show “unknow device”when connect to PC(Win7) - Nexus 7 Q&A, Help & Troubleshooting

Hi guys,
When I connected my Nexus7(wifi 8G CM10) to my PC( Win 7) , OS always shows"unknown device".
I tryed to re-install N7 driver in my PC but failed.
I tryed to connect PC at N7 fastboot interface but also failed.
I tryed to change different USB cable with different PC, failed again.
It can charge my N7 when I connect to PC.
Is anybody meet the same question? could you please help me to solve this problem?
Thank you.

Which Android Composite ADB Interface Driver version did you try to install?

gghxr said:
Hi guys,
When I connected my Nexus7(wifi 8G CM10) to my PC( Win 7) , OS always shows"unknown device".
I tryed to re-install N7 driver in my PC but failed.
I tryed to connect PC at N7 fastboot interface but also failed.
I tryed to change different USB cable with different PC, failed again.
It can charge my N7 when I connect to PC.
Is anybody meet the same question? could you please help me to solve this problem?
Thank you.
Click to expand...
Click to collapse
install this and then install the drivers. should be easy

You should also uninstall any existing Android 1.0 or Nexus 7 drivers from Device Manager (you can type it in the start menu, or WIN+R and run devmgmt.msc) before moving forward.

Install Nexus 7 windows drivers from Asus site. They release proper drivers for windows 7 and 8 and nobody seems to know about it.
http://support.asus.com/Download.aspx?SLanguage=en&m=Nexus+7&p=20&s=16
Also I have a tutorial on how to properly setup adb for any device in win 7 and 8 no need to download anything beyond 2Mb here:
http://forum.xda-developers.com/showthread.php?t=2270429
Sent from my SPH-L710 using Tapatalk v2
Team SXTP

Related

[Q] MAGLDR can't install driver

Hi guys, i am trying to flash the wp 7.8 rom and i have downloaded the samsung drivers ..note: i also have rev 1.3 . so i go into magldr on phone and plug usb in and it says "installing drivers" than it says it cannot install...does anyone have any ideas... btw i am using parallels windows 7 on a mac
same problem..
geauxlsu83 said:
Hi guys, i am trying to flash the wp 7.8 rom and i have downloaded the samsung drivers ..note: i also have rev 1.3 . so i go into magldr on phone and plug usb in and it says "installing drivers" than it says it cannot install...does anyone have any ideas... btw i am using parallels windows 7 on a mac
Click to expand...
Click to collapse
Might be a little late, but which drivers are failing to install? I had a couple of issues getting everything configured on Windows 8 64-bit. For the Samsung USB drivers I had to use Compatibility mode for Windows 7 to get them to install. When I installed Windows Mobile Device Center drivers for the DFT image installer, I had to use compatibility mode for Windows Vista. Might want to try using the compatibility mode and see if it helps. You can right-click on the .exe for the driver install and go to the compatibility tab to set the version.
See here for much more detail: sevenforums.com/tutorials/316-compatibility-mode.html
I had the same issue on Windows 8. I then tried it in Windows 7, even then it failed. Then I restarted the system and soon the driver got installed.

[Q] PC always try to install MTP drivers with N7

I have a Nexus 7 that used to be able to be seen (and trnasfer files) on my Win 7 64-bit Ultimate pc. It is not visible in Explorer now- think it happened after upgrade to 4.2.2
I have tried various ways and means from this site and others but still unsuccessful. My pc kept wanting to install MTP USB drivers everytime I plug the N7 into it even when I have it set as PTP; and the drivers always failed.
I downloaded the Universal naked Drivers and tried to install it as well but problem is that my device only show up as MTP USB (under portable devices) instead of as N7; and under that the drivers is always the failed MTP USB drivers. I cannot browse to install Universal Drivers here cos the pc will not accept it.
Really running out of my wits. Any advises please?
Thanks.
I had initial problems connecting to my pc after installing all the drivers from a toolkit. After searching, I followed a tip and installed pdanet on my phone and pdanet for android on my pc. Now I connect exactly like my phone or other storage with full access to the user storage on the n7 from the pc. Win 7 pro 64bit.

[HOWTO] Installing HTC Drivers for adb/fastboot on Windows 8

Mod Message: OP's link is down. Please search the comments to find other's mirror. But please remember to use AV software to scan before you proceed to install, in case of malware or virus!
Instructions to installing HTC Drivers on Windows8 64Bit:
==========================================
1. Download the Windows7 (64 Bit) drivers here - R[COLOR="Red"]emoved[/COLOR]
2. Unzip to any location you want. Just remember where you put them.
3. Plug in your phone to your USB cable.
4. Open your Device Manager (Windows Key + X and select Device manager) and locate HTC under Other Devices and right click on it and select Update Driver Software
5. Select "Browse my computer for driver software"
6. Click Browse and then select the folder you unzipped with the drivers in it then click next.
7. It should now install your drivers and then in your device manager it will now show up "My HTC" under Android USB Devices.
Hope that helps anyone having troubles getting USB/HTC drivers working on Windows 8 (64bit).
*NOTE* I'm not sure if this will be the same for you guys but I had to plug my phone into USB slot 2. USB slot 3 would not work.
Just a little heads up
All credit for this guide goes to Hippie459MN for the original thread. Be sure to thank him for his work
I'm just posting it in this forum because it works fine and a lot of people aren't aware of this method
Awesome man. Don't even have my One but if I have problem with Windows 8, it's great that you already posted a solution.
Sent from my iPhone using Tapatalk 2
It took me quite a while of searching to actually find that guide but I'm glad I did otherwise I couldn't have unlocked my bootloader or rooted
Been trying to get the driver to work on my W8 laptop for my E3D. This worked for it after spending hours trying all sorts. Thanks a million. I will be sure to go through to the other thread and say thanks too.
If only I saw this before I spent hours last night trying to get adb to recognise my phone. I somehow got there in the end but this would've saved me a good two hours!
Sent from my HTC One using xda premium
Yeah, that's the guide I used a couple of weeks ago. Think I might have posted it in the rooting tutorial thread....would have been lost without it.
Sent from my HTC One using Tapatalk 2
cynogenmod jbean cm-10.1-20130411-EXPERIMENTAL-endeavoru-M3
I just lost connection to lappy after installing this rom...though device is getting recognized it wont let me update driver using guide can you help plz
:crying:
Bumping up
installed the drivers as instructed below but with win8 / 64-bit i can't get the one to mount the sdcard.
seems to work just fine on my win7 machine. any help with this?
trant01 said:
installed the drivers as instructed below but with win8 / 64-bit i can't get the one to mount the sdcard.
seems to work just fine on my win7 machine. any help with this?
Click to expand...
Click to collapse
it should show up as an MTP device when you plug it in
cachookaman said:
it should show up as an MTP device when you plug it in
Click to expand...
Click to collapse
i can't install a driver for the MTP device. should it be in that zip? i'm trying to get it to install from that directory and it says it can't find a driver for it....
Tried this technique and it still won't work.
Here's what I'm doing
- Uninstall all current drivers & HTC Sync
- Restart PC
- Your method exactly
- Restart PC
Phone when on normally connects to adb just fine,
but when I put it into the bootloader it takes around 15 seconds to detect it and then says it's unrecognised and gives the error below:
Device doesn't start. (Code 10)
A request for the USB BOS descriptor failed.
Any help would be appreciated. For now, I'm running a copy of W7 on an old 2.5" drive... not ideal.
Tried this technique and it still won't work.
@petedavison93 and the owner of this thread, did you guys find a fix to pete's issue as I'm having the same issue as Pete, please help!
Had the same issue and installed different drivers several times without luck.
It was fixed for me by simply plugging in the phone into an USB port at the motherboard. The front USB and additional USB3 ports at the PC were not working, when the device is booted to the bootloader. They are working with adb only, when the phone is running normal.
I am running Win8x64.
Great Instructions
KidCarter93 said:
Instructions to installing HTC Drivers on Windows8 64Bit:
==========================================
1. Download the Windows7 (64 Bit) drivers here - http://d-h.st/23V
2. Unzip to any location you want. Just remember where you put them.
3. Plug in your phone to your USB cable.
4. Open your Device Manager (Windows Key + X and select Device manager) and locate HTC under Other Devices and right click on it and select Update Driver Software
5. Select "Browse my computer for driver software"
6. Click Browse and then select the folder you unzipped with the drivers in it then click next.
7. It should now install your drivers and then in your device manager it will now show up "My HTC" under Android USB Devices.
Hope that helps anyone having troubles getting USB/HTC drivers working on Windows 8 (64bit).
*NOTE* I'm not sure if this will be the same for you guys but I had to plug my phone into USB slot 2. USB slot 3 would not work.
Just a little heads up
All credit for this guide goes to Hippie459MN for the original thread. Be sure to thank him for his work
I'm just posting it in this forum because it works fine and a lot of people aren't aware of this method
Click to expand...
Click to collapse
I have the HTC EVO V 4G (Virgin Mobile) The ONLY difference on my installation of the drivers was under Other Devices, instead of HTC mine was listed as EVO. Worked perfect first try..TY
Great post
Great post and link, this worked straight away and allowed direct connection to Eclipse
Thankz I must try this looking for this
I just install HTC sync, done deal.
Sent from my HTC One using Tapatalk 2
Anyone happen to know where I can find some windows 7 32bit drivers. Windows 8 32bit isn't a fan of 64bit software.
It isn't a problem with the HTC drivers. It's the usb drivers from Ms for Intel 3.0 bus. I found a thread that I'm searching again for that give the instructions on replacing the signed ms driver with an unsigned win 7 64bit host controller driver. It's two files and you need to first allow unsigned drivers in windows security. Needless to say it's fine now on my 3 ports.
Sent from my HTC One using xda premium

Nexus 4 appears as unknown device

Hello, I am trying to connect my nexus 4 to my computer to put some music on. This used to work, but now it is being detected as an unknown device. I tried updating the drivers to the Universal Naked driver, but it just says the best driver is already installed. I tried with USB debugging on and off, no difference. Also tried 2 different usb cables.
Cyanogenmod Version: 10.1.1-mako
Build: JDQ39E
Thank you for any help!
jining said:
Hello, I am trying to connect my nexus 4 to my computer to put some music on. This used to work, but now it is being detected as an unknown device. I tried updating the drivers to the Universal Naked driver, but it just says the best driver is already installed. I tried with USB debugging on and off, no difference. Also tried 2 different usb cables.
Cyanogenmod Version: 10.1.1-mako
Build: JDQ39E
Thank you for any help!
Click to expand...
Click to collapse
What OS are you using? Windows? Mac? A linux distro?
Also, are you sure you're using MTP instead of PTP (Settings > Storage > menu > Usb Computer Connection) ?
You can try to install google's drivers from the android sdk as well.
vorbatello said:
What OS are you using? Windows? Mac? A linux distro?
Also, are you sure you're using MTP instead of PTP (Settings > Storage > menu > Usb Computer Connection) ?
You can try to install google's drivers from the android sdk as well.
Click to expand...
Click to collapse
I am using Windows 7, it was set to PTP, I just set to MTP, but it still does the same thing. I have turned off my USB debugging in the developer menu as well.
jining said:
I am using Windows 7, it was set to PTP, I just set to MTP, but it still does the same thing. I have turned off my USB debugging in the developer menu as well.
Click to expand...
Click to collapse
I know this is a silly thing to ask, but have you tried rebooting your phone? Something like this happened to me before and a reboot fixed it.
Also, if you have a custom kernel, check that you have USB fast charge disabled. And after that fails, try installing google's drivers. Sorry, I'm just spouting out random ideas at this point.
vorbatello said:
I know this is a silly thing to ask, but have you tried rebooting your phone? Something like this happened to me before and a reboot fixed it.
Also, if you have a custom kernel, check that you have USB fast charge disabled. And after that fails, try installing google's drivers. Sorry, I'm just spouting out random ideas at this point.
Click to expand...
Click to collapse
Thanks for the suggestions. I am using Franco kernel, how do I turn off fast charge?
jining said:
Thanks for the suggestions. I am using Franco kernel, how do I turn off fast charge?
Click to expand...
Click to collapse
Use trickster mod and go to the Kernel Specific page. If fast charge is ticked off, there's not much we can do from there.
https://play.google.com/store/apps/details?id=com.bigeyes0x0.trickstermod&hl=en
Also, have you tried to install google's drivers or make a nandroid and reflash a clean rom?
EDIT: You could also try Koush's universal driver: https://plus.google.com/103583939320326217147/posts/BQ5iYJEaaEH
I'm afraid I'm out of ideas at this point
vorbatello said:
Use trickster mod and go to the Kernel Specific page. If fast charge is ticked off, there's not much we can do from there.
https://play.google.com/store/apps/details?id=com.bigeyes0x0.trickstermod&hl=en
Also, have you tried to install google's drivers or make a nandroid and reflash a clean rom?
EDIT: You could also try Koush's universal driver: https://plus.google.com/103583939320326217147/posts/BQ5iYJEaaEH
I'm afraid I'm out of ideas at this point
Click to expand...
Click to collapse
Hmm I am in the trickster mod on the kernel specific screen, but I don't see anything about USB fast charge Where might I get googles drivers? I can't seem to install any drivers because as soon as I uninstall the unknown device, it auto installs some drivers.
Thanks for the help!
jining said:
Hmm I am in the trickster mod on the kernel specific screen, but I don't see anything about USB fast charge Where might I get googles drivers? I can't seem to install any drivers because as soon as I uninstall the unknown device, it auto installs some drivers.
Thanks for the help!
Click to expand...
Click to collapse
So I tried installing the newest Franco kernel Milestone (3), and the USB fast charge is off. I also tried installing a different CM mod, but there is no difference. I also tried installing the universal you gave me, but that didn't work, and i installed the google driver from SDK and that didn't work.
I don't know what else to do...
Hi, try to completly unninstall ALL drivers for nexus, samsung or android related, than install official drivers for nexus 4 and then connect nexus 4. Should work.
maxiiik said:
Hi, try to completly unninstall ALL drivers for nexus, samsung or android related, than install official drivers for nexus 4 and then connect nexus 4. Should work.
Click to expand...
Click to collapse
I tried that, no luck...I don't know what else to do, I have tried 3 different cables. I tried using the drivers that come with the nexus 4 toolkit, but no luck. It charges when plugged in, but i get nothing else. Also it seems like half the time its not even in the device manager as an unrecognized device, and then it intermittently pops up a window saying unrecognized device detected... maybe my USB port is broken on the phone?
Is there something simple I have overlooked to get 4.2.2 to work with my computer?
jining said:
I tried that, no luck...I don't know what else to do, I have tried 3 different cables. I tried using the drivers that come with the nexus 4 toolkit, but no luck. It charges when plugged in, but i get nothing else. Also it seems like half the time its not even in the device manager as an unrecognized device, and then it intermittently pops up a window saying unrecognized device detected... maybe my USB port is broken on the phone?
Is there something simple I have overlooked to get 4.2.2 to work with my computer?
Click to expand...
Click to collapse
Have you managed to solve this? I'm facing almost the same problem!
No, I tried for hours with no luck. I am glad I am not the only one, hopefully a solution will come to us. I have been using airdroid to transfer files from my phone in the mean time.
Im also having the same issue except my computer only recognizes my phone when its connected as a camera.
Sent from my Nexus 4 using xda app-developers app
I am having a similar problem with my daughter's Nexus 4 phone, which is not rooted nor unlocked - it is still completely stock. It was just updated to Android 4.3, however I can't say that this is the cause of the problem because she never attempted to connect her phone to the desktop machine before.
I have a Windows 7 x64 box at home, and spent over two hours last night trying to get the computer to correctly recognize the Nexus 4 phone. I was hoping that the standard MTP Windows driver would handle it perfectly, but no luck. I tried the Google usb drivers, and the ADB interface was recognized, but still no access to the internal storage. I then gave the Naked Drivers a try, and no joy there either.
I am beginning to suspect that the MTP drivers on my desktop are munged, but do not relish the thought of a Win 7 wipe and reinstall.
Anyone else have any ideas?
Thanks much!
I am having a similar problem where I have USB storage set to MTP and Windows doesn't pick it up, whereas PTP Windows will pick up but I can't access any folders other than the camera related folders like DCIM.
So my workaround is doing it the old fashioned way through CMD in windows using adb push.
Example:
Assuming you have all the stuff you want to transfer in a folder called stuff, adb is located in C:\adb, and your folder known as stuff is also in C:\adb:
C:\adb>adb push stuff /data/media/0
The above command starting from the ">" will transfer all files in the folder called stuff to the root of /sdcard. In the N4, /sdcard is symbolically linked to /data/media/0.
Of course you need USB debugging enabled for this to work...
Device Manager (Hopefully this helps)
In the start menu type device manager, in that window you should see android and or something similar at the top. You want to drop the menu down and right click what should say Google ADB Interface and delete it, make sure you check the confirmation box. After reboot your computer! Once booted plug your phone in a viola!!!
I'm having a similar issue.
I can open device manager but there in no Android anything listed. All that comes up when I plug my phone in is 'unrecognized usb device'. I have 5 different cable I have tired. The OS will only bring up the usb error in a USB 3.0 port. It will not do anything if I use the 2.0 port.
I have gone and tried to manually update the drivers through the device manager but when I select the drivers from Android SKD or any of the other driver packs I get an error that it is not a x64 driver.
I found one suggestion about modding the driver to include the device but windows will not even recognize the device other than a unknown usb.
I'm going to have a bricked computer soon. Any help would be appreciated.
Roktgr said:
I'm having a similar issue.
I can open device manager but there in no Android anything listed. All that comes up when I plug my phone in is 'unrecognized usb device'. I have 5 different cable I have tired. The OS will only bring up the usb error in a USB 3.0 port. It will not do anything if I use the 2.0 port.
I have gone and tried to manually update the drivers through the device manager but when I select the drivers from Android SKD or any of the other driver packs I get an error that it is not a x64 driver.
I found one suggestion about modding the driver to include the device but windows will not even recognize the device other than a unknown usb.
I'm going to have a bricked computer soon. Any help would be appreciated.
Click to expand...
Click to collapse
First, Google universal naked drivers xda. Try those. If they don't work go into device manager and go to where it says let me choose drivers from my computer. Then look for the android composite adb interface.
If you're on win 8 you'll need to allow unsigned drivers. Google how to do that
Sent from my Nexus 5 using XDA Free mobile app
jd1639 said:
First, Google universal naked drivers xda. Try those. If they don't work go into device manager and go to where it says let me choose drivers from my computer. Then look for the android composite adb interface.
If you're on win 8 you'll need to allow unsigned drivers. Google how to do that
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
Windows 7x64 on all machines. I am trying this on 2 work computers and getting the same result. I have 2 issues that I think are the root of the issue.
#1 is the phone doesn't do anything in USB debug mode. I keep seeing references to having to approve the computer connection but I haven't seen that yet. I have tired 9 usb ports. 6 on my main computer will not bring anything, not even the usb drive. 3 on the labtop will only bring up a 'unrecognized usb drive'.
#2 is the computer will not recognize the device in anything other than a 'unrecognized usb drive' (UUD). Everyone keeps mentioning the Android Composite ADB interface. It's not there, it doesn't show up or as an option. I can go into the device manager and find the UUD and try and update the driver via the manual method with a disk but it doesn't list any type of hardware that is related to Android or ADB.
Roktgr said:
Windows 7x64 on all machines. I am trying this on 2 work computers and getting the same result. I have 2 issues that I think are the root of the issue.
#1 is the phone doesn't do anything in USB debug mode. I keep seeing references to having to approve the computer connection but I haven't seen that yet. I have tired 9 usb ports. 6 on my main computer will not bring anything, not even the usb drive. 3 on the labtop will only bring up a 'unrecognized usb drive'.
Click to expand...
Click to collapse
Hello,
"#1 is the phone doesn't do anything in USB debug mode." This is normal!
How I experienced the USB debugging option is that, if turned ON:
1. The Nexus does not appear in my Windows env
2. BUT when in recovery mode, I can use the "adb" commands
If USB debugging turned OFF:
1. Then I CAN see the Nexus in my Windows env
2. BUT I cannot use the "adb" commands in recovery mode.
So you definitely need to have the USB debugging option turned off if you want to see your nexus in Windows, IMO
---------- Post added at 04:16 PM ---------- Previous post was at 04:02 PM ----------
Roktgr said:
Windows 7x64 on all machines. I am trying this on 2 work computers and getting the same result. I have 2 issues that I think are the root of the issue.
#2 is the computer will not recognize the device in anything other than a 'unrecognized usb drive' (UUD). Everyone keeps mentioning the Android Composite ADB interface. It's not there, it doesn't show up or as an option. I can go into the device manager and find the UUD and try and update the driver via the manual method with a disk but it doesn't list any type of hardware that is related to Android or ADB.
Click to expand...
Click to collapse
I think you really have an issue with the drivers. I would install the Google USB drivers. Maybe a bit heavy but then you can be sure that drivers are fine:
http://developer.android.com/sdk/win-usb.html

[Q] Nexus 4 bricked up bad

My nexus 4 went crazy last week. I was trying out Lucky Patcher on one of my apps (I wanted to develop something against it). But since then, my phone can't connect to my computer: According to the computer, "The last connected device malfunctioned." I went to recovery and wiped EVERYTHING(including internal storage). It worked a little and I got another ROM on, but now its happened again and I can't connect it to the computer AT ALL. I have no ROM and my phone is now literally, a(n almost) useless brick. Recovery works, but without a ROM on it I can't do anything. I haven't been able to use it and it's driving me crazy. Can anybody please help?My computer first gave me error code
Using: twrp-3.0.0-0, Windows 10.0.10586(You can check it out in a terminal: Just type in "cmd")
Was using: CataclysmMod-Marshmallow-Dec_08_2015-MAKO-MMB29K_Stable, Click here for details
Lucky Patcher v6.0.8, Layers, Titanium Backup (Among other things)
Uninstall your nexus drivers from Windows, reboot, and install them again. Also try a different USB port and a USB cable, and if nothing helps, a different computer. I remember that one day I wasn't able to flash /system partition of a stock ROM from fastboot because it gave me a strange error. Since then, everyhing is ok.
When you manage to go in fastboot mode, flash a stock image (using erase command for each partition), and only then flash a custom ROM. In this way everything will be nice and clean.
I tried doing what you said, but:
Windows Explorer said:
"USB device not recognized:
The last USB device you connected to this computer malfunctioned, and Windows cannot recognize it."
This is when I uninstalled and reinstalled the drivers
Try a window 7 machine? Try different USB cables and USB ports?
audit13 said:
Try a window 7 machine? Try different USB cables and USB ports?
Click to expand...
Click to collapse
For some odd reason, the drivers I'm installing(different computer) for fastboot aren't working.
Problem is:
When I try 'installing legacy hardware':
The driver error code: 'The device cannot start(code 10)'
When I try Updating device driver software:
With the 'Have disk' method:
Error: The driver is not correct. Please check if the driver is for windows x64 operating systems.
With the direct 'browse for folders on my computer' method:
Windows has 'determined' that your driver is up to date
Can anybody help? I was using the Google USB driver (click here for link)
Windows x64 10.0.10586
Are you using a win 7 machine? I have never had problems with fastboot on a win7 machine, only win8 and 10.
Maybe these will work: http://forum.xda-developers.com/goo...nt/adb-fb-apx-driver-universal-naked-t2513339 ?
This is win10
AANNDD I'm having problems with the Universal naked drivers: check it out (Click here)
THANK YOU EVERYBODY for your help and assistance, my phone is now fixed, reverted to its unrooted form. I'm just so relived it's fixed!!!
How did you fix the phone? Share your solution as it may help other XDA members with a similar issue.
Use the Qualcomm HUSB method, I fixed my phone same way too.
Sent from my Nexus 4 using XDA-Developers mobile app

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