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.

Nexus 7 not recognized by adb or fastboot

I plugged my Nexus into my computer(running windows 8) and it was recognized so I thought the drivers were installed but then I got the nexus toolkit and selected unlock bootloader but while I was in fast boot it hangs there saying wait for device... I tried to install the drivers from the toolkit and still it says waiting for device. Any ideas?
Sent from my Nexus 7 using Tapatalk HD

Make sure the drivers were installed correctly. I've read some threads past that there was an issue installing the drivers in Windows 8.

Did you turn on USB debugging? Go to the "About Tablet" section in settings and tap on "Build Number" a couple of times. It should say "You are a developer!". This unlocks developer options in the main settings. From here you can enable or disable USB debugging. Try whatever you are doing again and it should (hopefully) work.
Sent from my Nexus 7 using xda premium

same problem here.
I tried to install the ASUS driver on my XP machine. But the installation wizard keeps saying "Parameter is incorrect" or "Cannot start hardware"

Just to be sure, you ARE using the cable which arrived with your Nexus 7 right? Because I used a SGS3 cable and it didn't work though it fit nicely
Sent from my Nexus 7 using xda app-developers app

I had the same problem. Very frustrating. Sounds like you guys need to open the device manager on your PC and uninstall every Google, android, nexus7 or any other phone driver installed.(HTC,samsung) all of them. Also check in USB drivers. Get rid of them.
Reboot your PC.
Make sure USB debugging is enabled on the nexus.
Power the nexus off. Enter fast boot on the nexus. Power-volume up-down. Connect your nexus to the PC and let the drivers install on their own.
Go back and check your device manager on the PC and look for a yellow exclamation mark on your android, Google, adb or nexus driver installed. Right click it and select updated driver.
Let me know if this helps.
Sent from my Nexus 7 using XDA Premium HD app

It helped, tnt0303. Thx.

I had same issue. In fast-boot mode it was always giving the yellow exclamation mark. This is what I did to install the drivers.
Device Manger ->Nexus 7(yellow exclamation mark) -> right click -> Update driver ->Let me pick from the list of device drivers on my computer-> select show all devices->next->Have Disk->browse to folder where you unzip nexus drivers then -> ok ->select Android bootloader drivers
Hope this helps

[Q] USB and recovery problems after OTA upgrade to 4.3

I took the OTA to 4.3 on my Nexus 7. It was previously unlocked and rooted, but had no kernels, etc changed. After the update ran, I lost root as expected, however, in trying to get it back, I've discovered I'm having a couple of other issues.
First, the device is no longer working properly via USB on my PCs. On both my Win 7 and Win 8 PCs, the device won't properly connect to where I can browse files or anything else. On the Win 8 computer, I see a Nexus 7 device in Device manager, but drivers won't install. I downloaded the drivers from the Asus site, but trying to manually install them doesn't work on the Win 7 machine, and on the Win 8 machine, they install but don't seem to be working with the Nexus 7 as it still shows a problem in Device Manager.
The tablet also will not boot into recovery mode. I can power it up into fastboot mode, but if I select "Recovery Mode" and hit the power button, I just got the Android with the red triangle for a few minutes before it boots back into the OS. After doing some searching, I saw where you might need to have it plugged into a PC to get it to go into recovery, but that doesn't work, either (might be tied to the USB problem).
Ideas?

Did you turn on developer options, and USB debugging? Have you tried USB connection type PTP instead of MTP?
If you have the stock recovery, the red triangle and Android are normal. You can bring up a blue options menu by pressing the power and volume up buttons from the red triangle Android.
Sent from my rooted Nexus 7 @ 49.4 mpg

exglynco said:
Did you turn on developer options, and USB debugging?
Sent from my rooted Nexus 7 @ 49.4 mpg
Click to expand...
Click to collapse
Yes.

Try another driver source. Wugfresh's installation is a lot tougher than Skipsoft's, but try the other guy 's system.
Sent from my rooted Nexus 7 @ 49.4 mpg

exglynco said:
Try another driver source. Wugfresh's installation is a lot tougher than Skipsoft's, but try the other guy 's system.
Sent from my rooted Nexus 7 @ 49.4 mpg
Click to expand...
Click to collapse
I was using the stock drivers off the Asus page. I'll look around for the two you mention. I assume they're posted on here somewhere.

And about the recovery just try flashing another recovery from fastboot
Code:
fastboot flash recovery recovery.img
Sent from my Nexus 7

Red Devil said:
And about the recovery just try flashing another recovery from fastboot
Code:
fastboot flash recovery recovery.img
Sent from my Nexus 7
Click to expand...
Click to collapse
Without USB access? That's my dilemma.

OK, I'm getting closer. I got TWRP installed and rerooted it. I had to do the "Revoke USB debugging authorizations" on the Dev Options screen. Then it would work via ADB.
Still not browsing files yet on my desktop, but at least I know I'm talking to it. So now I'll play with the driver installation a bit.
EDIT: Well, drivers reinstalled for about the 4th time, and it's still not allowing me to browse files from my desktop. Galaxy S4 works fine as soon as I plug it in, even if I also uninstall it's drivers. Ideas? I obviously have it working over USB because I can give it commands and reboot it via the PC.

OK, try this one. Plug in your tablet to pc, go to hardware manager, find your Android Device then choose Uninstall (choose Remove all drivers for this device), unplug and plug in your tablet again. Your Windows should discover few new devices (mine has discovered three) and download drivers for them then you should see Android ADB Interface in Android Devices and Nexus 7 in Mobile Devices.
--edit--
I've solved my issue
http://forum.xda-developers.com/showthread.php?p=44322739#post44322739

Already been done that road multiple times.

have the same problem except one thing: no one 3 computers don`t detect my nexus. have no reaction in device manager, on connection nexus as mtp/debug/fastboot. Only usb-otg works.

xxut said:
have the same problem except one thing: no one 3 computers don`t detect my nexus. have no reaction in device manager, on connection nexus as mtp/debug/fastboot. Only usb-otg works.
Click to expand...
Click to collapse
After you plug your nexus in have you unlocked the screen to see if it is asking you to authorize the tablet?
What other steps have you taken? Have you installed proper drivers? Have you manually chosen to update drivers with the sdk drivers if in device manager is showing the nexus? Have you tried the drivers from Asus?
Sent from my Nexus 7 using Tapatalk 4 Beta

SlowCobra96 said:
After you plug your nexus in have you unlocked the screen to see if it is asking you to authorize the tablet?
What other steps have you taken? Have you installed proper drivers? Have you manually chosen to update drivers with the sdk drivers if in device manager is showing the nexus? Have you tried the drivers from Asus?
Sent from my Nexus 7 using Tapatalk 4 Beta
Click to expand...
Click to collapse
I personally did all of those things. After having the Nexus "forget" all the other PC authorizations on the dev screen, I finally got it to accept ADB commands, just not to properly install drivers that would allow me to browse files like it had done on 4.2.

SlowCobra96 said:
After you plug your nexus in have you unlocked the screen to see if it is asking you to authorize the tablet?
What other steps have you taken? Have you installed proper drivers? Have you manually chosen to update drivers with the sdk drivers if in device manager is showing the nexus? Have you tried the drivers from Asus?
Sent from my Nexus 7 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Nexus doesn`t appears in device manager. At all. It starts to charage, but no reaction in device manager, no any reaction(except charging) at nexus. On computer it looks like i didn`t connect anything. I`ve trying to intall drivers as legasy hardware, but nothing changes. Sorry for my english.

xxut said:
Nexus doesn`t appears in device manager. At all. It starts to charage, but no reaction in device manager, no any reaction(except charging) at nexus. On computer it looks like i didn`t connect anything. I`ve trying to intall drivers as legasy hardware, but nothing changes. Sorry for my english.
Click to expand...
Click to collapse
Try turning off usb debugging. My tablet cannot connect to pc but with usb debugging off it at least recognises tablet as a media device and this enables me to view its files
.but still the problem of not being able to root

Problems rooting

Ok I will try and keep this quick and simple.
I am trying to root my new unlocked bootloader Nexus 4 with Wug's toolkit.
With usb debugging enabled, my computer can't find it in fastboot.
I have tried both the universal driver method and the pdanet driver method with all of my usb ports and nothing is working. The pdanet drivers worked for my nexus 7, but they weren't working for the N4, so I uninstalled and reinstalled them for the Nexus 4. (I tried selecting LG first, that didn't work, so I tried Other, which also didn't work)
Can anyone help me?
Thanks

Bilge656 said:
Ok I will try and keep this quick and simple.
I am trying to root my new unlocked bootloader Nexus 4 with Wug's toolkit.
With usb debugging enabled, my computer can't find it in fastboot.
I have tried both the universal driver method and the pdanet driver method with all of my usb ports and nothing is working. The pdanet drivers worked for my nexus 7, but they weren't working for the N4, so I uninstalled and reinstalled them for the Nexus 4. (I tried selecting LG first, that didn't work, so I tried Other, which also didn't work)
Can anyone help me?
Thanks
Click to expand...
Click to collapse
That's odd. Can you use a different computer?

Procyon_82 said:
That's odd. Can you use a different computer?
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Click to collapse
A very old and slow windows xp yes, but I would prefer to fix it on my windows 7 so I can eventually use it to install custom roms.

While it's in debugging mode and plugged into the computer, swipe down your notification bar. It should say connected as mtp. Press on that and change it to the one that says connected as camera. I think that's how the it is... Sorry I can't totally remember, but I know that's the only way my computer recognizes mine. And it will work just fine.
Sent from my SAMSUNG-SGH-I317 using xda app-developers app

Kreateablaze said:
While it's in debugging mode and plugged into the computer, swipe down your notification bar. It should say connected as mtp. Press on that and change it to the one that says connected as camera. I think that's how the it is... Sorry I can't totally remember, but I know that's the only way my computer recognizes mine. And it will work just fine.
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
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Click to collapse
Thanks that did the trick (As well as updating to the new version)

[Q] adb working correctly fastboot wont recognize device

I encrypted my phone without realizing that CWM did not support encrypted devices. To fix this I was going to install TWRP since it does support it. My phone is working correctly with adb but I cannot get fastboot to find the device at all. This is making it so I cannot install TWRP on my phone now. Anyone have any ideas or suggestions? Thanks for any help.

You can install the recovery directly through the phone through Goomanager, but the fact that your computer doesn't recognize the device in fastboot is an issue I feel needs to be addressed. Goomanager solves the problem of the recovery, but I'm not sure about the fastboot issue.
Sent from my Nexus 4 using XDA Free mobile app

mikeric said:
I encrypted my phone without realizing that CWM did not support encrypted devices. To fix this I was going to install TWRP since it does support it. My phone is working correctly with adb but I cannot get fastboot to find the device at all. This is making it so I cannot install TWRP on my phone now. Anyone have any ideas or suggestions? Thanks for any help.
Click to expand...
Click to collapse
I had this issue on a different device. To solve it I went into control panel, device manager. Then look for the usb device that had an exclamation mark on it (with your device plugged into the usb port). Right click on it and update driver software. Then go to browse my computer and choose, let me pick from a list...... Pick the android composite adb interface. It'll ask you if your sure, just say yes
Sent from my Nexus 5 using XDA Free mobile app

jd1639 said:
I had this issue on a different device. To solve it I went into control panel, device manager. Then look for the usb device that had an exclamation mark on it (with your device plugged into the usb port). Right click on it and update driver software. Then go to browse my computer and choose, let me pick from a list...... Pick the android composite adb interface. It'll ask you if your sure, just say yes
Sent from my Nexus 5 using XDA Free mobile app
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Click to collapse
Thank you, thank you, thank you. This enabled MTP mode for me in about 3 seconds on my Windows 8 PC. I had tried using Wug's toolkit both automated and manual even disabling enforcement of digital signatures on driver installation and had also installed latest ADK and Google drivers to no avail (all that got me was connection in camera mode and ability to see only DCIM). I don't remember having this kind of trouble last time I decided to play with my Nexus 4. Not sure if I was using my old Windows 7 machine then or if there is a conflict with the other drivers on my machine (I have recently flashed both Motorola and Samsung devices too). I wish you had posted a couple of hours sooner lol.