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Just recently my computer stopped recognizing my phone. i plug it in and it says usb device not recognized. i deleted then reinstalled the drivers and that didnt work. shut off the phone pulled the battery and then my computer said downloading drivers or w.e. but then said download failed. tried rebooting and pullin batts on both but still nothing new. Any help?
had the same problem, solution? Get a new/smaller usb cable!
Lol using my old backflip recognizes my captivate and works like a charm, after a while the long usb cable degrades.
Try using a different USB port.
Sent from my SGH-I897 using XDA App
Same problem on my laptop
No problem on my desktop
Just use a 2nd computer
Or reinstall windows
Swyped from gingerbread powered captivate
Had the same problem on my laptop.
Happened after Win 7 SP1.
Strangely it only affects 3 USB ports on the right side. Not the single one on the left. :/
Sent from my Captivate. Andromeda 3, Onix 2.0.5 @ 1.2Ghz
41LY45 said:
Had the same problem on my laptop.
Happened after Win 7 SP1.
Strangely it only affects 3 USB ports on the right side. Not the single one on the left. :/
Sent from my Captivate. Andromeda 3, Onix 2.0.5 @ 1.2Ghz
Click to expand...
Click to collapse
my laptop only has 3 usb ports
so all of them were affected.......bug?
my desktops USB's are fine though
I tried the two on the right and the one on the left but still not working. i still get the option on my phone to mount it and such but nothing happens as usual. Ill try a different cable later today. My roommate has a captivate so when i go home ill try his cable and if that doesnt work then his computer and we shall see. thanks for the responses
I had the same problem. I tried multiple computers, cords, drivers. Nothing worked. Eventually I got a replacement cause it was still under warranty.
I have been searching for about a week now and still can't figure this problem out. I bought this phone used about a month ago and I haven't tried to connect it to my pc until just recently. I am wanting to root and unlock my phone but I can't connect to pc using usb cord although it will charge it.
I am on GB 2.3.6 vuvkj6, stock.
I have tried 4 different usb cords, 4 different pc/laptops and all usb ports. I have also installed and uninstalled several usb drivers with no luck.
My phone can only get into download mode using a jig. Even in download mode, I can't connect to pc. I have tried using Heimdall, Odin, and kies but it just does not connect.
If I can use a jig to get it into dl mode, does that mean the phones usb port is fine?
I just want to be able to connect with pc. Is it possible to flash using my sdcard? I am thinking maybe the phone is missing something to pick up the usb signal or something.
I am lost, any help would be appreciated.
Maybe, I think it's a phone issue.
Do you still have a warranty?
I bought this phone used, so no warranty. If the jig works, does that mean the usb port is ok?
Does the phone charge when plugged in? Have you tried to go ahead and flash even though it says not recognized?
ligitalipeople
Yes the phone does charge when plugged in. I can't flash using Heimdall or Odin. Any other way of flashing?
I have also put the phone into debug mode with no luck.
Have you done a factory reset?
Yes, I have done a factory reset.
FINALLY! I got it to work.
Can you post back here and tell us what you did to get it working in case someone else has the issue?
Thanks and glad you got it going!
I am not sure what made it work for me. But what I did was "clear memory" on ram. I don't remember how I got onto that screen but I clicked on ram and clear memory.
I then pushed the usb into the pc a few times really fast until pc showed somethnig other than "usb device not recognized". Pc then started to show device connected.
if you are using windows i have found that sometimes the usb ports u used for the phone get stuck to the driver that was there in the first place. So what I do to fix this is go into device manager from the control panel and then uninstall the drivers for the specific port that I am trying to use. While keeping my phone unplugged from the computer I then reinstall the samsung drivers, restart my computer and then try to plug my phone in. 90% of the time that has been what works for me.
Ok, I figured out the problem. It has nothing to do with the drivers or clearing ram memory. My problem is the actual micro usb connection. If is a little loose from side to side and when I push it to one side, it connects no problem.
That is the exact same thing that happened to my wife's phone... luckily it was still under warranty...
Sent from my SGH-T959V using Tapatalk
My phone is out of warranty. At least now I know the problem. It was extremely frustrating trying to figure it out.
So my girlfriends little brother gave me his skyrocket. He asked me to backup his pics, which I did with no problem. I then did a factory reset. After that, my computer does not recognize the phone! I've tried different cables, different computers. My girlfriend has the exact same phone, connects right away.
I even flashed it with a different rom and put ICS on it. No luck! I then proceeded to take it to a phone repair place, thinking it might be the actual usb port. They said they checked out the port, and it look fine. All solder joints were good, no bent pins.
The weird thing is, is that it connects on an average of 1/20 times! It charges perfectly too. The phone doesn't go in and out of charge mode if i wiggle the cable either. I'm kind of confused! Is there a file on the phone that tells the computer what it is when connected? If so, can I manually replace that file? WHAT DO I DO!
When you goto recovery mode can you goto mounts and say mount usb? and does the pc recognize it then?
Sent from my SAMSUNG-SGH-I727 using xda premium
Kind of. We had trouble with it when flashing it. I personally didn't flash it. I watched my friend do it
Sent from my SAMSUNG-SGH-I727 using XDA
You could try installing the drivers again..
You mean on the computer? I did that. No luck. It does connect more often though WITH the drivers.
I had some problems with USB connectivity too. Using the cable that the Skyrocket came with solved my issues.
Have you tried any combination of restarting and reinstalling the drivers?
Swyped from my Nook Tablet, running CM7.
Yes. I've tried multiple cables including the stock cable. Installing drivers, restarting both devices. I have definitely ruled out the cable, the PC ( PC's actually), and the physical USB port.
Sent from my SAMSUNG-SGH-I727 using XDA
I had similar issues, messed with phone for a bit and came up with this
System settings>more>USB utilites
Now I got a screen that says USB mass storage with a button that says Connect storage to PC. Tap Button.
A window will pop up asking to Turn off USB debugging (if on) Tap OK
Connect USB cable to storage (plug USB cord into PC).
You should now be at the USB Mass Storage screen, Tap button at bottom (Turn on USB storage)
I found this to be the way to turn on Mass Storage since I flashed ICS, I believe. Hope this helps you, it took me a little while to figure out.
ChillFactorz said:
I had similar issues, messed with phone for a bit and came up with this
System settings>more>USB utilites
Now I got a screen that says USB mass storage with a button that says Connect storage to PC. Tap Button.
A window will pop up asking to Turn off USB debugging (if on) Tap OK
Connect USB cable to storage (plug USB cord into PC).
You should now be at the USB Mass Storage screen, Tap button at bottom (Turn on USB storage)
I found this to be the way to turn on Mass Storage since I flashed ICS, I believe. Hope this helps you, it took me a little while to figure out.
Click to expand...
Click to collapse
Of course, that's how it's always been except in a slightly different location on ICS
I've tried that also. Didn't work
Sent from my SAMSUNG-SGH-I727 using XDA
it basically sounds like the USB port on the phone is dead. Warranty that sucker
I took it to a repair shop. They said the port was perfectly fine!
Sent from my SAMSUNG-SGH-I727 using XDA
Not to mention that it was working perfectly before I did the factory restore
Sent from my SAMSUNG-SGH-I727 using XDA
how exactly did the repair shop test it?
try plugging it into another usb port on the same computer or try using a different computer. It could be the usb port on the PC itself.
gokartracer5 said:
try plugging it into another usb port on the same computer or try using a different computer. It could be the usb port on the PC itself.
Click to expand...
Click to collapse
That's the first thing he tried, it's in the OP
yeah i've tried everything! The repair shop determined that the port was good by examining it under a scope and they also said they tried re-flowing the solder joints. They said they wanted to stay away from replacing the usb port because it was very difficult to replace, not to mention they didn't warranty the job!
Someone has to know the answer to this!
Sent from my SAMSUNG-SGH-I727 using XDA
if its still under warranty replace it, thats all u can do. No one else in this forum besides u can physically touch the phone, so if you've tried all suggestions thats all thats left
i have the same problem but mine is little different, when i power off the phone it keeps on going to download mode, i keep on restarting it and it goes back to download mode, i flash stock rom and it does the same, i flash ics rom and it keeps on doing the same can anyone help?
When I plug my Note 10.1 into the USB port on Win 7 or Win 8 I get a message about the device is unrecognized/malfunctioned. Are others seeing this or do I perhaps have a bad device. I can use an adapter and plug a USB flash drive into the tablet and it reads it so I assume the device is working, but...
This can be solved easily:
Download KIES, install it. With this You install the neccessary drivers since some Notebooks and or PCs don´t recognize the MTP-drivers of the Galaxy devices
At least this helped me on 4 PCs that did not recognize my Galaxies, the other 4 PCs had no prob with the Galaxies and were recognized immediately as MTP without KIES.
Maybe the profs here have an even easier solution ................................
Dunno with Win8 since this is not released yet and might be too buggy ..............
I did that, installed kies, and I get the same problem, kies shows connecting but never connects to the tablet. This is the galaxy tab 8.9 all over again! I need to backup my device any other ideas?
Did you try different ports.... Cable..... Reboot the computer... Reboot the device etc.?
Sent from my SGH-I897 using Tapatalk 2
Last hope:
Go into Kies , click connection problems which reinstalles the drivers (might take up to 10 mins or gets stuck) , reboot PC, check if activesync is active (!!!!!!!!!), connect again.
In case of failure try on another PC
If failure is on every other PC reproducible send it in for repair
It was the cable
I now know what the problem is. I used the cable from the power adapter for all my tests and failures. I had ordered a 3rd party cable on Amazon. On a lark I tried this cable and sure enough I can connect to the PC. The genuine Samsung cable fails but the third party one works.
Or my computer won't recognize my phone... not sure which.
Anyway, when I plug the phone into my computer it still charges, but I don't get the option to use it as a mass storage device, so I can't transfer files between phone and computer.
I got a new usb cord about two months ago and it worked up until now, so I don't think it's the cord.
I've tried taking out the SIM card and battery, restarting phone/computer, installing KIES, toggling USB debugging... not sure what else to try.
Anyone else ever have this problem?
Go into device manager on the pc with the phone plug in. There will be a usb port with an exclamation mark on it. Manually update the driver to android adb interface.
Sent from my Nexus 5 using XDA Free mobile app
Ok I just tried that... I don't see any exclamation marks anywhere.
I tried reinstalling the drivers from Samsung's website and that didn't work either.
mkmossop said:
Ok I just tried that... I don't see any exclamation marks anywhere.
I tried reinstalling the drivers from Samsung's website and that didn't work either.
Click to expand...
Click to collapse
Your pc isn't recognizing that your device is connected at all. It's not a driver issue. It's either the usb cord or the usb port on your phone that's not working
Sent from my Nexus 5 using XDA Free mobile app
Hmm alright... I'll buy another cord and see if that works... thanks.
@jd1639 nailed it, imo. You've either got a bad cord or a bad port. I'd try a different USB port first, and if that doesn't solve it, you know you've got a bad cord.
This seems to be a funny issue cause now all of a sudden it's working... not sure what happened. It could have been installing the driver and then restarting my computer, or playing around with USB debugging again.
I've read other places of guys trying different cords, etc and nothing working, and then they just take their battery out and back in and then it's working again. So ya no idea.