose media files.
Click to expand...
Click to collapse
I'm thinking we've screwed something up with the phone's side of the MTP protocol - mine is totally independent of the cord/computer used. All the correct drivers installed.
Have you tried Factory Resetting? I'm really hoping this is a workable option.

If you have a recovery back up the current Rom and flash stock and see if it's working
Sent from my KFTT using xda premium

if the phone is locked with a pin/password/pattern unlock it.

I had same problem on my pc yesterday. Even if the drivers installer showed up that installation was successful, somehow for a mtp mode system was using some other Microsoft driver. Correct one was only used in ptp mode. So when I connected n4 in mtp mode storage wasn't available, when I switched to ptp mode everything was fine. Turn on your usb debug, switch on mtp and connect. Go to device manager in system, find your nexus there and rmb on it and manually reinstall driver. After this my n4 is visible in system in mtp mode again.
Sent from my Nexus 7 using Tapatalk HD

my screen is cracked and phone is useless now (replacement coming tomorrow) can i connect it and wipe it back to factory before i have to send it out?

K0v4L said:
I had same problem on my pc yesterday. Even if the drivers installer showed up that installation was successful, somehow for a mtp mode system was using some other Microsoft driver. Correct one was only used in ptp mode. So when I connected n4 in mtp mode storage wasn't available, when I switched to ptp mode everything was fine. Turn on your usb debug, switch on mtp and connect. Go to device manager in system, find your nexus there and rmb on it and manually reinstall driver. After this my n4 is visible in system in mtp mode again.
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
The problem is that even if I switch between MTP and PTP it still does nothing, I have tried multiple cables, computers and have reflashed the ROM and wiped the device but it still does not connect with the PC. This is frustrating.

yuriorkis said:
The problem is that even if I switch between MTP and PTP it still does nothing, I have tried multiple cables, computers and have reflashed the ROM and wiped the device but it still does not connect with the PC. This is frustrating.
Click to expand...
Click to collapse
Is yours able to connect during Bootloader/Recovery? Fastboot/ADB have no trouble recognizing my device.
It's really odd that if these things work, meaning your USB connection is fine, replacing the all of software fixed nothing... unless MTP occurs at a much lower level of the OS (maybe kernel is corrupted?)

I've got a similar problem that others have posted - PCs not detecting my N4. I got it last Friday (2/1) from Google and after the registering process and updating to 4.2.1, I connected it to my Win7 laptop and it showed on the PC as a drive. But since I couldn't copy/paste Office docs to that drive and had to do that through Dropbox, I didn't bother trying to reconnect until Monday, at which time the PC didn't detect it. Neither will one other Win7 nor two XP (both with WMP10) PCs. Have tried multiple cables, all of which work with other Android devices (pre 3.0). I've seen several suggestions on this and other threads, but one major issue I'm having is that some of the fixes require enabling USB Debugging. For the life of me I can't find that option in the N4's Settings. Unlike my other phones, there is no Applications subcategory under Settings on my N4 (4.2.1, Build JOP40D). Can anyone help me find that option? TIA.
Edit - Found answer. Click on Build in About Phone setting 7 times. That activated Developer options. Now to try the fixes which require USB Debugging mode turned on.

[Q] Computer not recognizing phone when in USB Debugging Mode

I am trying to install the ADB drivers but my phone is not appearing in the device manager at all for some reason. I have USB Debugging mode turned on but all that pops up when I plug my phone in is the auto play that asks me if I want to open the device to view files. I have no android device listed in my device manager to install drivers to. I have tried on two different computers and my phone is not recognized.
I have the google edition on 4.3

have you tried a different usb cable?

jedinegotiator said:
I am trying to install the ADB drivers but my phone is not appearing in the device manager at all for some reason. I have USB Debugging mode turned on but all that pops up when I plug my phone in is the auto play that asks me if I want to open the device to view files. I have no android device listed in my device manager to install drivers to. I have tried on two different computers and my phone is not recognized.
I have the google edition on 4.3
Click to expand...
Click to collapse
Uninstall and then reinstall Kies and try again bro, that should work bro.

Try a different cable. Had an issue was GNex where it charged fine, connected to the computer okay, but couldn't get adb or use odin. Spent hours trying to figure it out, uninstslling, reinstalling, and rebooting everything under the sun. Then thought maybe, just maybe it might be the cable. Swapped it out, and it worked like a charm.
Sent from my SCH-I545 using Tapatalk 4

[Q] Nexus4 wont show up connected to a computer.

When I plug in my nexus4 to a computer it wont show up...most of the time.
I've used 3 different cables.
4 different computers, running, linux mint, win7 and XP.
I installed clocwork mod recovery today and then it showed up as a new device on a XP copmuter but then it would never show up again.
I'm rooted, running carbon ROM, usually with TWRP recovery but switched today.
I've tried it in MTP and PTP modes, debugging on and off.
it charges just fine from a PC.
any ideas are appreciated.

setherd said:
When I plug in my nexus4 to a computer it wont show up...most of the time.
I've used 3 different cables.
4 different computers, running, linux mint, win7 and XP.
I installed clocwork mod recovery today and then it showed up as a new device on a XP copmuter but then it would never show up again.
I'm rooted, running carbon ROM, usually with TWRP recovery but switched today.
I've tried it in MTP and PTP modes, debugging on and off.
it charges just fine from a PC.
any ideas are appreciated.
Click to expand...
Click to collapse
Have you installed the drivers properly?

Pipusz said:
Have you installed the drivers properly?
Click to expand...
Click to collapse
For some of the computers. Today I'm at work and I don't have the drivers installed. I keep my phone plugged in to charge. In the past the PC, running windows XP, always pops up the new device found notification. It won't even do that except for the 1 time mentioned earlier.
it it possible for the recovery image to affect things?

Mine won't show up in my PC (windows 8) If USB debugging is off. I'm fairy certain this behavior started at some point during the rooting process because I had a hell of a time getting the files to the phone.

setherd said:
When I plug in my nexus4 to a computer it wont show up...most of the time.
I've used 3 different cables.
4 different computers, running, linux mint, win7 and XP.
I installed clocwork mod recovery today and then it showed up as a new device on a XP copmuter but then it would never show up again.
I'm rooted, running carbon ROM, usually with TWRP recovery but switched today.
I've tried it in MTP and PTP modes, debugging on and off.
it charges just fine from a PC.
any ideas are appreciated.
Click to expand...
Click to collapse
From what I noticed, when you use a lockscreen with some kind of protection the device memory will not show up if it hasnt't been unlocked in the past few minutes or before connected. This is mostly for security reasons to make sure you are the one accesing the device..
I am not sure if this is the source of the problem you are mentioning but just to let you know

That's not it, I'm doing this with it right in front of me, unlocked
Sent from my Nexus 4 using Tapatalk 4

Have your nexus connected and disable developer settings and delete your adb driver. Then select mtp mode while connected and you should be able to connect now.
Sent from my Nexus 4 using xda app-developers app

FWIW, I have encountered odd connection issues with my Nexus 4 running bone-stock Android.
As I recall, it won't connect to ADB in MTP mode. In PTP mode, it usually works. Personally, I just said "screw it" and starting using MyPhoneExplorer for everything.

Enable USB debugging in your phone. Nuff said.

nothing works, PTP, debugging on/off, etc.

well I finally got a hold of my wife N4, it connects just fine. so I think it's definitely a hardware issue.
Ifixit shows how to replace the daughter board.....but I'd rather send it to LG for warranty replacement but I have it rooted.
If I could just get it to connect once more I would flash it back to stock.

TMobile G2 cant connect to PC over wire

So, I cant seem to be able to connect my G2 to the PC via USB cable. I get "usb device not recognized" error, and when looking for the device via LGPC Suite, it says driver not installed and attempts to re-install the driver to no avail. Im using Win 7 64 bit. Here's what Ive done to attempt to fix it:
Tried uninstalling and reinstalling both the driver and LGPC Suite in my normal user account and in admin admin account.
Redownloaded both driver and LGPC Suite and doing the above.
Tried 3 different USB cables.
Tried 2 different USB ports.
Yes, Im changing the connection options on the phone from MTP and LG Software.
Phone charges normally over USB.
I *can* however connect to LGPC Suite via wifi successfully.
Any ideas? Im stumped.

blackangst said:
So, I cant seem to be able to connect my G2 to the PC via USB cable. I get "usb device not recognized" error, and when looking for the device via LGPC Suite, it says driver not installed and attempts to re-install the driver to no avail. Im using Win 7 64 bit. Here's what Ive done to attempt to fix it:
Tried uninstalling and reinstalling both the driver and LGPC Suite in my normal user account and in admin admin account.
Redownloaded both driver and LGPC Suite and doing the above.
Tried 3 different USB cables.
Tried 2 different USB ports.
Yes, Im changing the connection options on the phone from MTP and LG Software.
Phone charges normally over USB.
I *can* however connect to LGPC Suite via wifi successfully.
Any ideas? Im stumped.
Click to expand...
Click to collapse
Sorry for bumping old thread, but have you found a solution? I found my self in exactly same situation as you describe.
Phone is in LG Software mode
LG Suite can find the phone over Wi-fi, other modes work through USB.
Tried on two different computers, with win7/win8 respectively.
Stock EU ROM, just bought it.
Tried different USB ports.
Yet PC doesn't recognize it :/
EDIT: Never mind, solved it by following the following instructions in another thread:
cmahendra said:
You must be on 64 bit windows. Not even on 64bit, Still try this...
1) Uninstall LG Drivers, LG PC Suite and anything you see named LG. Restart PC.
2) Install latest LG Driver from this post (step 4)
3) Install Optional MTP Driver from this post (step 4)
4) Open Windows Device Manager (just to watch whats happening.)
5) Disconnect Internet (To avoid stupid online WDM drivers)
6) Connect phone with Usb and let drivers install automatically. Give it some time to install drivers keeping watch on Device Manager window.
7) Keep changing USB connect modes to all modes one-by-one on Phone and let drivers install.
You should see MTP drivers installed now. If this does not help, cant think of anything else. If this works, press THANKS button
EDIT: Connect USB at backside of pc, directly to USB on pc motherboard.
Click to expand...
Click to collapse