Samsung :: T255G USB Device Not Recognized, It Won't Connect To PC?
Dec 21, 2010
I'm trying to get my Samsung SGH-T255G to connect to my PC, but I'm getting a USB Device Not Recognized warning when I plug the USB in. I've tried both the front and rear ports, no difference.I have the Samsung driver v14.0.0.162 installed (did not plug in cable during install).I downloaded both Samsung PC Studio 3.2.3 and PC Studio 7.2.24.9. The applications work fine, but won't connect because of the Device Not Recognized issue. The phone sees USB power and begins charging when connected. I have it turned on and at the main "idle" screen. Does the phone have to be in a certain mode to connect? Not familiar with how to do this. I'm running XP Pro on the PC.
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May 6, 2012
I've started to get the "USB Device Not Recognized" error almost every time I connect my S2 to my laptop. This started happening after I flashed the phone with an official version of ICS 4.0.3. The installation went flawlessly, yet I am having a hard time having the phone recognize the computer.
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Jan 2, 2010
When i hook up the usb cable to the phone and pc i get a message on pc that usb not recognized device attached has malfunctioned and on the phone says connect failure. Has anyone else had this problem and if so what is a fix for it.
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May 7, 2012
believe the source of the problem to be a faulty install of ICS plus a later rooting, as the phone would intermittently go from Android Phone to Unable to Recognize USB Device, to just not being able to recognize the phone. I've uninstalled KIES along with the drivers and installed them back again to no avail. Is it possible to flash the phone with a working Android version without using the computer - through the SD card?
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Aug 16, 2011
I have a S2 with 2.3.3 installed. I did upgrade previously using Kies. I now want to connect the phone to Kies, but it does not work properly.I connect the phone to the PC and it is detected by Windows. I can even browse the files in Windows Explorer. When I start Kies, it just says "Connecting..." but fails after a while with error "Can not start service on device". The phone screens shows that I am connected to Kies.
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Apr 13, 2012
while trying to recharge my 9300 curve the message box comes up saying "USB Device Not recognized" . Location of device is in USB Root Hub - Unknown Device. I Tried reconnecting but doesnt change anything. It also says to replace the device. Can I try something else or do I have to replace the device? How do I get the current infoout of the old device?
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Oct 31, 2011
When I connect my smartphone to my desktop computer via the USB cable, the computer fails to recognize the device. I have attempted reinstalling Blackberry Desktop Software multiple times. My desktop is a windows pc that is running Vista. I am currently running version 6.1.0.35 of Blackberry Desktop Software.
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Oct 17, 2012
I recently dropped my phone in water, and as a result it wouldn't work (obviously!). I took it to get fixed, and the entire back was replaced. This resulted in me getting a new bbm pin etc. I was told that this would work fine, and that I would still be able to use bbm and my wireless internet (such as bbm, twitter, facebook etc) When I called o2 to have my blackberry services reactivated, they told me that "the device cannot be recognized" Now I'm wondering what else I can do. Is there anything I or o2 can do to fix this problem? Or perhaps the shop that fixed my phone?
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May 22, 2011
I just bought this phone Sony Ericsson Xperia X10. First of all, there was no CD for installing softwares however i got the PC companion software from the internet
but the main problem is that when I attach my phone to my laptop (windows 7) using the USB provided, i get a msg saying:
"USB Device Not Recognized
One of the USB devices attached to this computer has malfunctioned, and Windows cannot recognize it."
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May 29, 2012
I have iPhone 4, when I plug it in my computer, it says" USB Device Not Recognized" and nothing happens. iPhone doesn't appear in iTunes. But it charges. Everything was okay all time before and I have no idea what happened. Just once I plugged it in and and computer didn't recognize the phone.
Info:
iPhone 4, Windows XP
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Apr 18, 2012
I plug my phone into my laptop and literally nothing happens. it doesnt charge, itunes doesnt recognize it, i cant sync or update. I have restarted my computer &updated itunes.
Info:
iPhone 3G
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Apr 28, 2012
My iPhone 4 is not being recognized as a USB device by my computer, therefore I can't synch to iTunes. It is also not being recognized when I plug it into the USB port in my car, so it is something with the phone, not my PC. I have the latest iOS on the phone and everything was working fine until today.
Info:
iPhone 4, iOS 5.1
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Sep 21, 2012
I keep getting a message popping up saying "Security on device can not be recognised", how do I get rid of this message altogether.
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Apr 4, 2012
I have been using Blackberry protect and App world with this device but recently it sent me a mail to validate my ID credentials. The problem is that through the device I cannot validate as its returning error of invalid password / ID.I can log on with same password and ID on my desktop PC and recognises this device but it could not communicate with it. It started yesterday. BlackBerry ID not recognized via device
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Jun 18, 2010
When I connect my 5230 to my laptop via the usb, the laptop thinks "device not recognized", do I need to change my laptop settings or phone setting ? Try not to blind me with science.
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Oct 22, 2011
I have this old 9700 I got from a friend that he says is bricked. I took a look at it and when I put a battery on it, it blinks twice, pause and blinks twice again. It does that and never loads. So I thought, this would be an easy fix. I would just reload the OS and it's good to go. But I was wrong.First thing I did is I went and installed an OS6 (.650) and tried the loader.exe but when I click on Next, it does't recognize a PIN, it says USB-PIN: UNKNOWN. I clicked on next nevertheless and tried to reload the OS but then it won't go past the Loading JVM step which is the second step I guess, being 'Erasing Applications' as the first one. I left it for a couple of hours and it still won't load the OS.Next thing I did is tried to wipe the phone using BBSAK, CrackUtil and JL_Cmder. With the CrackUtil, it says 'Phone not connected' while the JL_Cmder won't let me wipe it. It just keeps on going back to the Menu after I've typed 'blackberry'. The BBSAK won't recognize the phone either.I tried using Desktop Manager as well. It can see that the phone is a 9700 but on the PIN, it says 0.One more thing I noticed, when I put on the battery, the red blinks but when I take off the battery and just plug the USB cord, it won't do anything. My computer will do something (makes a sound and 'recognize' the device in a way) ONLY if I have the battery put on before I put the USB cord on. If it's the USB cord alone, without the battery, it stays dead. Which is weird since in my experience, my computer always recognize BlackBerry devices whether a battery is present or not when you plug the USB cord.Oh and BTW, now my computer doesn't read my phone anymore, whether I put the battery in or not. The phone keeps blinking though, when I have the battery on. Blinks twice, pause and do it all over again.
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Apr 21, 2012
i just got my iphone 3gs connect it to my little notebook it comes up on my computer but itunes does not recognize it ive tried all the walk troughs on Internet and still nothing?
info:
iphone 3gs
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Apr 23, 2012
I had the problem of iTunes not recognising the iPhone on MOST occasions when I start it. Sometimes it would sometimes it wouldn't. This has been going on for 4 months. After running through all the tips on the web, from apple and everyone else i finally discovered I was low on Disk Space (I tried to copy the iTunes backup files to another location to protect them and they wouldn't fit). So I cleaned out my hard disk and everything worked.
Paul de Rome
Info:
iPhone 4, iOS 4.3.3
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Apr 29, 2012
USB port is working properly, however itunes does not recognize any iphone on my iMAC. What should I do? Iphones are recognized on other computers Windows.
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May 5, 2012
Have insatlled IOS lion on Mac book pro and IOS on I phone. I was able to sychronise phone with mac book on wireless without USB cable.
Have changed my i phone handset but now its not happening on wifi - it can be done only by connectiing USB cable.
Info:
MacBook Pro, Mac OS X (10.7.2)
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May 6, 2012
When I plugin my iphone 4s to windows 7, it is detected as generic usb device and is not shown up in itunes. Itunes is able to detect my iPod classic device though..
Info:
iPhone 4S, iOS 5
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May 25, 2012
when I try to connect my 3gs or my wifes 4 or my daughters ipod tough to my pc (xp) it tries to install the drivers for the device then gives an error that says your device was not installed properly.
Info:
iPhone 3GS (8GB), iOS 5.1
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Jun 28, 2012
When I plug in my iPhone 4 to the computer the USB device is not recognized and the device doesn't show up on iTunes.
Info:
iPhone 4
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Jul 8, 2012
When an audio device is connected to my car audio, the symbol ♪ appears, telling me that not only a PHONE device is connected, but also an audio device, so that I can make calls and also listen to music (in 2 different sources: one for calls (BT Phone channel)and other for mp3 (BT Audio device) < this one with a real good audio).
I connected my nokia c3 to this car audio but it wasnt recognized as an audio device, only as a phone and the symbol ♪ didn't appear. That is, I CAN play songs, but the audio quality is horrible, trashy, as if it was a phone call (cuz it will use the bt phone source, not the bta device). But when i connect any other phone, the audio plays normally.
I got the c3 connected to my PC and it was also recognized as a phone (and also a modem) BUT NOT as an audio device.
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Aug 25, 2011
I purchased a 16gb micro sd for the phone. Copied files to it and inserted it into phone. When phone is connected to usb the card mounts and I can see it from the PC and copy files to it. When I try to browse the card from the phone, it is not found. I thought I had formatted it FAT32, but of I look at card properties in file explorer on the PC, it says 'File System: Generic hierarchical'. So I'm thinking perhaps it is not formatted properly. If I am to try another format, is it best to let the phone format it, or do it in a card reader on the PC first? I'm worried if I let the phone do it I may wipe my internal SD by mistake.
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Nov 15, 2011
Basically when trying to play .mp3 files certain albums/folders aren�t being recognized by the music player. I have a folder called Music and within that I keep a load of folders with albums inside each. However for the albums that wont play, if I move individual songs outwith their album folder so that they just sit as loose files within the music directory then the music player recognises them.
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Feb 11, 2012
When I plug this phone with a usb cable it's driver is recognized however the media card and device are not listed as mass storage drives.. I have no way of accessing device/media card content through my computer. I checked bb device options and "Media Card Support" is "on".
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Sep 13, 2012
Recently when I plugged my Bionic into the USB port to download some photos, I received a device not recognized popup. From day one I have been able to plug this in, and Windows 7 would automatically assign a drive letter and I had access to my SD card. I have downloaded the Motorola Device Manager. From what I can tell, it should appear in the system tray. It does not. I have uninstalled, then reinstalled this program to no avail. Opening the case to remove the SD card to stick it into the card reader on my computer is a major pain.
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Feb 3, 2012
So far my SD card has unmounted itself twice, and I've had to remove the battery and reseat the card. Yesterday it unmounted, and now I can't get the phone to recognise there's a card installed (I've tried 2 different ones). Running Gingerbread 2.3.4 standard Samsung firmware, no network customization and not rooted.
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Jul 29, 2012
I'm new to smart phones and trying to find my way around them. I had an Orange San Deigo phone and purchased a few apps for it and they ran very well (It's a pity the phone didn't work properly) I was upgraded to the Galaxy S2. I have now tried to install the apps on to the Galaxy but the Galaxy is not recognized in the download screen
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Jan 23, 2012
After 5 months cool job my phone 2.3.3 GT-I9100 SGS2 running India distribution unlocked. Not rooted start showing constantly an icon of a plain as it was in flight mode and if you go to settings it shows that the flight mode is off. Also it is not recognising any SIM. Currently I am in UK.
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