Related
I've tried everything I can possibly think of. I have an Asus Laptop with Windows 7 64 bit and absolutely cannot get my Epic to be recognized. I've uninstalled and re-installed the driver more times than I care to mention. I've tried mounting the device to no avail either. I've tried plugging in the phone into each of the USB ports on the laptop to no avail. I need to get the computer to recognize the device so I can get odin to recognize the phone so I can flash back to stock. Right now it doesn't do so. Does anyone have any ideas of what I can do to get this up an running?
Try installing the 32-bit drivers even if you're on a 64-bit computer....
The same issue comes up. It says that the drivers are not successfully installed (even though the installer goes through) and it says "Unknown Device" over and over.
Are you removing previous drivers?
then rebooting before installing new drivers...
also are you using stock cable?
if so buy a new cable you can get cheap ones online for like a dollar just search micro usb cables
Yes, yes, yes. Does the cable really make that much of a difference? I saw that people have had issues but I mean it charges properly all the time so I figured it was ok to use.
Absolutely!!!!!!!!!!!!!!!!!!!!!!!!!!!1
That cable is worthless get a Blackberry cable they are very durable and dependable.
i was having problems also..... all because of the cable.
I'll probably go buy a cable from Walmart, order a cheaper one online from Monoprice and return the other just so I can odin my phone...I really hope that's the issue though.
sporkisfaster said:
The same issue comes up. It says that the drivers are not successfully installed (even though the installer goes through) and it says "Unknown Device" over and over.
Click to expand...
Click to collapse
does it keep looping "unknown device" in the corner, almost like you unplugging and plugging back in repeatedly?
ifso try cleaning the contacts of the usb port on phone and on the small end of the cable.
if not then try totally uninstalling the drivers you installed and if possible when its saying "unknown device" open the device manager, r-click then unistall in there.
USBDview has always been able to dig me out of the home when ive had usb related driver issues... just run it and delete/uninstall anything samsung/android/adb etc related, reboot pc and phone then try again...maybe even redownload the drivers
http://www.nirsoft.net/utils/usbdeview-x64.zip
http://firon.net/xda/usb_drivers_GalaxyS_x64.zip
update (you replied as i was typing): one bandaid for the cable you could try for now is to take a needlenose pliers or something and slightly squish the micro end to try getting a tighter fit.... i had to do that to the cable i keep at work.
You can always just download kies. That's what I did. When I was trying the standalone drivers I had trouble. Installed kies on both of my laptops and coding works beautifully everytime. And I seriously think you guys are ill. Its a cable... its digital. It either works or.it doesn't. I use my samsung wire exclusively. Its thin and I like contour on the plug. Both cables have worked flawlessly on both of my epics.
Sent from my SPH-D700 using XDA App
RushAOZ said:
And I seriously think you guys are ill. Its a cable... its digital. It either works or.it doesn't.
Click to expand...
Click to collapse
You are wrong.
Cables can have breaks in them which give them intermittent connectivity. Also, since this cable has several (5 I think?) single strands of wire in them, a single wire could be screwed up causing this (or the pin for a single wire on either end) That would still allow it to charge, and partially be recognized by Windows, but not allow it to fully communicate causing this problem.
I have a cable that I only use for charging because it has this EXACT problem. Another cable works perfect, but this particular cable gives me the unknown device.
sporkisfaster said:
I've tried everything I can possibly think of. I have an Asus Laptop with Windows 7 64 bit and absolutely cannot get my Epic to be recognized. I've uninstalled and re-installed the driver more times than I care to mention. I've tried mounting the device to no avail either. I've tried plugging in the phone into each of the USB ports on the laptop to no avail. I need to get the computer to recognize the device so I can get odin to recognize the phone so I can flash back to stock. Right now it doesn't do so. Does anyone have any ideas of what I can do to get this up an running?
Click to expand...
Click to collapse
look up and install pdanet. Pick samsung and let it do it's thing.
you're good after that.
Milkman00 said:
You are wrong.
Cables can have breaks in them which give them intermittent connectivity. Also, since this cable has several (5 I think?) single strands of wire in them, a single wire could be screwed up causing this (or the pin for a single wire on either end) That would still allow it to charge, and partially be recognized by Windows, but not allow it to fully communicate causing this problem.
I have a cable that I only use for charging because it has this EXACT problem. Another cable works perfect, but this particular cable gives me the unknown device.
Click to expand...
Click to collapse
Right.. so it either works or it doesn't lol if both cables are in perfect working condition then there would be no issue. Its all preference. I personally use a blackberry micro usb cable. It locks in to the usb port on the phone better. Just so im not paranoid about the wire coming off while flashing... cuz thats bad lol
Sent from my SPH-D700 using XDA App
RushAOZ said:
Right.. so it either works or it doesn't lol if both cables are in perfect working condition then there would be no issue. Its all preference. I personally use a blackberry micro usb cable. It locks in to the usb port on the phone better. Just so im not paranoid about the wire coming off while flashing... cuz thats bad lol
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
I didn't articulate myself clearly, but that is my fault.
If a single wire inside the cable is broken (for the sake of simplicity let's just say it is the RECEIVE cable - from the device to the PC). The PC can recognize that there is a device there, but because the device can't talk to the PC, Windows can tell there is something there, but has no idea what it is since the device can't talk back to the PC. Also, in this scenario the cable would charge just fine since those individual lines are intact.
RushAOZ said:
You can always just download kies. That's what I did. When I was trying the standalone drivers I had trouble. Installed kies on both of my laptops and coding works beautifully everytime. And I seriously think you guys are ill. Its a cable... its digital. It either works or.it doesn't
Click to expand...
Click to collapse
1st off u sir, ARE WRONG.... Maybe when it comes to HDMI Cables but not for these phones.
sporkisfaster said:
Does the cable really make that much of a difference? I saw that people have had issues but I mean it charges properly all the time so I figured it was ok to use.
Click to expand...
Click to collapse
To quote u "Yes yes yes" it does make ALL THE DIFFERENCE... I had the same problem and made serveral posts about it when the phone 1st came out, I tried everything... Uninstalled/Reinstalled/Rebooted many times, Manually deleted the folders where the drivers are held then Re-installed, Installed Kies (which is a P.O.S. and was a BIG WASTE OF TIME imo.) I tried everything and just about gave up until 1 day i looked @ my roomate and asked him 2 let me borrow his cable to his cheap cricket phone 2 see if it would make a difference.
Well it worked... Get a new cable, if you've done what ive done and it still doesnt work, its the cable and not the drivers
I've done just about all I freaking can on this as well.
I've installed, un-installed, and re-installed the drivers. I'm running Windows 7 64 bit on Bootcamp.
I've used USBDView, I've uninstalled all of the connected drivers. They get re-installed, but the phone keeps keeps coming up as an Unknown Device. I try and locate the Samsung USB drivers directory, but it keeps coming up as Unknown.
Does anyone know specifically what directory I should use choose when trying to manually link the driver in Device Manager? I'm having a ***** of a time here.
Anybody have any ideas for me? Thanks.
I had the same problem. Buy a new cable from monoprice. The second I bought a new cable for my 64 bit Asus laptop it worked.
Trust me, buy a new cable.
Sent from my SPH-D700 using XDA Premium App
my solution for odin
sporkisfaster said:
I've tried everything I can possibly think of. I have an Asus Laptop with Windows 7 64 bit and absolutely cannot get my Epic to be recognized. I've uninstalled and re-installed the driver more times than I care to mention. I've tried mounting the device to no avail either. I've tried plugging in the phone into each of the USB ports on the laptop to no avail. I need to get the computer to recognize the device so I can get odin to recognize the phone so I can flash back to stock. Right now it doesn't do so. Does anyone have any ideas of what I can do to get this up an running?
Click to expand...
Click to collapse
I had the same problem. I didn't follow directions to solve my problem in Odin. I had to start Odin and plug my phone in and quickly put the phone into download mode. I did that a few times and finally got it to recognize. With Syndicate, it now recognizes every time. I say that now. LOL
This is how I fixed this problem. After doing all I could think of, uninstall, install, system restore, nandroid restor to when phone was being recognized... all these didn't work for me. I still got the same unknown device in device manager.
The fix: with samsung epic drivers already installed. Turn the phone on, plug into your computer. Let device manager find unknown device. Power off the phone. Boot into recovery. Pc will recognize your phone as samsung android device. Reboot your phone and you should be good to go. Hope this works for the rest of you. Good luck.
Sent from my SPH-D700 using XDA App
boy143878 said:
This is how I fixed this problem. After doing all I could think of, uninstall, install, system restore, nandroid restor to when phone was being recognized... all these didn't work for me. I still got the same unknown device in device manager.
The fix: with samsung epic drivers already installed. Turn the phone on, plug into your computer. Let device manager find unknown device. Power off the phone. Boot into recovery. Pc will recognize your phone as samsung android device. Reboot your phone and you should be good to go. Hope this works for the rest of you. Good luck.
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
Isn't the original issue that the driver install fails? not that the device isnt being readed?
Whenever I plug my phone in my computer I get USB Unrecognized device. I ahve tried a few different cords and also whenever I plug my phone into my computer my touch screen doesn't work very well.
Please help
Try downloading the epic drivers for conputer
Search aroud for it
Idk where it was
Sent from my SPH-D700 using xda premium
Already downloaded those and still nothing
Maybe you got a bad device
Is it new
Did you try another comp
Sent from my SPH-D700 using xda premium
I had a similar problem. If multiple cables do not work, I had to Odin back to stock and bam everything was fine again. This will only work if Odin can see it, which mine did but would not when the phone booted up. Hope this helps.
http://forum.xda-developers.com/showthread.php?t=1052813
jaculop said:
I had a similar problem. If multiple cables do not work, I had to Odin back to stock and bam everything was fine again. This will only work if Odin can see it, which mine did but would not when the phone booted up. Hope this helps.
http://forum.xda-developers.com/showthread.php?t=1052813
Click to expand...
Click to collapse
I had this happen to me with srf 1.2 and its doing it again now, I can't use stock cable for anything other than charging. When I connect to a computer it says the same "unrecognized device" but when I use a thicker blackberry cable everything works fine.
Sent from my SPH-D700 using xda premium
It's the Cable.
I have issues getting my Epic recognized as well, but don't fret.
The stock cable will still work, you just have to give it more chances to recognize.
When you install drivers, they don't always go through on every usb port your laptop/desktop have. some ports will work better, like on-board powered ports.
I assume you know your computer better than anyone else and already know which usb ports never fail you and which ones are a little iffy.
Factors aside, wether you be on xp, vista, or windows seven, or even Windows 8 beta... LOL. Open up device manager.. if your 'unknown device' (your epic) is connected, leave it that way, and go down to the usb ports section of device manager. click down on the arrows and you'll find 'unknown device' that's your epic. Right click, uninstall.
now, do the following.
If you're trying to flash/odin.. make sure your SD card is out. as you want your phone to be recognized for a modem, not a usb massive storage, but if in fact what you're going for is the ability to browse through your phone's sd card with your phone connected, then obviously leave the sd card in.Disconnect the usb cable from your pc's end. Make sure your plug is completely inside your phone's micro-usb port. Now, either try the same port again, or choose a different one, do realize that your computer will have to 'recognize' your phone and install the drivers installed on your computer for each new port you try it on. You'll eventually realize which port works best and get full recognition, just give it a little time and patience and you won't be dissapointed. Old Windows XP takes a little longer for usb recognition than windows vista or snappy windows seven. Cheers and i hope i was of any help to you or anyone else browsing around. =]
I just bought a galaxy s2 running stock gb on ebay and whenever I plug it in any pc it only charges. There is no usb notification nor does computer play a sound when the phone is connected. The phone makes a sound and just charges no matter what I do, I have tried usb debugging on/off and nothing. When I go into wifi/connection settings and select usb mode it says to connect a cable when the usb cable is already connected. I have tried many usb cables including the original samsung one.
Did I just buy a defective phone or am I missing something?
You need the drivers, either Google it or wait for someone to post a link, your call.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
http://bit.ly/QOTfdW
Try all usb ports as well! Even without the drivers you should still be able to use it as mass storage device
Sent from my SGH-T989 using xda premium
Are you using the right cable?
OneOneSix said:
I just bought a galaxy s2 running stock gb on ebay and whenever I plug it in any pc it only charges. There is no usb notification nor does computer play a sound when the phone is connected. The phone makes a sound and just charges no matter what I do, I have tried usb debugging on/off and nothing. When I go into wifi/connection settings and select usb mode it says to connect a cable when the usb cable is already connected. I have tried many usb cables including the original samsung one.
Did I just buy a defective phone or am I missing something?
Click to expand...
Click to collapse
Are you using a data cable and not just a regular charging cable? You still see the option to connect mount the SD card evn without the drivers.
OneOneSix said:
I just bought a galaxy s2 running stock gb on ebay and whenever I plug it in any pc it only charges. There is no usb notification nor does computer play a sound when the phone is connected. The phone makes a sound and just charges no matter what I do, I have tried usb debugging on/off and nothing. When I go into wifi/connection settings and select usb mode it says to connect a cable when the usb cable is already connected. I have tried many usb cables including the original samsung one.
Did I just buy a defective phone or am I missing something?
Click to expand...
Click to collapse
I'm not sure if this works on stock gb buy try going to settings/storage. Then press menu and if another settings option comes up then go there and see if there is an option to mount as mass storage device
Sent from my SGH-T989 using xda premium
Having the same issue, can it be that I am using a backed up ROM? I know that there are times when having a backed up ROM changes your system to R/O instead of R/W
---------- Post added at 06:12 PM ---------- Previous post was at 06:09 PM ----------
MY PC basically does three quick beeps, like the ones it would make when connecting to the phone.... the only difference is when properly connected it would make one beep. I have 6 USB ports and have used all of them. In Root Explorer it states "Cannot detect SD card" that happened after i clicked on SD card to see what files were there.
I did a fresh flash of a ROM and now I am not having issues connecting to PC.
similar problem
I have the same problem of my gs2 not connecting to the computer. The only difference is that it isn't new, and I've been connecting to the computer using the exact same cord for a while.
I'm not really sure what the problem could be, it was working fine as recently as yesterday
Had the same issue I had to send it in for repairs USB port on the phone was effed up
Sent from my SAMSUNG-SGH-T989 using xda premium
Download kies and confirm cable is include data transfer
Sent from my SAMSUNG-SGH-T989 using xda premium
Galaxy s2 not don't detect on pc
JBMe94 said:
Download kies and confirm cable is include data transfer
Sent from my SAMSUNG-SGH-T989 using xda premium
Click to expand...
Click to collapse
Hi. I have the same problem on my galaxy s2. running jelly bean. it all started after i updated the new firmware. when i connect my phone to my pc it does nothing. it only charges. iv'e done everything i can think off. installed Kies. changed cables. changed Pc's. tried on my laptop nothing its not picking up anything.even went into the USB utilities and it says connect USB cable to use mass storage. . it keeps on saying that. iv'e tried the debugging thing switch it on and off it doesn't work. i have even dialed *#7284# and my device is on PDA. like i said i have tried everything and no luck . Help
OneOneSix said:
I just bought a galaxy s2 running stock gb on ebay and whenever I plug it in any pc it only charges. There is no usb notification nor does computer play a sound when the phone is connected. The phone makes a sound and just charges no matter what I do, I have tried usb debugging on/off and nothing. When I go into wifi/connection settings and select usb mode it says to connect a cable when the usb cable is already connected. I have tried many usb cables including the original samsung one.
Did I just buy a defective phone or am I missing something?
Click to expand...
Click to collapse
Install moboro on ur PC, make sure developer options is enabled, and debugging is ticked, moboro will install needed drivers for phone to be seen, check to see if the phone is rooted y downloading root checker from play store, if it is rooted it may be an issue with the rom, try downloading Odin and putting the phone in download mode, Odin should see the device and say "added", if so go to sammobile.com find ur devices newest firmware and DL the file, use odin to flash the firmware on the phone, should solve all issue, u can also use Odin without being rooted too so, if u need more info, links or whatever, just let me know
Sent from my SGH-T989 using xda premium
WARNING
I had the same problem about a month ago. I had sent it to Samsung and they replaced the USB part of my phone. So if nothing works, DON'T PREFORM A FACTORY RESET IF YOU'RE ON STOCK! THAT CAN MAKE YOU STUCK ON A BOOT LOOP! but if you're lucky then everything will work fine. I only say this because it happened to me.
Long time lurker, finally joined up. Had realized this was a problem for a bit. But, I would like to root my phone and with it not recognizing, I'm not seeing how it's possible. Tried all the normal things, restarted computer (MBP 17") restored phone to factory settings, tried different cables, played with all the different default connection settings, turned usb debugging on and off. The phone just charges, nothing shows up to choose connection type like it used to. The GF's Evo3d works fine. Tried doing some research to see if there are different drivers for the mac on the regular evo4g vs the 3d, and it doesn't appear to be. Kinda at a loss of what is going on. It is possible that the pins inside the usb on the phone are damaged?
Any direction would be appreciated.
Thanks
Steve
If there's no way for me to figure out how to make it recognize, is there a way to root and install a custom rom or ICS without manually connecting it...ie wifi?
Just as a basic troubleshooting step, you might consider trying to connect it to a different computer.Or test using a different cable.
And yes, USB ports do fail on Evos sometimes.
Sent from my PC36100 using xda app-developers app
NxNW said:
Just as a basic troubleshooting step, you might consider trying to connect it to a different computer.Or test using a different cable.
And yes, USB ports do fail on Evos sometimes.
Sent from my PC36100 using xda app-developers app
Click to expand...
Click to collapse
Tried multiple cables with my laptop and GFs...starting to think it's the actual micro usb connector in the phone. Her Evo3d works on both computers and with several cables...mine doesn't with any. May try to complete it by accessing the files through bluetooth...not sure if that's a good idea or not though
I hope I posted this in the right subsection.
I used to be able to connect my s3 to my computer just fine. Now When I try to connect it, it randomly connects and then disconnects after a few seconds going back and forth like that. My computer doesn't have enough time to install the drivers for it since it disconnects on its own like that.
This is not my computers problem since it wont connect to my other computers. I even tried reinstalling the os on my pc for new set of drivers, but no luck.
Im sure it has something to do with my phone. My phone is rooted, so if any fixes include being rooted, Im good with that.
I tried changing from mtp to ptp connections, removing the battery, trying different usb ports and cables.Tried with usb debugging on and off too.
Im at my wits end here. please help!
Your usb port may be going bad. Check the port for any built up lint or other crap. Also check the pins, make sure they are all there and straight.
I tried another USB cable and it worked
Sent from my SGH-I747M using XDA Premium 4 mobile app