Device not recognized by PC - One (M8) Q&A, Help & Troubleshooting

I have windows 8.1 and my pc does not recognize my m8. It is connected and charging though, and I am using a USB 2.0 port. USB debugging on. On the device managers, no device shows up. I uninstall all HTC Drivers aswell. Any help? I just need it to have a yellow explanation mark device on device managers, and I know what to do from there.

I tried download HTC drivers but the htcdriver.exe won't bring up an installation window. I'm running out of time as I need to return to stock quickly before Wednesday.

ThePwnie said:
I tried download HTC drivers but the htcdriver.exe won't bring up an installation window. I'm running out of time as I need to return to stock quickly before Wednesday.
Click to expand...
Click to collapse
Try this solution.
[Q] Device not recognized by Windows 8.1

Have you tried different cables and usb ports? A different pc as a last resort?

Make sure you have no other phone drivers installed (Samsung, etc.) and make sure all HTC drivers are uninstalled. Make sure you don't accept the option to automatically install HTC Sync when you connect the phone. After that, you should get the yellow exclamation point in Device Manager. Select the option to manually select the drivers, and pick the generic Android MTP device (or some similar description).

Related

Windows 7 - Installing ADB

Ok, I've just upgraded to windows 7. I was pretty psyched about the whole thing, and my computer seems like a whole new machine, coming from XP 32 bit.
So one thing I'm attempting to get adb to work with my phone. Heres my first problem - right off the bat, my computer doesnt recognize my phone as anything but an unknown device. YES I'VE TRIED DEBUGGING, DISK DRIVE, ETC., but nothing works.
I go to device manager, all I see is unknown device. Ok fine. I download the adb files that allow you to download the Android 2.1 thing and usb drivers. Still nothing works. I go to device manager, try to update the drivers for said "unkown device" and i get a message "the drivers are the newest up to date" or something. I try downloading the 64-bit HTC Hero drivers, same thing. I download and install HTC Sync, same thing.
I get this message when I plug the phone in...
"USB Device not recognized
One of the usb devices attached to this computer has malfunctioned, and Windows does not recognize it. For assistance in solving this problem, click this message"
So my question is, how do i get my computer to recognize my phone, even as storage device??
jasongthang said:
Ok, I've just upgraded to windows 7. I was pretty psyched about the whole thing, and my computer seems like a whole new machine, coming from XP 32 bit.
So one thing I'm attempting to get adb to work with my phone. Heres my first problem - right off the bat, my computer doesnt recognize my phone as anything but an unknown device. YES I'VE TRIED DEBUGGING, DISK DRIVE, ETC., but nothing works.
I go to device manager, all I see is unknown device. Ok fine. I download the adb files that allow you to download the Android 2.1 thing and usb drivers. Still nothing works. I go to device manager, try to update the drivers for said "unkown device" and i get a message "the drivers are the newest up to date" or something. I try downloading the 64-bit HTC Hero drivers, same thing. I download and install HTC Sync, same thing.
I get this message when I plug the phone in...
"USB Device not recognized
One of the usb devices attached to this computer has malfunctioned, and Windows does not recognize it. For assistance in solving this problem, click this message"
So my question is, how do i get my computer to recognize my phone, even as storage device??
Click to expand...
Click to collapse
try uninstalling htc sync and using a different usb port. does that work?
And to address how to get it to recognize as a drive, when you plug it in you should be presented with options where you can make it a disk drive. Or pull down your notification bar and change the type.
elegantai said:
And to address how to get it to recognize as a drive, when you plug it in you should be presented with options where you can make it a disk drive. Or pull down your notification bar and change the type.
Click to expand...
Click to collapse
On the phone yes, I can select a different type. On my computer, I just get that unknown device message.
And out of the blue I just tried a different USB port, and now it works as a storage device.
Did you restart the computer after installing the drivers? Sometimes mine gets a little goofy like that.
jasongthang said:
On the phone yes, I can select a different type. On my computer, I just get that unknown device message.
And out of the blue I just tried a different USB port, and now it works as a storage device.
Click to expand...
Click to collapse
i had that issue with one of my usb ports too. i think sometimes a bank of usb ports are used as basically a usb hub, and the evo doesn't like that, from what i understand.
Reboot comp, reboot EVO. Connect 'em, and then go into Device Manager, uninstall the "unknown device" (EVO), and then have it scan for new devices. Now, when it says scanning for drivers (or something to that effect) look for an advanced or "skip checking Windows Update for drivers" option. Then navigate to the ADB drivers in the Android SDK and tell it to use those. Make sure you have USB Debugging turned on, and EVO's set for "Charging Only".
If that still doesn't work, then there's an incompatibility with your computer's USB controller and Win7.
drmacinyasha said:
Reboot comp, reboot EVO. Connect 'em, and then go into Device Manager, uninstall the "unknown device" (EVO), and then have it scan for new devices. Now, when it says scanning for drivers (or something to that effect) look for an advanced or "skip checking Windows Update for drivers" option. Then navigate to the ADB drivers in the Android SDK and tell it to use those. Make sure you have USB Debugging turned on, and EVO's set for "Charging Only".
If that still doesn't work, then there's an incompatibility with your computer's USB controller and Win7.
Click to expand...
Click to collapse
lol, I did all that a few times, but im sure its not an incompatibility issue. probably just a skipped step somewhere.
jasongthang said:
lol, I did all that a few times, but im sure its not an incompatibility issue. probably just a skipped step somewhere.
Click to expand...
Click to collapse
If your computer is old enough, incompatibility is a possibility. See if there's other ports you can use, like on a different side of the case. Also, what brand computer?
--Swyped from my EVO using XDA App.
drmacinyasha said:
If your computer is old enough, incompatibility is a possibility. See if there's other ports you can use, like on a different side of the case. Also, what brand computer?
--Swyped from my EVO using XDA App.
Click to expand...
Click to collapse
stop! lol its fine. it works. i guess i should have stated that i've been on these forums for quite a while, and have flashed and rooted a few different phones using this computer, but with xp.
i just switched to windows 7, and of course lost all my drivers, and everything I had saved would have to be switched to 64-bit. I just couldnt get anything to work, but it seems to work now.
and I dont know what brand necessarily this computer is. i built it. I do have a dell keyboard though.

[Q] Still Can't connect to Win7 PC (driver issues?)

Hi there.
I picked up a refurbed Incredible 2 (running 2.3.4) and am trying to get it to connect to PC so I can move files across between the PC and either internal memory and/or microSD cards. I'm having no luck on Windows 7.
I changed the Default Connection Type from Charge Only to Media Sync / Disk Drive / HTC Sync (after installing the HTC Sync software - NOT the HTC Sync Manager, which apparently only supports the newer phones) to no avail. I've tried them all, and they all have the same issue. I've done this both with and without USB debugging checked, and with "Unknown Sources" ("allow installation of non-Market apps") checked. I've also tried uninstalling Sync, installing Sync Manager, trying again (no change), and then reversing it (uninstalling Manager, and reinstalling Sync) - again, no change. Sync does not see the phone while connected and in "HTC Sync" mode via the Default Connection Type (or anything else).
When I plug the phone in to the PC the PC shows a "USB Device not recognized" and sometimes I will get a "Driver did not install successfully" message. Device Manager is showing one Unknown Device with a "!" issue under the USB controllers category I'm assuming is the problem. There is also nothing showing up under the Disk Drives category in my Device Manager other than my hard disk, even though some of the guides I'm looking at say I should have something related to the phone in there.
I've tried connecting it with 2 different USB cables, just in case the one that came with it was not fully functional. I've used the second cable for data transfer in the past, so it should work. No difference.
I've restarted several times, with and without the microSD card installed. I've tried unmounting and remounting the card as well, no difference.
Am I missing some kind of Win7 drivers for the Incredible 2 that are not installed automatically and/or with the HTC Sync install? I've seen some references and links to HTC drivers that are apparently not on the HTC site, but I am very leery of downloading an .EXE from a random website and just installing it to see if it works. I'd think if this was necessary, it would be on the HTC site.
Anyone know what gives here? I can't think of anything else to try.
Am I a complete newb here, or is this potentially an issue with the refurb'ed phone?
Thank you very much for any assistance!
I use the driver linked on the revolutionary.io site (http://downloads.unrevoked.com/HTCDriver3.0.0.007.exe) and I have never had an issue.
Sent from my DInc2...
update
Hi there.
I attempted this, but still no change. Do you know where this installs the drivers to, so I might try to manually point the Device Manager "Unknown Device" to them?
When I try to update the driver via Device Manager, however, it is telling me the following:
"Windows encountered a problem installing the driver software for your device.
windows found driver software for your device but encountered an error while attempting to install it.
'Unknown Device'
Windows has stopped this device because it has reported problems (Code 43)"
Thank you for any further assistance or ideas.
Doesn't matter where you place them but you'll need to go to control panel/system/device manager find the device with the issue and select update driver.... Then it should be recognized
Sent from my HTC Droid Incredible 2 using xda app-developers app
OP - do you have any other USB device drivers for other smartphone(s) installed on your PC? If so, uninstall all of them and reboot it clean.
Assumed that you are running VZW stock software - phone isn't rooted ?
Is your HTC Installer running this version - 3.0.0.007 - that's mine (have it running on W7 Pro and Ultimate on desktop & 2 laptop, no problems for me - I also have it running Win 8.
Uninstall HTC Installer & reboot - without connecting the phone. Turn off firewall & antivirus on your PC temporary, reconnect the phone & follow the prompts to reinstall HTC drivers. Once it's done, disconnect the phone & power down the computer.
Restart the PC and then reconnect the DI2 to it, hopefully - it will recognize the phone and allow you to connect & recognize the mSD card for data transfer, etc.
Please post any specific error messages as you see them. Good luck.
A common cause of "unrecognized USB device" is a bad cable. Try another. Or, try a different USB port on your PC.

[Q] Can't update Drivers

Hey guys,
I've been wary to flash the ROM of my Nexus 7, as it actually boots into the normal OS and does everything fine.
The basic problem is that I can't transfer anything to and from the device over USB. USB debugging is on and I have tried PTP and MTP.
One of the solutions I have been looking at is bad drivers on Windows' part, and that is where I am currently blocked. If USB debugging is off, Windows refuses to acknowledge my tablet's existence. If debugging is on, some drivers from Microsoft automatically install and the tablet is labeled as "unknown device".
My USB controller is up to date with the correct drivers provided by ASUS for my motherboard (ASUS Z87-A). I recently re-installed Windows 7 to put it on a larger SSD, and with this same motherboard, it now does not detect correctly.
If I try to uninstall the "unkown device" it simply disappears until I unplug and replug in the tablet. If I try to manually direct it to the correct drivers, it tells me that the USB drivers are incompatible with my device. The USB drivers are the ones downloaded directly from Google.
I can still access the fastloader.
If you need more information, just let me know.
Allane176 said:
Hey guys,
I've been wary to flash the ROM of my Nexus 7, as it actually boots into the normal OS and does everything fine.
The basic problem is that I can't transfer anything to and from the device over USB. USB debugging is on and I have tried PTP and MTP.
One of the solutions I have been looking at is bad drivers on Windows' part, and that is where I am currently blocked. If USB debugging is off, Windows refuses to acknowledge my tablet's existence. If debugging is on, some drivers from Microsoft automatically install and the tablet is labeled as "unknown device".
My USB controller is up to date with the correct drivers provided by ASUS for my motherboard (ASUS Z87-A). I recently re-installed Windows 7 to put it on a larger SSD, and with this same motherboard, it now does not detect correctly.
If I try to uninstall the "unkown device" it simply disappears until I unplug and replug in the tablet. If I try to manually direct it to the correct drivers, it tells me that the USB drivers are incompatible with my device. The USB drivers are the ones downloaded directly from Google.
I can still access the fastloader.
If you need more information, just let me know.
Click to expand...
Click to collapse
When you first got the device, did you go straight into fastboot without booting it and plugging it in while in Android? Does that question even make sense?
Allane176 said:
Hey guys,
I've been wary to flash the ROM of my Nexus 7, as it actually boots into the normal OS and does everything fine.
The basic problem is that I can't transfer anything to and from the device over USB. USB debugging is on and I have tried PTP and MTP.
One of the solutions I have been looking at is bad drivers on Windows' part, and that is where I am currently blocked. If USB debugging is off, Windows refuses to acknowledge my tablet's existence. If debugging is on, some drivers from Microsoft automatically install and the tablet is labeled as "unknown device".
My USB controller is up to date with the correct drivers provided by ASUS for my motherboard (ASUS Z87-A). I recently re-installed Windows 7 to put it on a larger SSD, and with this same motherboard, it now does not detect correctly.
If I try to uninstall the "unkown device" it simply disappears until I unplug and replug in the tablet. If I try to manually direct it to the correct drivers, it tells me that the USB drivers are incompatible with my device. The USB drivers are the ones downloaded directly from Google.
I can still access the fastloader.
If you need more information, just let me know.
Click to expand...
Click to collapse
Use this as a possible quick-fix (not all mode combinations will work right): http://download.clockworkmod.com/test/UniversalAdbDriverSetup6.msi, then reboot.
Use this as a more complete fix (recommended in your case): http://forum.xda-developers.com/showthread.php?p=50253887#post50253887
Aerowinder said:
When you first got the device, did you go straight into fastboot without booting it and plugging it in while in Android? Does that question even make sense?
Click to expand...
Click to collapse
That would have been roughly a year ago. I believe I did boot straight into the OS.
mdamaged said:
Use this as a possible quick-fix (not all mode combinations will work right): http://download.clockworkmod.com/test/UniversalAdbDriverSetup6.msi, then reboot.
Use this as a more complete fix (recommended in your case): http://forum.xda-developers.com/showthread.php?p=50253887#post50253887
Click to expand...
Click to collapse
To the first quick-fix, the ADB drivers are installed, but they are not the drivers that are utilized when the Nexus 7 is plugged in. Like I said, it instantly installs some generic Microsoft drivers, and refuses to recognize the ABD drivers are compatible for the device.
As such I can't even begin with option 2.
Allane176 said:
That would have been roughly a year ago. I believe I did boot straight into the OS.
To the first quick-fix, the ADB drivers are installed, but they are not the drivers that are utilized when the Nexus 7 is plugged in. Like I said, it instantly installs some generic Microsoft drivers, and refuses to recognize the ABD drivers are compatible for the device.
As such I can't even begin with option 2.
Click to expand...
Click to collapse
With the device plugged in, go into device manager and find the device, uninstall that device, and make sure you check the box to uninstall the drivers from the system, then leaving the N7 plugged in to the PC, reboot the N7, as it comes up it should redetect, it's important to leave the device plugged in while it is rebooting.
mdamaged said:
With the device plugged in, go into device manager and find the device, uninstall that device, and make sure you check the box to uninstall the drivers from the system, then leaving the N7 plugged in to the PC, reboot the N7, as it comes up it should redetect, it's important to leave the device plugged in while it is rebooting.
Click to expand...
Click to collapse
There is no check box to uninstall the drivers: imgur.com/PhL4UNt
Where "unknown device" is my N7. Still, I tried rebooting it while leaving it plugged in, and it would not recognize correctly.
Allane176 said:
There is no check box to uninstall the drivers: imgur.com/PhL4UNt
Where "unknown device" is my N7. Still, I tried rebooting it while leaving it plugged in, and it would not recognize correctly.
Click to expand...
Click to collapse
You may want to make sure you are not using a hub or USB 3.0 port for this btw.
Put the device into in MTP mode with debugging on, unplug the device, then download these, unzip them somewhere, right click on the unknown device associated with your Nexux 7, click Update driver software, click "Browse my computer", navigate to where you saved the unzipped contents, and select usb_driver folder, let it do its thing, reboot your PC. Plug the device back in, preferably into a different USB port then what you have been using, it should then show up as a Google ADB driver (or similar), you can test it with the command: adb devices see if that works, if not, leave the device plugged in, and reboot the device.
Let me know if that works or not, and I will continue in a new post.
mdamaged said:
You may want to make sure you are not using a hub or USB 3.0 port for this btw.
Put the device into in MTP mode with debugging on, unplug the device, then download, unzip them somewhere, right click on the unknown device associated with your Nexux 7, click Update driver software, click "Browse my computer", navigate to where you saved the unzipped contents, and select usb_driver folder, let it do its thing, reboot your PC. Plug the device back in, preferably into a different USB port then what you have been using, it should then show up as a Google ADB driver (or similar), you can test it with the command: adb devices see if that works, if not, leave the device plugged in, and reboot the device.
Let me know if that works or not, and I will continue in a new post.
Click to expand...
Click to collapse
Ok, plugged directly into a USB 2.0 port at the back of my motherboard. Recognized as Unknown Device when plugged in, disappears completely when unplugged.
So, here's exactly what I did: Plugged in device -> clicked on "Update Driver software" -> unplugged device -> Browse my computer for driver software -> directed to correct location -> replies: "The best driver software for your device is already installed", and it is not using the ADB drivers.
Going into "Driver Details" tells me that there are no drivers that have been installed.
Allane176 said:
Ok, plugged directly into a USB 2.0 port at the back of my motherboard. Recognized as Unknown Device when plugged in, disappears completely when unplugged.
So, here's exactly what I did: Plugged in device -> clicked on "Update Driver software" -> unplugged device -> Browse my computer for driver software -> directed to correct location -> replies: "The best driver software for your device is already installed", and it is not using the ADB drivers.
Going into "Driver Details" tells me that there are no drivers that have been installed.
Click to expand...
Click to collapse
Don't unplug the device, do like this, put it in MTP/debug on, leave it plugged in, "Update Driver software" -> Browse my computer for driver software -> direct to correct location.
I know my method works, I've done it to that laptop, my htpc, and my gaming rig flawlessly.
You may have to use a tool to remove all instances of those drivers and reboot, Wugs toolkit has the app, let me see if I can find the direct download for the app or you can just download and install Wugs Toolkit.
Here is the app, but I'd still recommend you install Wugs NRT, as the kit has a walk-through telling you which device IDs to look for to remove. Here is the actual tool wugs uses: http://www.nirsoft.net/utils/usb_devices_view.html, but again, unless you know which ones to remove, you're better off using Wugs tool kit device drivers walkthrough built into NRT.
mdamaged said:
Don't unplug the device, do like this, put it in MTP/debug on, leave it plugged in, "Update Driver software" -> Browse my computer for driver software -> direct to correct location.
I know my method works, I've done it to that laptop, my htpc, and my gaming rig flawlessly.
You may have to use a tool to remove all instances of those drivers and reboot, Wugs toolkit has the app, let me see if I can find the direct download for the app or you can just download and install Wugs Toolkit.
Here is the app, but I'd still recommend you install ], as the kit has a walk-through telling you which device IDs to look for to remove. Here is the actual tool wugs uses: , but again, unless you know which ones to remove, you're better off using Wugs tool kit device drivers walkthrough built into NRT.
Click to expand...
Click to collapse
Well, NRT is precisely where I started this whole thing.
Here is a picture detailing where the Nexus 7 is connected, and for reference, ALL the USB ports on my case, be it at the front or from the motherboard, are controlled by a hub: imgur.com/pP5ZbMv
Every other device's location is described as "Location 0" except for the Nexus 7 when it's connected.
Unfortunately at this point I'm probably just going to use Dropbox to transfer files when I need to.
Allane176 said:
Well, NRT is precisely where I started this whole thing.
Here is a picture detailing where the Nexus 7 is connected, and for reference, ALL the USB ports on my case, be it at the front or from the motherboard, are controlled by a hub: imgur.com/pP5ZbMv
Every other device's location is described as "Location 0" except for the Nexus 7 when it's connected.
Unfortunately at this point I'm probably just going to use Dropbox to transfer files when I need to.
Click to expand...
Click to collapse
I guess something is trashed in your system, maybe using a previous motherboard driver would work, dunno, sorry it didn't work out.
mdamaged said:
I guess something is trashed in your system, maybe using a previous motherboard driver would work, dunno, sorry it didn't work out.
Click to expand...
Click to collapse
Well thank you very much anyway. I'm sorry I couldn't have been more clear initially.
Allane176 said:
Well thank you very much anyway. I'm sorry I couldn't have been more clear initially.
Click to expand...
Click to collapse
No problem, maybe you'll work on it again and you'll figure it out. Also, you can use airdroid for transfer of files, I hear it works really well.

[Q] Cannot Unlock Bootloader on Windows 8.1

Hello,
I cannot get the bootloader unlock working on my Win 8.1 laptop by any means. If I try through hasoon2000's toolkit, I get the error that the ADB server did not ACK (whatever that means). If I try using the command line and HTC's official method of getting the TokenID, I get a message that a certain ADB-related dll is not installed. I have installed the USB drivers that come with hasoon2000's toolkit about 4 times now. I installed the Android SDK and even Samsung USB drivers. I'm going to uninstall everything, can someone walk me through the step-by-step to get things working? I've read that USB 3.0 is the problem, but I only have USB 3.0 ports on my laptop.
killfire72 said:
Hello,
I cannot get the bootloader unlock working on my Win 8.1 laptop by any means. If I try through hasoon2000's toolkit, I get the error that the ADB server did not ACK (whatever that means). If I try using the command line and HTC's official method of getting the TokenID, I get a message that a certain ADB-related dll is not installed. I have installed the USB drivers that come with hasoon2000's toolkit about 4 times now. I installed the Android SDK and even Samsung USB drivers. I'm going to uninstall everything, can someone walk me through the step-by-step to get things working? I've read that USB 3.0 is the problem, but I only have USB 3.0 ports on my laptop.
Click to expand...
Click to collapse
Use another computer if you can.
I had similar problems until I used this version of adb
http://www.mediafire.com/download/e5mieo2vxjd71ws/android-tools.zip
Run everything from the downloaded folder.
First of all ensure you have USB DEBUGGING enabled in DEVELOPER OPTIONS in the phone settings.
Open the downloaded folder then right click inside the folder while holding shift then choose 'Open command Windows here'
Plug in the phone using the original HTC usb cable then in the command window type ADB DEVICES. The response should be a device comprised of letters and numbers.
If you don't see any device attached try swapping the cable to another usb port. If you see your device attached then follow the unlock instructions at HTCDEV as its the most reliable way.
If still no device then it could be a usb driver problem. You should here a ding when you plug your phone in.
Make sure the Unlock_code.bin is in the above folder when unlocking.
ashyx said:
Run everything from the downloaded folder.
First of all ensure you have USB DEBUGGING enabled in DEVELOPER OPTIONS in the phone settings.
Open the downloaded folder then right click inside the folder while holding shift then choose 'Open command Windows here'
Plug in the phone using the original HTC usb cable then in the command window type ADB DEVICES. The response should be a device comprised of letters and numbers.
If you don't see any device attached try swapping the cable to another usb port. If you see your device attached then follow the unlock instructions at HTCDEV as its the most reliable way.
If still no device then it could be a usb driver problem. You should here a ding when you plug your phone in.
Make sure the Unlock_code.bin is in the above folder when unlocking.
Click to expand...
Click to collapse
That version of ADB didn't work for me either. Anyway I was able to get fastboot to work but not ADB so I was able to unlock and root and everything through a strange method using only fastboot.
Second question, if I am switching between AOSP roms, say for example CM to PA, can I dirty flash or do I have to reset?
ADB does not work with USB 3.0 ports yet on Windows 8 or 8.1. You have to use it on a USB 2.0 port. I have had best results with Windows 7. Fastboot, however, works just fine on 8.1 and 8
xeron72548 said:
ADB does not work with USB 3.0 ports yet on Windows 8 or 8.1. You have to use it on a USB 2.0 port. I have had best results with Windows 7. Fastboot, however, works just fine on 8.1 and 8
Click to expand...
Click to collapse
Not so, I and others have ADB working fine on USB 3.0 ports.
The problem is Windows 8 driver signing enforcement blocking the install of drivers. You need to go to advanced startup options to disable it.
Download these drivers first and extract: http://www.mediafire.com/download/i3lcm7dwl581518/ADB_Fastboot_Drivers_Win81.zip
Follow these instructions to disable driver signing enforcement: http://www.isunshare.com/windows-8/...gnature-enforcement-in-windows-8-and-8.1.html
Once fully booted go into device manager and you should see a device called 'Android 1.0' with an exclamation mark.
Right click 'Android 1.0' then 'update driver software' then 'Browse my computer for driver software'
Click the 'Browse' button and then browse to the driver folder 'ADB_Fastboot_Drivers_Win81' extracted earlier then click next to install the driver.
You will get a warning about unsigned drivers, just ignore and continue.
The drivers should install and you should see a new entry in device manager called 'Android phone' which means the ADB driver is installed.
ADB should now be working.
Thank you so much for this. Have been wondering for a very long time
Sent from my HTC One_M8 using XDA Free mobile app
It sounds like you've got plenty of technical help already, but I will say that I use ADB perfectly fine on my desktop with Win 8.1 so it's possible. I also use hassoon's toolkit occasionally with no issue.
Before I could get the desktop to recognize the M8 I had to completely uninstall all drivers related to my previous galaxy nexus as well as remove any mention of the device in Window's USBdeview. After a reboot, I just plugged in the M8 and windows automatically installed the necessary M8 drivers. I can then run fastboot and adb from the toolkit.
I ended up uninstalling the MSFT USB 3.0 drivers and use the Intel USB 3.0 drivers instead on my Win8.1 laptop that has only USB 3.0 ports. Works great.

[Q] My 8.4 wifi can't connect to windows 7 pc

I have recently root my samsung tab pro 8.4 wifi version. Everything seems to work well, except USB connection to my windows7 desktop. I installed the latest version of Samsung usb driver (download from Samsung's web site for my device). Whenever I connect it, media device mode, the "installing device driver software" icon spins for couple of minutes, then I got the error of "Device driver software was not successfully installed" . In the detail dialog window, it says "MTP USB Device" failed with a red cross. what did I do wrong? thanks.
I have tried several different USB 2 ports on my computers. Also I have Developer mode turned on, with or w/o USB debugging checked. Nothing seems to work. Also the camera mode doesn't work either.
Did you install kies 3 from samsung?, this should install all the drivers you need.
http://www.samsung.com/us/kies/
I tried with this version of kies from samsung's website, not working. Got the same failed to install device driver message.
In windows device mananger, it shows a MTP USB device with yellow "!" mark on it. If I try to update driver from here with the driver installed on my computer, it says I have the latest driver installed already.
dealcrack said:
I tried with this version of kies from samsung's website, not working. Got the same failed to install device driver message.
In windows device mananger, it shows a MTP USB device with yellow "!" mark on it. If I try to update driver from here with the driver installed on my computer, it says I have the latest driver installed already.
Click to expand...
Click to collapse
Try going to Device Manager in Windows, find the device, pick the option to select from the drivers on the computer, then pick the "USB MTP drivers" (generic, not Samsung) and see if that helps.
redpoint73 said:
Try going to Device Manager in Windows, find the device, pick the option to select from the drivers on the computer, then pick the "USB MTP drivers" (generic, not Samsung) and see if that helps.
Click to expand...
Click to collapse
thanks for your help. I tried your suggestion, and
I went to the Device Manager, and select the "MTP USB Device" with yellow "!" mark, choose this menu,
Update driver software->Browse my computer for driver software->let me pick from a list of device drivers on my computer
I see two drivers, however either works for my 8.4 pad. It says "This device cannot start (code 10)"
Also when I open the properties for this device in device manager, it shows its driver running is from Microsoft, driver version 6.1.7600.16385. Should be a driver from Samsung?
dealcrack said:
thanks for your help. I tried your suggestion, and
I went to the Device Manager, and select the "MTP USB Device" with yellow "!" mark, choose this menu,
Update driver software->Browse my computer for driver software->let me pick from a list of device drivers on my computer
I see two drivers, however either works for my 8.4 pad. It says "This device cannot start (code 10)"
Also when I open the properties for this device in device manager, it shows its driver running is from Microsoft, driver version 6.1.7600.16385. Should be a driver from Samsung?
Click to expand...
Click to collapse
Are you running stock TouchWiz ROM? Just to be sure.
Otherwise you could remove all your USB drivers related to Android and start from scratch with just the Sammy driver. I had to do that for my previous OnePlus One, it just wouldn't connect. It chose a wrong driver each time I hooked it up so I had to just remove those from the driver store and then make it choose another one. That was for ADB thought, but I guess it couldn't hurt to try anyways.
The reason I'm mentioning if you're on stock ROM is because this morning, on CM nightly 01-24 I had some troubles with my tablet being read by Windows, it was fixed in 26 so.. Just wanted to mention it.
CuraeL said:
Are you running stock TouchWiz ROM? Just to be sure.
Otherwise you could remove all your USB drivers related to Android and start from scratch with just the Sammy driver. I had to do that for my previous OnePlus One, it just wouldn't connect. It chose a wrong driver each time I hooked it up so I had to just remove those from the driver store and then make it choose another one. That was for ADB thought, but I guess it couldn't hurt to try anyways.
The reason I'm mentioning if you're on stock ROM is because this morning, on CM nightly 01-24 I had some troubles with my tablet being read by Windows, it was fixed in 26 so.. Just wanted to mention it.
Click to expand...
Click to collapse
Yes, I am on the stock TouchWiz ROM, but I rooted it following steps from one thread in this forum. Before rooting, I was able to connect. I do have a LG G3 phone connecting to the same computer successfully. Will this cause any problem? Will going to CM ROM solve my problem?
Also, can you tell me steps to remove all my USB drivers related to Android in Windows 7?
dealcrack said:
Yes, I am on the stock TouchWiz ROM, but I rooted it following steps from one thread in this forum. Before rooting, I was able to connect. I do have a LG G3 phone connecting to the same computer successfully. Will this cause any problem? Will going to CM ROM solve my problem?
Also, can you tell me steps to remove all my USB drivers related to Android in Windows 7?
Click to expand...
Click to collapse
It may work to install CM11 or CM12, BUT try this toolfirst (uploaded to my personal box account) Find all your mobile device drivers in this list and mark them and go to "File" and click "Uninstall marked drivers", restart your PC and plug in your tablet. Then try plugging in LG after so it gets drivers later. I'm not sure if it will work. But it should apply new drivers. If it doesn't work, uninstall the drivers one more time and download the Samsung drivers from 3rd party and install them and apply then manually to your tablet through Device Manager in Windows.
https://app.box.com/s/7njztz17hekfkpxbjk7h79xsctnmuptn
Anyways, try this first.
dealcrack said:
I do have a LG G3 phone connecting to the same computer successfully. Will this cause any problem?
Click to expand...
Click to collapse
Its always a possibility. I'd try to uninstall the LG drivers. You can always re-install later (if needed).
In a perfect world, the Sammy drivers would be what you want. But this is of course not a perfect world. I've had better luck using the "generic" Microsoft MTP USB drivers over the HTC drivers on my HTC devices.
CuraeL said:
It may work to install CM11 or CM12, BUT try this toolfirst (uploaded to my personal box account) Find all your mobile device drivers in this list and mark them and go to "File" and click "Uninstall marked drivers", restart your PC and plug in your tablet. Then try plugging in LG after so it gets drivers later. I'm not sure if it will work. But it should apply new drivers. If it doesn't work, uninstall the drivers one more time and download the Samsung drivers from 3rd party and install them and apply then manually to your tablet through Device Manager in Windows.
https://app.box.com/s/7njztz17hekfkpxbjk7h79xsctnmuptn
Anyways, try this first.
Click to expand...
Click to collapse
I download this tool, and remove all Samsung or Android related USB driver. Restart my computer and connect the pad it's not working. Then I uninstall the Samsung driver software, and all USB driver. Then restart and install a samsung driver from the thread about how to root my pad in this forum. Connect my pad, no luck. Still the same problem. I am about to give up.
redpoint73 said:
Its always a possibility. I'd try to uninstall the LG drivers. You can always re-install later (if needed).
In a perfect world, the Sammy drivers would be what you want. But this is of course not a perfect world. I've had better luck using the "generic" Microsoft MTP USB drivers over the HTC drivers on my HTC devices.
Click to expand...
Click to collapse
I uninstall my LG driver too, along with all Samsung/Android usb driver with the tool from previous reply. No luck, It still shows a MTP device with yellow "!" mark.
Just before I about to give it up, it connects to my another computer now, which is my main computer and it had trouble connecting to. All I did was restart my pad several time and odin twrp recovery to it. It connects after rebooting. No idea what cause this problem, but it works now. thank you for all your help.
dealcrack said:
Just before I about to give it up, it connects to my another computer now, which is my main computer and it had trouble connecting to. All I did was restart my pad several time and odin twrp recovery to it. It connects after rebooting. No idea what cause this problem, but it works now. thank you for all your help.
Click to expand...
Click to collapse
Glad you sorted it out, to some degree or other.
USB connectivity on Android devices is very tricky, at least on Windows (can't speak on other OSes). My HTC phone connects fine to my work laptop with the HTC drivers. On my home computer (also Win7) it frequently drops adb connection and I have to manually select the "generic" Microsoft drivers to make it work (and the HTC drivers never seemed to work completely right either). My Sammy Pro 8.4 seems to connect just fine to my home PC, however. So it seems its just a crap shoot what kind of connectivity you will get, really.

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