[Q] USB Device not recognized / Unknown Device - General Questions and Answers

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..

Related

g1 will not sync with pc

I've had my g1 for about 2 weeks. I have root. I have the RC33 update. I was able to connect to a pc after this update then one day I tried to get this song off of the computer so I plugged in the phone and it said "found new hardware"....I have tried everything different pc's different usb ports,different storage cards,....I tried the anycut app method....failed on one pc it opened on my laptop and then shut off again....I've soft reset,hard reset...removd the card and put it back in...no luck...any one with the answer please help...I will love you long time!
And the pc does recognize the phone is plugged up because its charging...
Hi,
Found new hardware means it was trying to install the usb drivers for your g1.
If this was not done correctly, than several things won't work like adb.
So that's what that message is.
But unplug your phone and go into settings, applications, development uncheck the box that says usb debugging,
Exit out and connect your cable, mount you drive and you can transfer files back and forth again.
Ok I did that but the box was already unchecked...so I plugged up the phone...and nothing happens so I check the box and the g1 acknowleded the pc and vise versa....and the installation wizard is for Android Phone...and is asking for an installation disk...so now I'm back to square 1...
Once you have plugged in the USB cable and Windows has recognized your phone (i.e. no new hardware found dialog anymore), you need to pull down the notification bar of the G1 and click on "connected to USB" or something along those lines. The phone will then give you an option to mount the SD card for read/write over the USB cable.

[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

HTC One Dual 802d not recognized by any pc or laptop

HTC One Dual Sim (802d) is n not recognized by my laptop. Its charging But, widows applications e.g. HTC Sync Manager, Dr.Fone for android, etc. are not able to recognize the phone even after enabling or disabling debugging mode. I have tried it by reinstalling drivers, application, changing USB ports. try different laptops and data cables But, application don't detect the phone. just dialog appears "usb not recognized" on every laptop/pc. What is workaround for this issue?

PC won't recognize lg x venture for MTP or ADB?

Hello, I just purchased an LG X Venture, model number H700. It is running android 7.0. When I first got it a few days ago, I installed the drivers for it on my windows 7 computer, and plugged it in. I got a pop up on the phone where I set the default USB mode to MTP (media transfer protocol). It worked great, and I was able to tranfer files between my PC and my phone.
Then I tried to get adb debugging to work with my phone, and screwed everything up. I enabled developer options, and then checked USB debugging. I also accidentally hit the "revoke USB debugging authorization button." I installed what I think are the correct ADB drivers on my PC. Then I plugged my phone back into my PC. This time, nothing comes up. I've checked in the device manager, etc., and I can't find a trace of the phone anywhere.
I looked back at developer options under USB configuration, and it's still set to MTP. But somehow I screwed something up, because my phone and computer no longer recognize each other (except for charging).
I even tried my phone with two other computers (one also windows 7, the other mac), and got the same behavior.
Any idea how to fix this? Ideally I'd like to get ADB to work, but I would settle for just getting MTP back haha.
Actually, solved it! Turns out the cable I was using was damaged. I used another one and MTP works fine on all computers.

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

Categories

Resources