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[Q] USB Device not recognized / Unknown Device

I'm having an issue where my thunderbolt is not recognized by my PC any longer. I used to have it set up with pdanet and everything worked well for about a week. All of a sudden, any computer i tried to plug the device into, wouldn't detect the phone. A friend of mine has tried his thunderbolt on my computer and it detects it.
When plugging my phone in, it pops up an error message with "USB Device not Recognized." In the device manager, the phone shows up as Unknown Device. I have tried this on 3 different pc's, using 3 different data cables. No USB symbol displays on the taskbar of the phone when I plug it in, however, it does charge.
What I have tried:
Changing data cables.
Using another PC.
Uninstalling device drivers and letting windows re-detect and install.
Downloaded HTC Sync and ran it after uninstalling drivers again and re-plugging the phone.
Changed different Connection settings on the phone, such as USB Debuggin on/off, and changing it to HTC Sync Mode, Charge Only, Disk Drive, etc
Mounted and unmounted SD Card in the phone settings.
OS: Windows 7 x64
Is there anyone out there that can help?
Thank you for any information you may provide.

I remember that one of my friend's desire cannot be detected by the pc before, he search the forum and find out that he need to change something in the driver files before installing the driver. I'm not sure if that will work in your case thought..

[Q] Can't make USB connection with PC

I recently bought a new PC running Windows 7 and after installing HTC Sync and all the drivers, my phone will not connect. As soon as I plug in the phone to the USB, it freaks out and keeps popping up and closing the USB Mass Storage screen. I've tried to connect with USB debugging checked and unchecked and still no luck. I even went and uninstalled HTC Sync and all the drivers and reinstalled but still won't connect. I even tried different USB ports but still the same thing. I'm running CM10.1. Anyone have any help they can give me?

[Q] Nexus 5 not connecting to computer (usb), does not show in device manager

Hi,
I would like to see if I can get anyones assistance with solving my problem. I have lost the ability to connect my Nexus 5 to my computer via USB. I had previously been able to connect the phone without any problems.
Connecting my phone to PC charges the phone but no drivers are loaded, nothing changes in device manager and I cannot see a change in windows explorer to view the memory card.
So far I have tried the following:
searches on various sites
rebooting phone, starting in safe mode, wiping all data, performing a hard reset
connecting other phones to usb cable to check that it is not a charge only cable, also trying several other USB cables
connecting phone to other computers
connecting other phones (HTC) to load drivers (then uninstalling drivers)
displaying all hidden devices in device manager and removing all drivers that resemble something to do with mobile phones
uninstalling programs I no longer require on the PC
using "wugs nexus root toolkit" to uninstall and re-install drivers
checking & unchecking MTP, PTP, developer options, USB debugging in various combinations to elicit a response from the computer.
I have also tried to visually check the connections of the USB port on the phone wondering is there is a break but I cannot see very well.
does anyone have any further suggestions to get this phone connected to a PC?
my only last thought is to attempt to open the phone and check the resistance of the plug connections.

Have you tried enabling and disabling usb debugging while plugged in?
Sent from my Nexus 5 using Tapatalk

I just did it, no change in Device manager or explorer

tropicalchills said:
I just did it, no change in Device manager or explorer
Click to expand...
Click to collapse
Are you sure you're using a data usb cable and the usb port is good?

Same Issue
same thing happened to me today when i connected the device to PC.
Mine says unknown device on PC under other devices. so i hope my USB port is ok.but im not using the original SUB cable. i wonder that's is the issue. but it didn't bother me until today. my original cable is at my friend's house.
Tried updating drivers manually. But following error message occurs once i select the drivers folder and hit ok.
Windows was unable to install your unknown device
Please help.

so, not really a solution but while at work my phone fell on to a nice rock cracking the screen. I have replaced the phone and the new phone connects to the pc fine, drivers come up without a problem (I will put this down to a fault with the phone)
Thank you for your assistance

No usb connection between HTC 11U and windows

when i connect my HTC U11 to my PC windows 10, no USB activity initiates, i can't use ATP, MTP or mass storage to transfer data between my phone and the PC, only my phone gets charged, and no any pop up message shown on my pc or my phone, and there is no USB status or option on my phone shows there is an active USB connection, also on my PC the device manager doesn't show there is a connected phone at all.
please let avoid ordinary precautions, as i am using new original USB data cable with high speed, i have reinstalled HTC sync manager, and restarted both PC and HTC, all drivers are updated.
i tried to connect another HTC 10 and Samsung note 4, and both are working on the same cable and same windows with a same USB port.
i doubt there is something with advanced options, as i tried 1 month ago to make USB tethering and tried to create entire iso image of the internal memory.
i tried the 3 phones on another computer and gives me the same results, all phone worked and recognized except for HTC U11.
is the USB port in my HTC U11 is broken?
please help

Can't get usb debugging working

Phone is rooted and on android 10 and xxxnolimits installed
I connected phone to pc and only charging. Tried 3 different cables, including official one and 3 different USB ports and not showing on pc. I can hear noise it's connected to pc but then another noise to disconnect
Usb debugging is enabled and default usb configuration I can change to file transfer, usb tethering , midi, ptp & no data transfer. I changed it to each of them still not showing
There is no option to choose mtb from drop down notification no notification is there
I rebooted phone and pc and cleared cache. Also i app settings allowed notifications.
I'm at the end of my tether trying to figure out what issue is as was working previously.
Now all its doing is charging
Any suggestions

funkyirishman said:
Phone is rooted and on android 10 and xxxnolimits installed
I connected phone to pc and only charging. Tried 3 different cables, including official one and 3 different USB ports and not showing on pc. I can hear noise it's connected to pc but then another noise to disconnect
Usb debugging is enabled and default usb configuration I can change to file transfer, usb tethering , midi, ptp & no data transfer. I changed it to each of them still not showing
There is no option to choose mtb from drop down notification no notification is there
I rebooted phone and pc and cleared cache. Also i app settings allowed notifications.
I'm at the end of my tether trying to figure out what issue is as was working previously.
Now all its doing is charging
Any suggestions
Click to expand...
Click to collapse
Do you have the latest fastboot-adb platform tools installed? Just a thought.

Will check
However usb notification drop down not coming up on phone to change settings when I plug phone into port.
Also plugged phone into USB port of car for android auto and not picking it up

If I restore a backup would that be worth trying or does issue seems to be with usb port on phone?

funkyirishman said:
If I restore a backup would that be worth trying or does issue seems to be with usb port on phone?
Click to expand...
Click to collapse
Try uninstalling and reinstalling usb google drivers on your pc ( or your appropriate driver's for your phone).
Install OEM USB drivers | Android Studio | Android Developers
Discover links to the web sites for several original equipment manufacturers (OEMs), where you can download the appropriate USB driver for your device.
developer.android.com

Are you talking about usb drivers?
I installed this one
OnePlus USB Drivers | Official
Download the latest version of OnePlus USB Driver for your OnePlus smartphone. OnePlus USB Drivers helps your OnePlus smartphone to communicate properly with your computer.
oneplususbdrivers.com
Still not working
Phone not showing up in device manager

Also tried the below and phone just keeps on rebooting
in Developer option > USB debugging ON
turn off phone
connect cable
turn ON phone
Still looking for a solution

Tried cable on old one plus 5 and it's working fine on pc
So must be phone
Any suggestions on what to try