USB Mass Storage Mode - T-Mobile Samsung Galaxy Note 3

Hey does anyone know if the note 3 can get into mass storage mode and if so how would you go about doing it...thanks for any help....

re: usb connect modes
rockinandroid said:
Hey does anyone know if the note 3 can get into mass storage mode and if so how would you go about doing it...thanks for any help....
Click to expand...
Click to collapse
To change modes plug the usb cable from phone to computer and pull the pulldown down
and you will see "connected as a media device" click on it and will be able to change it to
"Camera PTP" or "Media Device MTP". (Media device PTP is mass storage mode)
Be sure that you have the latest samsung usb drivers installed in your computer.
If you don't have it installed or if you don't see the options then that means that
either the usb drivers are not installed or the usb cable or the usb port is not
functioning properly.
Good luck!

Misterjunky said:
To change modes plug the usb cable from phone to computer and pull the pulldown down
and you will see "connected as a media device" click on it and will be able to change it to
"Camera PTP" or "Media Device MTP". (Media device PTP is mass storage mode)
Be sure that you have the latest samsung usb drivers installed in your computer.
If you don't have it installed or if you don't see the options then that means that
either the usb drivers are not installed or the usb cable or the usb port is not
functioning properly.
Good luck!
Click to expand...
Click to collapse
Doing that makes it show up as a camera. Which is fine I guess, but probably just for applications on the computer that don't know how to read MTP. Neither is actually USB Mass Storage though.
Either will let you copy files to/from the device in Windows. OSX seems to need MTP and the little application Google makes available.
When people ask about UMS, they usually want to connect to something that's not a computer, like a car radio that can play music/video from a flash stick. Those devices won't support MTP/PTP. I am not aware of any way to get normal UMS to work on a Note3. Last I heard, people determined that a kernel mod needed to happen, and even if that does, the device might get angry if you take its storage away as it won't expect that. The external could probably be done without too much hassle, but the internal would be weird. And probably won't work anyway as it's an ext4 format, so only Linux devices could mount it anyway.

Related

htc keeps asking for MTP driver?

Dezire z keeps askinf for MTP drivee?? i recently flashed mexdroid rom, and in the beginning none of the usbs would connect my phone. I thought it was a nightly issue as it was based off of a nightly but now its using RC1.
Recently i played around, it wouldnt connect with the "ADB or Android phone driver." I fixed that and those work fine in Device Manager in Windows 7. However!, in device manager it KEEPS asking for MTP. i tried uninstalling, updating, everything!! and it just wont find my htc desire z.
ADB can find it when using command prompt. It can even logcat, and its weird why ADB can see it but windows cant. I have posted a Download link to the Logcat file. Im hoping anyone here can help me.
http://dl.dropbox.com/u/21509455/logcat.txt
thanks
edit* i think i read somewhere Android doesnt use MTP drivers....-confused-
windows 7 can see my phone and lets me safely remove it too, but wont let me see it in my computer.
issues I was having with W7 x64 were resolved by PDANet. you might try it out, although your issue is slightly different than mine... the device was entirely unrecognizable (by adb, fastboot, the whole shebang).
edit: NOTE you don't need to actually use PDAnet, it will just locate an appropriate driver and install it for you, then you can uninstall it from your PC.. unless you want to use it, of course. pretty slick.
pmcqueen said:
issues I was having with W7 x64 were resolved by PDANet. you might try it out, although your issue is slightly different than mine... the device was entirely unrecognizable (by adb, fastboot, the whole shebang).
edit: NOTE you don't need to actually use PDAnet, it will just locate an appropriate driver and install it for you, then you can uninstall it from your PC.. unless you want to use it, of course. pretty slick.
Click to expand...
Click to collapse
ive done this and it found the proper driver. "Android phone" BUT when it tries to connect with device, it says "failed to handshake with device" and proceeds to uninstall pdanet. Is it because its conflicting with windows 7 cant find the MTP driver?.... sooo confused.. never, ever had this problem
edit* after pdanet is uninstalled, the Android phone driver works fine, but MTP does not.
jark99 said:
ive done this and it found the proper driver. "Android phone" BUT when it tries to connect with device, it says "failed to handshake with device" and proceeds to uninstall pdanet. Is it because its conflicting with windows 7 cant find the MTP driver?.... sooo confused.. never, ever had this problem
edit* after pdanet is uninstalled, the Android phone driver works fine, but MTP does not.
Click to expand...
Click to collapse
that's a bugger.
when you plug the phone in, in device manager, does it show as a USB mass storage device under the USB controller section? to check: unplug all usb devices (aside from input devices like keyboard/mouse/what-have-you). plug in your phone and go to device manager (right click my computer->manage->device manager). under USB controllers, check and see if there is a USB mass storage device. assuming you have disconnected any other storage media, this is your phone.
if it does:
uninstall this driver, unplug your phone, restart, plug your phone back in.
if it doesn't:
my next step (take it for what it's worth - I'm sure there's an easier way) would be to unplug all usb devices (including keyboard/mouse - anything USB related), uninstall EVERYTHING under the USB Controller submenu, then restart and plug the phone in.
W7 should automatically recognize and reinstall the USB host controllers and hubs.
edit: are you using any other USB storage devices? thumb drives, ext harddrives, etc? do they work?
pmcqueen said:
that's a bugger.
when you plug the phone in, in device manager, does it show as a USB mass storage device under the USB controller section? to check: unplug all usb devices (aside from input devices like keyboard/mouse/what-have-you). plug in your phone and go to device manager (right click my computer->manage->device manager). under USB controllers, check and see if there is a USB mass storage device. assuming you have disconnected any other storage media, this is your phone.
if it does:
uninstall this driver, unplug your phone, restart, plug your phone back in.
if it doesn't:
my next step (take it for what it's worth - I'm sure there's an easier way) would be to unplug all usb devices (including keyboard/mouse - anything USB related), uninstall EVERYTHING under the USB Controller submenu, then restart and plug the phone in.
W7 should automatically recognize and reinstall the USB host controllers and hubs.
edit: are you using any other USB storage devices? thumb drives, ext harddrives, etc? do they work?
Click to expand...
Click to collapse
Under the usb section in device manager, i have about 8 or so usb controllers and stuff. Im using a Gateway Laptop and only one thing is using a usb port--- the mouse. Thats all. So i dont really have a clue which one is my htc phone because when plugging it in and going into device manager the only devices i remember using the phone were adb, android phone, and Now MTP. If i could pinpoint which usb controller is using my phone ill uninstall it. Other than that, what else is there? This is the strangest problem ever
Sent from my HTC Vision using XDA App
sighh, comeon guys. here ill post some pics of what is going on
Here are the pics of what is going on!!
Normal mode (no phone plugged in) - http://dl.dropbox.com/u/21509455/normal%20mode.jpg
Phone plugged in mode - http://dl.dropbox.com/u/21509455/phone%20plugged%20in.png
Uninstalled MTP & ADB driver Picture (looking for drivers) -http://dl.dropbox.com/u/21509455/phone%20uninstall%20drivers.jpg
Phone with ADB driver but no MTP - http://dl.dropbox.com/u/21509455/phone%20with%20driver%20found%20but%20no%20mtp%20.jpg
hope this helps , if you find something that can make this work let me know ASAP
140 views? and no one knows how to fix this problem?? anyone? hello?
jark99 said:
140 views? and no one knows how to fix this problem?? anyone? hello?
Click to expand...
Click to collapse
Have you tried the drivers from the official HTC Sync software? Also, are you actually trying to use the phone as an MTP device or as a USB mass storage device? I don't think you can use both at the same time (though I don't use this ROM so maybe things have changed). If you don't actually want the MTP functionality, I wouldn't worry about it.
Also, I noticed the notes for the ROM says "USB mounting is not working on a Windows OS computer" is a known issue. Not sure if that could be related...
ianmcquinn said:
Have you tried the drivers from the official HTC Sync software? Also, are you actually trying to use the phone as an MTP device or as a USB mass storage device? I don't think you can use both at the same time (though I don't use this ROM so maybe things have changed). If you don't actually want the MTP functionality, I wouldn't worry about it.
Also, I noticed the notes for the ROM says "USB mounting is not working on a Windows OS computer" is a known issue. Not sure if that could be related...
Click to expand...
Click to collapse
im trying to use it as a mass storage device, MTP isnt supposed to show up from what i read. but now it wont start without MTP
did you try what I pm'd you earlier today?
pmcqueen said:
did you try what I pm'd you earlier today?
Click to expand...
Click to collapse
windows 7 home doesnt have that script gpedit.msc
i looked all over google and it doesnt work . only pro and business versions have it.
Did the HTC Sync software not work? Also, have you tried formatting your SD card? Might be a long shot, but if it was ever used in MTP mode at one point, maybe your comp is detecting the files and thinking it's still an MTP device. Not sure if it works that way though...
Did you ever set the phone to MTP mode in the past? Like if you were ever on a Sense-based ROM. Maybe if you had it in MTP mode prior to flashing the new ROM, it stayed in it. Once again, no clue if it works that way since I've never used MTP on this phone before, but might be worth trying if you are out of options.
STILL havent fixed this MTP driver issue, have tried everything including the post above me!....NOTHING IS WORKING. why is it being recognised as mtp, when all i need is use the sd card.
this has been up for a week, seriously no one knows how to fix it?
jark99 said:
this has been up for a week, seriously no one knows how to fix it?
Click to expand...
Click to collapse
I'm guessing it's because no one else has encountered this problem before...
So what happened when you flashed back to a Sense-based ROM? I've never used one, but I thought when you connect the phone via USB, you have to choose what kind of connection you want (e.g., HTC Sync connection vs Disk Drive). Are you saying even when you choose to connect as a drive, the phone still shows up only as an MTP device (which I'm assuming is what is used when in HTC Sync mode)?
ianmcquinn said:
I'm guessing it's because no one else has encountered this problem before...
So what happened when you flashed back to a Sense-based ROM? I've never used one, but I thought when you connect the phone via USB, you have to choose what kind of connection you want (e.g., HTC Sync connection vs Disk Drive). Are you saying even when you choose to connect as a drive, the phone still shows up only as an MTP device (which I'm assuming is what is used when in HTC Sync mode)?
Click to expand...
Click to collapse
i switched to MIUI rom where i can mount sd card, and it still shows up as MTP in device manager on windows. Its not a rom issue, its a issue with WINDOWS seeing my device as a MTP and not STorage ....stupid windows 7.
jark99 said:
i switched to MIUI rom where i can mount sd card, and it still shows up as MTP in device manager on windows. Its not a rom issue, its a issue with WINDOWS seeing my device as a MTP and not STorage ....stupid windows 7.
Click to expand...
Click to collapse
Well either Windows sees your phone as an MTP device or the phone is actually reporting itself as an MTP device (not sure how it works on phones, but typically Windows communicates with firmware on a USB device to determine its classifications).
I'm guessing you already tried this since it's one of the only threads on the G2 forum when I did a search for MTP...
http://forum.xda-developers.com/showthread.php?t=901449
ianmcquinn said:
Well either Windows sees your phone as an MTP device or the phone is actually reporting itself as an MTP device (not sure how it works on phones, but typically Windows communicates with firmware on a USB device to determine its classifications).
I'm guessing you already tried this since it's one of the only threads on the G2 forum when I did a search for MTP...
http://forum.xda-developers.com/showthread.php?t=901449
Click to expand...
Click to collapse
Thankss i saw some of those. One method i didnt try, but ill try it and let you know how this goes. Thanks for the link
Sent from my HTC Vision using XDA App
Bumppp. Still no proper way to fix this!!
Sent from my HTC Vision using XDA App
anyone find any fix for this MTP ISSUE?

[MOD]{CM9} Enable USB Mass Storage

I know there are many of us that use programs like Airdroid to get files into our phones but transferring large files can be time consuming if. Im not sure if i am the only one but CM9 nighties for the nitro has no USB MASS storage. I was able to mix a couple of things to get it working on the Nitro.
First Head to this thread to download the flash-able zip file or you can follow the given instructions. It is a script that can be flashed with Recovery on our phones that will enable usb mass storage.
http://forum.xda-developers.com/showpost.php?p=23880938&postcount=35
once you have that flashed, I cleared my cache and dalvik cache to be safe and flashed it again (you may not need to). When that is ready and your phones has booted, plug the phone to your computer via USB. All of the drivers should install except 1 which should be called MTP USB Device. It will try to install but at the end it will fail.
At this point, go to device manager and look for the MTP USB Device
Note: it should have a yellow triangle next to the icon.
You will then Right click and choose select update driver. Select 'browse my computer for drivers' and then choose "Let me pick drivers to install". You will get two options select the USB Mass storage and click OK.
Note: The new driver will be called Linux file CD Gadget
Unplug your phone from the computer and then back it. When the USB mass storage pops up in your phone, click connect and the media card should appear in the pc like a regular usb card.
Thanks to VAXXi for creating the sript and desean for compiling it into a flashable zip (both at the Samsung Galaxy S II forums in XDA) and thanks to sameer.verma at the androidcommunity forums for the explanation on how to update the MTP driver.
Disclaimer: I have only tried this on Windows 7 (Home Premium) 64-bit computer and on a USB 2.0 Port (will not work on USB 3.0). I am also not responsible for any damages to your phone. DO A NANDROID BACKUP TO BE SAFE! I also do not guaranteeing that it will work for you.
*Sigh* You wasted a lot of work. All you have to do is install the LG drivers on your computer and go into USB settings on your phone and change the mode from MTP to USB mass storage.
Malnilion said:
*Sigh* You wasted a lot of work. All you have to do is install the LG drivers on your computer and go into USB settings on your phone and change the mode from MTP to USB mass storage.
Click to expand...
Click to collapse
I've never been able to get USB mass storage to work in CM9 myself. I have LG drivers installed, and even though I have it set to USB mass storage, it still keeps looking for a MTP driver.
Got a link for the lg USB drivers?
Sent from my LG-P930 using xda premium
Ohhh, I forgot, you have to go into device manager and manually update the device driver to use the USB mass storage driver. Once you do it once, though, your device will always be recognized by your PC as a mass storage.
Malnilion said:
*Sigh* You wasted a lot of work. All you have to do is install the LG drivers on your computer and go into USB settings on your phone and change the mode from MTP to USB mass storage.
Click to expand...
Click to collapse
I never knew that this was possible from the beginning. But hey now its out here for others to see.' it didn't take me long. Only like 10 minutes max. I only use this to transfer large files (movies or a large amount of music), everything else I do on airdroid
it took me a long time to figure out where the **** the damn usb settings are,
it's
system settings>>storage>>click the search button bottom left to open usb computer connection settings window, click enable mass storage.
damn thing is buried deep!
Yeah it is. It took me a while to figure it out too. My default from the beginning was actually mass storage mode. I had to find it to figure out what people were talking about in regards to MTP. While we're on the subject, MTP also works with the LG drivers, but I find that switching between the two can be a pain in the ass and sometimes requires removing devices from device manager to make device manager select the correct driver.
.....
At this point, go to device manager and look for the MTP USB Device
I could not find MTP USB Device! there is none!!
I am on Win7 ultimate 32 bits + LG drivers installed + [ROM] HO!NO! CM9 "Full Throttle"
bigmama said:
.....
At this point, go to device manager and look for the MTP USB Device
I could not find MTP USB Device! there is none!!
I am on Win7 ultimate 32 bits + LG drivers installed + [ROM] HO!NO! CM9 "Full Throttle"
Click to expand...
Click to collapse
Go to Settings > Storage > press Menu button > USB computer connection > select Mass Storage.
Then connect USB cable and wait until Windows fails to find the driver for MTP USB Device. Then it will show up in Device Manager under the "Portable devices" category.
Thanx it worked now
The damn hidden Menu button
I had to use the method in the original post to get it to work. I tried the other methods mentioned here, but the only one that worked was that of the original post. Thanks!
Resurrecting a fairly old thread, but I have tried, without success, to enable USB Mass Storage on CM10. Is it even available in CM10 yet? The menu/search hardware key does nothing but click when tapping while in Settings>Storage. No luck in Device Manager/Updating Driver either. Drivers are installed on my machine. Anybody else attempted this yet?
EDIT: Disregard, solved, credit to this post---> http://forum.xda-developers.com/showpost.php?p=29425905&postcount=212
Nice.
scott0 said:
it took me a long time to figure out where the **** the damn usb settings are,
it's
system settings>>storage>>click the search button bottom left to open usb computer connection settings window, click enable mass storage.
damn thing is buried deep!
Click to expand...
Click to collapse
Good work!!!
will this method work on cm9 final 4 by altius cooper for galaxy ace

computer usb problem

hey guys
when i connect my note 2 to the com via usb cable the com does not recognize my device and failes to install it.
i tried to install kies but no success with that to.
what can i do? plz help me
It sounds like your usb port is broken to me...
Have you tried some other port? Have you tried connecting some other "mass storage" device? Not mouse or keybord. Mass storage
yes man sure i tried! the usb port is fine and work with everything.
my computer indicates that i connected the device but cannot install it and thats why i cannot transfer files etc
With ICS and upper, Google remove UMS and use MTP instead for connection to PC On Windows Seven, it's works quite well, on XP, you must install Media Player 11 or MTP installation failed. I don't know how it's works under Linux.

USB 3.0?

Anybody tried linking this phone through a USB 3.0 port yet? Just had to upgrade my computer due to a liquid spill and the new mac seems to have only come with 3.0 ports instead of both.
Should be backwards compatible.
meekrawb said:
Should be backwards compatible.
Click to expand...
Click to collapse
I would have thought so, but it wont connect in any mode (USB mass storage, MTP, recovery mount, or download mode). Hoping somebody has had this problem too and there's a way around it.
kies air or airdroid
phil.culler said:
I would have thought so, but it wont connect in any mode (USB mass storage, MTP, recovery mount, or download mode). Hoping somebody has had this problem too and there's a way around it.
Click to expand...
Click to collapse
Try booting with an ubuntu live dvd and see if your phone is recognized. If so, that removes one variable. You can also connect through a wireless router with kies air or airdroid.

[Q] Help! - New to Android, cannot transfer files via USB connections

Hi all...I am new to XDA forum, but have been browsing in the trove of information to help with my problem. At the end I am resorting to posting a new thread to hopefully help me in resolving this problem or provide a good explanation why it does not work.
Problem: I am trying to use the USB cable to transfer files to my SD Card. (I am not sure what reason, but someone has informed me that either Samsung's proprietary software Kies does NOT work, you can only transfer using Samsung KIES Air...which is painfully slow.)
Now here is my situation:
1. I have a Bell Canada - Samsung Galaxy Note-2
2. The Phone has been unlocked and rooted (using Odin)
GOAL:
- I don't care if I need to transfer files to the SD card, and then sort the files out afterwards on the phone.
- Primary goal is to allow me to transfer files (music, mp3, etc.) via USB cable.
Your help is greatly appreciated...in providing some sort of clear cut instructions or directions.
Thank you in advance.
Android Noob User - Daniel :crying:
I know you didn't ask for this, but could you possibly use Airdroid? It has always been reliable for me and honestly it's my best solution for myself because we don't actually have UMS anymore, sigh.
Airdroid Vs. Kies Air
Thanks for the response and recommendation.
So is Airdroid? better or the same as Kies Air?
dckp said:
Thanks for the response and recommendation.
So is Airdroid? better or the same as Kies Air?
Click to expand...
Click to collapse
I've never used Kies so I can't say!
But basically, you download the app from google play and go to web.airdroid.com and you type in the code that you see in the app. From there you can read your phone's text messages and transfer files and do other things via your wifi connection. File transfer on my (good) wifi network is fairly fast (about the same as using a usb cord) and it's good for me because I personally use Ubuntu and Chrome OS, so the USB storage options don't work or don't work well.
usb driver
All you need is go to samsung website and install the usb driver. You should have an option to do this during the kies installation too.
dckp said:
Hi all...I am new to XDA forum, but have been browsing in the trove of information to help with my problem. At the end I am resorting to posting a new thread to hopefully help me in resolving this problem or provide a good explanation why it does not work.
Problem: I am trying to use the USB cable to transfer files to my SD Card. (I am not sure what reason, but someone has informed me that either Samsung's proprietary software Kies does NOT work, you can only transfer using Samsung KIES Air...which is painfully slow.)
Now here is my situation:
1. I have a Bell Canada - Samsung Galaxy Note-2
2. The Phone has been unlocked and rooted (using Odin)
GOAL:
- I don't care if I need to transfer files to the SD card, and then sort the files out afterwards on the phone.
- Primary goal is to allow me to transfer files (music, mp3, etc.) via USB cable.
Your help is greatly appreciated...in providing some sort of clear cut instructions or directions.
Thank you in advance.
Android Noob User - Daniel :crying:
Click to expand...
Click to collapse
Just in case, make sure that MTP is checked in USB computer connection.
*Settings>Storage> Menu button>USB computer connection> check Media device (MTP)*
I know it may seem obvious to some but it does get overlooked sometimes.
Cheers!
ace862 said:
Just in case, make sure that MTP is checked in USB computer connection.
*Settings>Storage> Menu button>USB computer connection> check Media device (MTP)*
I know it may seem obvious to some but it does get overlooked sometimes.
Cheers!
Click to expand...
Click to collapse
In regards to the downloading the 'Samsung Driver' I have already attempted that, and with no luck of cooperating. Under 'device Manager' in Window 7. The listed device when I plug-in the phone is "Qualcomm CDMA Technologies MSM" with an exclamation mark. I have been trying to try the driver files so I can 'direct' the appropriate drivers file. But no luck locating it. The Samsung Kies installation mention that it has installed, but no luck.
MTP Option:
In regards to the MTP, I do not have that option available on my phone, the only thing avaliable is through the 'Developer option -> Checking/Unchecking USB debugging'
Please Help! :crying:
I have download the driver form the Samsung.com website.
Now, It doesn't technically allow to choose my specific phone model, with my carrier (BELL), so I went with the closest ATT.
I have located the folder with the USB driver, and force window to look through it.
But still windows says it cannot find the correct driver for my device....this is getting frustrating.
HELP...help...help...
dckp said:
MTP Option:
In regards to the MTP, I do not have that option available on my phone, the only thing avaliable is through the 'Developer option -> Checking/Unchecking USB debugging'
Please Help! :crying:
Click to expand...
Click to collapse
That is odd. Do you have a Storage category under System Settings? It should show you available space on internal and sd storage. What happens when you hit the menu button? (button to the left of the home button)
When you connect your USB cable, do you get a notification that says "Connected as a media device"?
Heres what you do.
Make sure you have current samsung usb drivers. Redownload just for fks sake.
Yeah idk wtf ms prob is but its got issues with samsung phones.
So ok drivers gtg?
Plug in phone
Wait for annoying pop up.
Leave phone pluged in and on restart computer.
You should get the all clear but first it may give you the cant recognize drivers thing give it a min should work.
Other solution
Download this
http://www.google.com/url?q=http://...gQFjAA&usg=AFQjCNEJj15zF95WRtG86GXUDNcyErSAGA
Basically just keep going back and forth witj mtp and mount you should kick it in.
And you may need to restart computer.
Sgs3 easy wotks pretty good for me.
You gotta make sure you have the microsoft mtp update installed.
Pia I know.
ace862 said:
That is odd. Do you have a Storage category under System Settings? It should show you available space on internal and sd storage. What happens when you hit the menu button? (button to the left of the home button)
When you connect your USB cable, do you get a notification that says "Connected as a media device"?
Click to expand...
Click to collapse
In regards to your question. Yes It is odd....'Yes" I do have a storage category under System settings. I do see available space on internal and sd storage. BUT Nothing happens when I hit the menu button. Absolutely nothing
dckp said:
In regards to your question. Yes It is odd....'Yes" I do have a storage category under System settings. I do see available space on internal and sd storage. BUT Nothing happens when I hit the menu button. Absolutely nothing
Click to expand...
Click to collapse
I'm sorry. That is my bad. It looks like those options are not available on the stock rom. I thought they were. The option is there on CM.
It looks like it is probably a driver issue. If your computer is not recognizing your device when it is plugged in, it could also be a bad USB cable. If you can try a different cable, see if something different happens when you plug in your phone.
Worst comes to worst, you may just have get a card reader and connect your sd card to your computer that way.
1. Is cable good? It may be sending incomplete signal. The fault could be your device's usb port or cable or pc usb port.
1a. test device with another known working usb cable
1b. test cable with another known working device
2. Is PC port good?
2a. Plug a different, known working USB device into port, do other devices work?
2b. Plug device into another usb port on PC, not into usb hub or front usb ports.
2c. Does it successfully connect for transfer with another PC?
3. Is driver good?
(This is most likely your problem, but a bad usb device, cable, or port can make it more difficult to troubleshoot. )
3a. Re-download driver. BUT BEFORE YOU DO...
use a different browser to download or delete your browser's cache. (Attempting to redownload may just be grabbing the already known poor copy.)
3b. Run Windows Update after driver is installed.
If still having problems.
Search for, download, and run the portable program usbdeview. Attached USB devices will be highlighted. See if it shows up to the system and what it is being recognized as.
It sounds like either a bad driver install or conflicting program/setting.
Turn off antivirus temporarily to rule that out.
For assistance with installing Qualcomm USB drivers, see this post:
http://forum.xda-developers.com/showthread.php?t=1669498

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