[Q] Phone not detected by computer when connected via USB - Samsung Epic 4G Touch

I was flashing several different ROMs last week so I could try them out first hand. I settled on Universe ROM. Now my phone is not detected at all, by any computer, whether in Android Or Odin mode makes no difference. I flashed back to Calkulin's E4GT2 ROM, which was already on my SD card, still no worky. Please help?!?!?!?!

ElectriCole said:
I was flashing several different ROMs last week so I could try them out first hand. I settled on Universe ROM. Now my phone is not detected at all, by any computer, whether in Android Or Odin mode makes no difference. I flashed back to Calkulin's E4GT2 ROM, which was already on my SD card, still no worky. Please help?!?!?!?!
Click to expand...
Click to collapse
Uninstall and reinstall drivers... Also try another usb cable (This has happened to me as well, did these steps and she worked!) I am on windows 7 about half the time (Ubuntu 12.10 the rest of the time) so i'm always able to get into it some how.

Tried that already
milky1112 said:
Uninstall and reinstall drivers... Also try another usb cable (This has happened to me as well, did these steps and she worked!) I am on windows 7 about half the time (Ubuntu 12.10 the rest of the time) so i'm always able to get into it some how.
Click to expand...
Click to collapse
Yeah, I've tried those steps before, again and again, on different PCs with different cables, using a nice high quality one now, still no dice. even when i go turn on USB Storage in settings i still get no detection by any computer. My phone only charges so i cant wipe my phone or anything because Odin never sees it.

Same here
ElectriCole said:
I was flashing several different ROMs last week so I could try them out first hand. I settled on Universe ROM. Now my phone is not detected at all, by any computer, whether in Android Or Odin mode makes no difference. I flashed back to Calkulin's E4GT2 ROM, which was already on my SD card, still no worky. Please help?!?!?!?!
Click to expand...
Click to collapse
I have a similar issue. This happened just after I rooted my phone. No USB connetion.....more or less. I'm now running Windows 8 and when I installed the drivers and connected my phone Windows starts the installation and it detects the SAMSUNG USB Composite Device and the SAMSUMG Mobile Modem but I can't access the SD card or internal memory. I changed the cable and reinstalled the drivers. I even installed Kies and it says that my device is not supported....any more ideas?

have you checked to see if you are in the "AP" mode when you dial ##8778#, you need to have a stock dialer for the codes to work on some custom roms the dialer codes will not work.
Default is set to"AP"
"AP" <----....xfer files
"CP" is used when programing to other carriers..etc...via CDMA Workshop.......
"ALL" <-----some people like to use this setting

didn't work
Unknown Zone said:
have you checked to see if you are in the "AP" mode when you dial ##8778#, you need to have a stock dialer for the codes to work on some custom roms the dialer codes will not work.
Default is set to"AP"
"AP" <----....xfer files
"CP" is used when programing to other carriers..etc...via CDMA Workshop.......
"ALL" <-----some people like to use this setting
Click to expand...
Click to collapse
I tried this as well. it was set to AP. tried setting to ALL and then back to AP. neither setting makes a difference.

Nother thought.. have you tried different USB ports as well?

YES
milky1112 said:
Nother thought.. have you tried different USB ports as well?
Click to expand...
Click to collapse
Yes. This problem persists not just on my PC (all ports) but laptop (same) as well as work PCs and my friends'. My phone will now only charge. No computer "sees" it. Even in Odin Mode, Odin won't pick it up.

ElectriCole said:
Yes. This problem persists not just on my PC (all ports) but laptop (same) as well as work PCs and my friends'. My phone will now only charge. No computer "sees" it. Even in Odin Mode, Odin won't pick it up.
Click to expand...
Click to collapse
I had this problem before with my Windows 7 computer.. I had to wipe the drivers from the computer.. Reinstall them again.. Changed cables and suddenly worked. (I think i did a restore back a few days to when it did work as well.) TBH i don't have many other ideas.

ElectriCole said:
Yes. This problem persists not just on my PC (all ports) but laptop (same) as well as work PCs and my friends'. My phone will now only charge. No computer "sees" it. Even in Odin Mode, Odin won't pick it up.
Click to expand...
Click to collapse
I had the problem when I was running the ParanoidAndroid ROM, I couldnt tell you how many times I odin'd EL26 and clean flashed. My usb worked fine after flash until I installed my apps using TB. So I went app for app, installed an app, plugged into my laptop. For me it was the simi clock widget whenever I installed that it would no longer link up to computer. I uninstalled it and am now back to normal.

Same here with Jedi Jelly 4 |4.1.2||Flashbar|| 1|17
Please help.

Samsung phone are REALLY picky about what cables you use. Some cables will only charge the device when you plug into USB, others will allow you to interface with a PC. The stock cable that came with your E4GT is the best to use, also the HTC smartphone microUSB cables work too. Hit and miss with LG and Motorola cables.

Do you have extweaks on that rom? If so you can force it to hook up thru the usb settings section.
When I originally rooted the same thing happened. It was almost like it had no setting to hook up to a PC. Only fix I found was driver sweeping the pc, reinstall the drivers, and switching roms untill one hooked up again. Repeat the driver sweep for each rom. It was a hassle but it worked. Landed on the blu kuban.
E4GT on Blu Kuban FI27, running XDA app.
"This is the Droid I have been looking for!"

agent852 said:
Samsung phone are REALLY picky about what cables you use. Some cables will only charge the device when you plug into USB, others will allow you to interface with a PC. The stock cable that came with your E4GT is the best to use, also the HTC smartphone microUSB cables work too. Hit and miss with LG and Motorola cables.
Click to expand...
Click to collapse
really? because I've been having the same issue and I haven't done any mods or anything with my phone yet...pretty stock. But I took it to a boost near me and the clerk plugged it at it got detected in no time.
I plugged other devices into the same USB_port with the same cable and the port and cable seem to be fine in my computer and no go, got the latest driver still nothing, and at some point I tryed to older drivers and still nothing.
I guess i'll have to try another uUSB cable. I only have one laying around
am running Vista x64, the pc at the store was running 7 x64 btw, not sure if that makes any difference

agent852 said:
Samsung phone are REALLY picky about what cables you use. Some cables will only charge the device when you plug into USB, others will allow you to interface with a PC. The stock cable that came with your E4GT is the best to use, also the HTC smartphone microUSB cables work too. Hit and miss with LG and Motorola cables.
Click to expand...
Click to collapse
Hi ALL....
I am using Micromax A56 phone... recently my pc is not recognizing my phone for viewing files through windows explorer... but it does only charging perfectly... i am using the same USB cable and pc with which I was able to view files of storage through pc..
Can someone help me to resolve this issue....
Thank you,,,
Rajesh

I've had same issue with Samsung Galaxy S4 (I9506). After a week of trying all available custom and official rom's I've followed pariah1570 advice to uninstall some apps and it worked! Great thanks. I don't know yet which app caused this problem, but I'm installing it one by one and checking.

Related

[Q] gingerbreak root problem

I've been trying to root my epic 2.2 with gingerbreak and it doesn't work. I've done It before and now it says "Not sure what happened.exploit failed or reboot failed. Reboot manually and see if you have Superuser" I did everything right
Does anyone know how to fix this?
mummer96 said:
I've been trying to root my epic 2.2 with gingerbreak and it doesn't work. I've done It before and now it says "Not sure what happened.exploit failed or reboot failed. Reboot manually and see if you have Superuser" I did everything right
Does anyone know how to fix this?
Click to expand...
Click to collapse
Use the 1 click
Sent from marcusantrom v5
marcusant said:
Use the 1 click
Sent from marcusantrom v5
Click to expand...
Click to collapse
Which one?
The one for cwm 3.0.2.5
if you cant live large, look big in the coffin!!!
Also, supposedly, gingerbreak only works on phones that have odined to ec05. That's the consensus at least.
Sent from my perfect epic
musclehead84 said:
The one for cwm 3.0.2.5
if you cant live large, look big in the coffin!!!
Click to expand...
Click to collapse
I keep getting "phone not connected" any suggestions
I have tried all available options for troubleshooting and can not figure it out. The drivers are good, different cords, different Root techniques, I mean everything ... but my phone won't connect even after re-installing the samsung drivers.
Windows Vista
64 bit
phone EC05
firmware 2.2.1
stock everything
hooover said:
I keep getting "phone not connected" any suggestions
I have tried all available options for troubleshooting and can not figure it out. The drivers are good, different cords, different Root techniques, I mean everything ... but my phone won't connect even after re-installing the samsung drivers.
Windows Vista
64 bit
phone EC05
firmware 2.2.1
stock everything
Click to expand...
Click to collapse
Did you try a different usb port or a different pc, if available?
Sent from my perfect epic
zanderman112 said:
Did you try a different usb port or a different pc, if available?
Sent from my perfect epic
Click to expand...
Click to collapse
I have tried all ports on my PC, no I haven't tried to use another PC though.
I just Rooted my friends brand new epic 10 days ago. I just can't figure out how to make my device connect as itself instead of "unknown"
Try the Bonsai MasterKey Unlocker, you will like it better than the stock CWM 3.0.2.5
Sent from Bonsai 7.1.1.1
I am also going thru the same senerial a you... if you find a "fix" for this will you please reply....like wise from me. I have even tried putting th e epic in "DL" mode. But odin does not acknowlege my phone. Hit me up . Thnx.
Sent from my SPH-D700 using XDA App
Get a better usb cable radioshack has gold tip usb cables they always work. Or go too verizon and buy the usb cable for the droid pro
Top Nurse said:
Try the Bonsai MasterKey Unlocker, you will like it better than the stock CWM 3.0.2.5
Sent from Bonsai 7.1.1.1
Click to expand...
Click to collapse
I second this
pacoz said:
I am also going thru the same senerial a you... if you find a "fix" for this will you please reply....like wise from me. I have even tried putting th e epic in "DL" mode. But odin does not acknowlege my phone. Hit me up . Thnx.
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
Before Odin can detect it you must first make sure your computer can detect your phone. That way you'll know if the drivers work fine. If it does then get a new USB cable to connect it while using odin. I got a rocketfish usb cable and it works better than the samsung one...or any usb cable such as a blackberry's works fine.
hooover said:
I have tried all ports on my PC, no I haven't tried to use another PC though.
I just Rooted my friends brand new epic 10 days ago. I just can't figure out how to make my device connect as itself instead of "unknown"
Click to expand...
Click to collapse
When trying to root make sure you aren't using a stock samsung usb cable. Some have been successful using them while rooting but for most it sucks. Are you enabling usb debugging?
I am having the same problem. Gingerbreak failed to run with the same error, and no amount of different cable or port (tried three of each) will avoid the phone not connected message when attempting one click root. I'd love to hear ideas to resolve either of these or other rooting options.
Update - tried the Bonsai unlocker mentioned in this thread, and tried the one click method on a second machine to which I had never connected my device. In all cases, got a phone connection failure. And yes, I have enabled USB debugging, and when I disable it, I am able to mount the phone just fine and see the external memory card, so there's nothing wrong with the USB port or cable. I have a relatively new replacement phone that came preloaded with Froyo. Maybe something has been done to newer devices to disable this ability? Can't imagine what else could be wrong.
thanks,
-- robert
rmingee said:
I am having the same problem. Gingerbreak failed to run with the same error, and no amount of different cable or port (tried three of each) will avoid the phone not connected message when attempting one click root. I'd love to hear ideas to resolve either of these or other rooting options.
Update - tried the Bonsai unlocker mentioned in this thread, and tried the one click method on a second machine to which I had never connected my device. In all cases, got a phone connection failure. And yes, I have enabled USB debugging, and when I disable it, I am able to mount the phone just fine and see the external memory card, so there's nothing wrong with the USB port or cable. I have a relatively new replacement phone that came preloaded with Froyo. Maybe something has been done to newer devices to disable this ability? Can't imagine what else could be wrong.
thanks,
-- robert
Click to expand...
Click to collapse
My bad - apparently I didn't have the right drivers installed. I assumed since I could connect in USB mode without debugging I had the right drivers, but apparently not. Sorry to bother. In case anyone else runs into this, I apparently can't post a URL to help you, so go look for a post on the Epic "All Things Root" forum on Android Forums,
It appears I am successfully rooted after having to reboot the phone once after a failure the first time I ran. Woohoo! Now I can do a true full backup.
-- robert
The only way I could get mine to work (I would get the same errors using gingerbreak) I restored the phone to factory settings using the samsung recovery mode. Press power volume down and camera button. Your volume buttons are used to highlight the text and the home key is used to select. Wipe cache 3 times, and wipe the dalvick (spelled wrong) 3 times, then reset phone back to factory settings through here. Remember you will lose everything so back up your apps using AppBrain. I ran GingerBreak again and it worked perfectly. I would also get the same errors when trying to odin. Its been that way everysince I updated to 2.2. By the way I am EC05, did that before I updated because I was running midNight Rom.
Sent from my SPH-D700 using XDA App

SGN won't mount

After solving this problem I got a new one. My SGN won't mount even though I have USB debugging on. Windows both 64bit and 32bit won't recognize it. I try to install/reinstall the drivers but I can't since the phone won't mount. I haven't found any similar problems to this for SGN. Any suggestions/directions?
Thanks in advance.
p.s. I started a new thread since this is a different problem and probably not connected to the previous. I hope that's ok.
aventinus said:
After solving this problem I got a new one. My SGN won't mount even though I have USB debugging on. Windows both 64bit and 32bit won't recognize it. I try to install/reinstall the drivers but I can't since the phone won't mount. I haven't found any similar problems to this for SGN. Any suggestions/directions?
Thanks in advance.
p.s. I started a new thread since this is a different problem and probably not connected to the previous. I hope that's ok.
Click to expand...
Click to collapse
Just starting with the basics here. But have you tried a different USB port? If it's a desktop, the ones in the back (directly connected to the motherboard) are usually your best bet.
Second, are you using the stock cable? I've had problems with a few phones I've worked on that didn't like communicating with non factory cable.
ctyonthehil said:
Just starting with the basics here. But have you tried a different USB port? If it's a desktop, the ones in the back (directly connected to the motherboard) are usually your best bet.
Second, are you using the stock cable? I've had problems with a few phones I've worked on that didn't like communicating with non factory cable.
Click to expand...
Click to collapse
I have tested every usb port both in my PC and laptop. I have used two different cables and I tried both Windows and Linux (Ubuntu). The cables are fine, my HTC Desire connects just fine. The phones charges but not connecting and this happened an hour ago after solving the previous problem I mentioned it the first post. So I'm 99% sure that the problem is about the device, not the PC/Laptop.
Read the connected thread to get the history of what happened. After returning to stock ICS I got the message for the JB update. Updated and now the phone works fine except the USB debugging and the fact that I don't have CWM atm. I can't install it either because I need to mount the phone. :/
Thanks for the quick reply though.
EDIT: Forgot to mention that the device when connected does nothing, doesn't matter if I have USB debugging on or off.
aventinus said:
I have tested every usb port both in my PC and laptop. I have used two different cables and I tried both Windows and Linux (Ubuntu). The cables are fine, my HTC Desire connects just fine. The phones charges but not connecting and this happened an hour ago after solving the previous problem I mentioned it the first post. So I'm 99% sure that the problem is about the device, not the PC/Laptop.
Read the connected thread to get the history of what happened. After returning to stock ICS I got the message for the JB update. Updated and now the phone works fine except the USB debugging and the fact that I don't have CWM atm. I can't install it either because I need to mount the phone. :/
Thanks for the quick reply though.
EDIT: Forgot to mention that the device when connected does nothing, doesn't matter if I have USB debugging on or off.
Click to expand...
Click to collapse
Just out of curiosity are you using a legal with fast charge turn on because you can't mount the phone and use fast charge. If so turn it off and try again.
Sent via moon rays...
I had a similar problem and had to go buy a data microUSB to USB cable from RadioShack, instead of using the cable that connects to a charger.
Sent from my Galaxy Nexus
aventinus said:
Read the connected thread to get the history of what happened. After returning to stock ICS I got the message for the JB update. Updated and now the phone works fine except the USB debugging and the fact that I don't have CWM atm. I can't install it either because I need to mount the phone. :/
Click to expand...
Click to collapse
You can install ROM Manager from the app store and flash CMW Recovery from there.
---------- Post added at 09:01 AM ---------- Previous post was at 08:54 AM ----------
netbuzz said:
You can install ROM Manager from the app store and flash CMW Recovery from there.[/QUOT
I said "app store", wtf! I never even owned an iphone, lol. Here's the link to what you need: https://play.google.com/store/apps/...xLDMsImNvbS5rb3VzaGlrZHV0dGEucm9tbWFuYWdlciJd
Once installed, go to the app, the top option will flash CMW Recovery to your phone.
Click to expand...
Click to collapse
aventinus said:
I have tested every usb port both in my PC and laptop. I have used two different cables and I tried both Windows and Linux (Ubuntu). The cables are fine, my HTC Desire connects just fine. The phones charges but not connecting and this happened an hour ago after solving the previous problem I mentioned it the first post. So I'm 99% sure that the problem is about the device, not the PC/Laptop.
Read the connected thread to get the history of what happened. After returning to stock ICS I got the message for the JB update. Updated and now the phone works fine except the USB debugging and the fact that I don't have CWM atm. I can't install it either because I need to mount the phone. :/
Thanks for the quick reply though.
EDIT: Forgot to mention that the device when connected does nothing, doesn't matter if I have USB debugging on or off.
Click to expand...
Click to collapse
No problem.
I was unable to mount with my Razr after I factory wiped to sell it a few weeks back. I wanted to make sure my SD ext had been wiped with the reset, but it wouldn't mount. Performed another factory reset and that solved the problem. That was with stock OTA ICS though.
However, I'm not sure that would help you much in this case since it looks like you did a clean install.
Sent from my Galaxy Nexus using xda premium
I've been having some trouble with this too. My phone does connect and "mount" (that's not exactly what happens, since it uses MTP rather than USB Mass Storage), but it always takes a while. The phone device shows up immediately, but the actual storage (shown under the phone device) always takes a minute or so to show up. It works just fine after that, but it's still pretty annoying to have to wait. I don't think I had this behavior before JB.
RoadHazard said:
I've been having some trouble with this too. My phone does connect and "mount" (that's not exactly what happens, since it uses MTP rather than USB Mass Storage), but it always takes a while. The phone device shows up immediately, but the actual storage (shown under the phone device) always takes a minute or so to show up. It works just fine after that, but it's still pretty annoying to have to wait. I don't think I had this behavior before JB.
Click to expand...
Click to collapse
Mine does that too but what I've noticed is that if I have a screen lock/pin set that I have to unlock it first before it will show up
slickrickstyles said:
Mine does that too but what I've noticed is that if I have a screen lock/pin set that I have to unlock it first before it will show up
Click to expand...
Click to collapse
Oh, you're right! Just checked to make sure, and that's exactly what's going on. The internal storage shows up the second I unlock the phone, and if it's already unlocked when I connect it the storage shows up immediately. Guess I've always unlocked the phone after a while when it hasn't seemed to be working in the past, to check that it's indeed connected using MTP, but just haven't realized that unlocking it is what makes it show up. But that actually makes perfect sense, of course - you wouldn't want anyone to be able to access the files on a locked phone by just connecting it to a computer.
hungmung said:
Just out of curiosity are you using a legal with fast charge turn on because you can't mount the phone and use fast charge. If so turn it off and try again.
Sent via moon rays...
Click to expand...
Click to collapse
+1. Fast Charge could be enabled by your kernel. If you use the Franco update app or Trinity kernel control you should check that.

USB connectivity issues

ATT Galaxy S3
SGH-i747m
4.0.4
kyanROM 1.3
I am currently unable to connect my phone to a PC or MAC using the usb cable. I have tried just about everything I can think of with no luck.
what I have tried so far is:
restarting my computer and phone
different computers mac and pc.
different usb cable
uninstalling and reinstalling samsung drivers from PC
tried switching from mtp, to ptp, to adb, using phoneutility (*#7284#)
pulled battery
wiped cache partition
fixed permissions
I even booted the phone into download mode and connected to odin.
I see nothing.
any ideas? I am at a loss. I cant find any info or similar case.
edit: i also tried downloading kies and using the connection troubleshooting utility.. no luck
usb debugging is on but tried with it off as well.
I've been having the same issue on my Win7 home premium.
The phone is charging but can't see folders.
It works on OSX as a Camera though.Click on "Connected as a media device" from the pulldown menu and select "Camera", youll also need a program on OSX. Go to
androidDOTcom/filetransfer/ (i'm under 10 posts so probably can't post links)
rallysquirrel said:
I've been having the same issue on my Win7 home premium.
The phone is charging but can't see folders.
It works on OSX as a Camera though.Click on "Connected as a media device" from the pulldown menu and select "Camera", youll also need a program on OSX. Go to
androidDOTcom/filetransfer/ (i'm under 10 posts so probably can't post links)
Click to expand...
Click to collapse
Part of the problem is I am never getting the "connected as media device" message.
the phone only charges when connected to a computer...mac or pc
Try using a different usb cable. Something pretty short. I've had many a cables stop working. Also try a different USB port on the computer.
rallysquirrel said:
Try using a different usb cable. Something pretty short. I've had many a cables stop working. Also try a different USB port on the computer.
Click to expand...
Click to collapse
I have tried about 4 different usb cables on 3 different computers.
2 pc one mac
some of these cables I know for a fact were working at one point.
I am thinking it is my phones hardware at this point.
lakser said:
ATT Galaxy S3
SGH-i747m
4.0.4
kyanROM 1.3
I am currently unable to connect my phone to a PC or MAC using the usb cable. I have tried just about everything I can think of with no luck.
what I have tried so far is:
restarting my computer and phone
different computers mac and pc.
different usb cable
uninstalling and reinstalling samsung drivers from PC
tried switching from mtp, to ptp, to adb, using phoneutility (*#7284#)
pulled battery
wiped cache partition
fixed permissions
I even booted the phone into download mode and connected to odin.
I see nothing.
any ideas? I am at a loss. I cant find any info or similar case.
edit: i also tried downloading kies and using the connection troubleshooting utility.. no luck
usb debugging is on but tried with it off as well.
Click to expand...
Click to collapse
did this problem started since you flashed Kyan rom 1.3 cause I had the same problem a few weeks ago and I recently flashed the latest CM10 rom and everything works fine now. Does your phone charge when you plug it?.
My phone charges when I plug it in.
I can't be sure if this only happend after I flashed kyanROM 1.3.
That is definitely something I did since the last time it was pluged into a computer.
Maybe ill just flash cm10.
Sent from my SGH-I747M using xda app-developers app
lakser said:
My phone charges when I plug it in.
I can't be sure if this only happend after I flashed kyanROM 1.3.
That is definitely something I did since the last time it was pluged into a computer.
Maybe ill just flash cm10.
Sent from my SGH-I747M using xda app-developers app
Click to expand...
Click to collapse
it looks like a driver issue to me! do you Have the snapdragon toolkit install on your computer? If not you can find it ther: http://forum.xda-developers.com/showthread.php?t=1746665
try the first step uninstall your driver and then install them using the toolkit
If you are using your front usb port try switching to your back usb port sometimes devices don't like the front usb port
lakser said:
Part of the problem is I am never getting the "connected as media device" message.
Click to expand...
Click to collapse
Sounds like it may indeed be a problem with the phone's hardware. You might want to try taking it into the store to see if they can reproduce.
i re-flashed my phone using an old backup from when i knew usb connectivity was working,
still not working.
Brought the phone to an ATT device support center while on stock rooted rom.
They didn't realize the phone was rooted and they couldn't re-flash my phone without usb connectivity so I got it replace.
I am going to run stock rom for a bit... maybe until the official jelly bean release.
then maybe ill go back to Kyanrom or cm10... any suggestions?
Ilso I am not sure what created my usb issue.
I think it was my regular use of an old iPad power brick.
I am going to only use the stock charger from now on and hope that problem doesn't come back.
lakser said:
I have tried about 4 different usb cables on 3 different computers.
2 pc one mac
some of these cables I know for a fact were working at one point.
I am thinking it is my phones hardware at this point.
Click to expand...
Click to collapse
Had the same problem, but my work machine has never once gave me a problem, the one at home does this exact same thing, it maybe a phone hardware problem if you see it doing it on another machine, but I dunno, only reason I haven't fixed the home issue is, I do NOT want to re-install win7, my linux box see's it perfect every time also. I read somewhere in a forum, that it is a samung/microsoft driver bug. It is stored in the registry somewhere, what I saw was I had it working perfectly, then I plugged in my MyTouch to push a stock rom onto it, and then the next time I went to plug in the SG3 the problem started. Windows acts real stupid when you continuously keep plugging in different devices all the time. But then again, you said you tried it on a mac. Humm! Again, this is my opinion only.
same problem i have with no solution need help also please
same problem i have without any solution i need help please
Had the same problem, but with a brand new SGS3 with the stock ROM and cable. Plugged in my Nexus 7 cable instead and that works for some reason. Will bother best buy about it I guess.
got the same issue. tried to sync some files over from the gs3 to my laptop and it only charges the phone, does not recognize it . tried several cables and tried on my desktop, nothing. now im in search cuz this kinda sucks. i flashed CM10 ROM2 and it stopped working for me after that, tried restoring back to rooted stock TW but nothing still. still looking for a fix.
One thing I noticed is that all the computers where I'm having issues are running win7. One win7 home premium and the other win7 pro.
In the office I have XP pro and it recognizes the phone with no problems.

[Q] Epic 4G (D700), ODIN and "Unknown Device"

Okay i have seen similar posts around, and I apologize if this bothers anyone but when I post a thread asking for help, its because I've tried most solutions and have gotten nowhere. I recently bought one.of.these devices and I have to say for an old 1GHz device, its pretty darn smooth! (Got it for my girl who broke her phone. Cost $20 MINT screen, and some scuffs.on the trim believe it or not, fully functional, clean ESN)
I love for all devices in the house to be rooted and off that dreaded Gingerbread android. I have been stuck since i got it trying to use ODIN to flash CWM, and root it to flash a JB based rom. Problem is i installed the drivers, got the ODIN version required, have the CWM tar file, etc, the phone gets detected while on in ADB, normal file transfer way and so on. BUT Download Mode? Nope, i get the dreaded "Unknown Device" issue.
Now as I always read before annoying others, I read that switching the USB cable helps. I've tried 8 USB cables, and no go. 2 Samsungs (i read those are #1 NO GOs), 3 LG cables (device doesnt appear at all), and 3 non brand. No good.
I know Mobile Odin wont work, I rooted it using Framaroot.apk for now, but I need CWM for the rom flashing part.
So now that its 2013, is there really no other way other than ODIN? I tried using ROM Manager, it flashes but doesnt do a thing except boot into stock recovery (miracle no bricks or bootlooping). If I had Linux on my PC, will it get detected or its just the darn cable?
OR is there a specific USB cable brand I should go for that is guaranteed to work? I dont mind buying it just have been waiting to make sure.
Any help or advice is greatly appreciated.
Most people recommend using a BlackBerry cable
Sent from my SPH-D700 using Tapatalk 2
jeffreyjicha said:
Most people recommend using a BlackBerry cable
Sent from my SPH-D700 using Tapatalk 2
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Click to collapse
Thank GOSH I read your response in time! I am currently at BestBuy and was going to buy a totally different brand USB. Hopefully they have them here.
Crossvxm said:
Thank GOSH I read your response in time! I am currently at BestBuy and was going to buy a totally different brand USB. Hopefully they have them here.
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Click to collapse
I use this cable and have had zero issues. http://www.monoprice.com/products/p...=10303&cs_id=1030307&p_id=5458&seq=1&format=2
Well there's good news and bad.
Got an official BlackBerry USB cable.
Bad is the device is STILL not recognized.
The drivers have been properly installed, there is no updating the drivers manually, effing Windows won't let me. What the hell can I do now?
If only Mobile Odin worked, or there were other methods, I wouldn't be going thru this mess...
Like where did I go wrong?
I would swap out Windows to Linux, but I don't see how that will get the device detected.
Matter of fact I was trying to install a Linux based OS from my flash drivd, and it corrupted it. Theres 8gb Ill never see again...
Any other ideas? Will Linux pick up the device?
EDIT: This USB unlike the others BRIEFLY detects it as a USB Device, then goes back to unknown when I uninstall it thru Device Manager
Crossvxm said:
Well there's good news and bad.
Got an official BlackBerry USB cable.
Bad is the device is STILL not recognized.
The drivers have been properly installed, there is no updating the drivers manually, effing Windows won't let me. What the hell can I do now?
If only Mobile Odin worked, or there were other methods, I wouldn't be going thru this mess...
Like where did I go wrong?
I would swap out Windows to Linux, but I don't see how that will get the device detected.
Matter of fact I was trying to install a Linux based OS from my flash drivd, and it corrupted it. Theres 8gb Ill never see again...
Any other ideas? Will Linux pick up the device?
EDIT: This USB unlike the others BRIEFLY detects it as a USB Device, then goes back to unknown when I uninstall it thru Device Manager
Click to expand...
Click to collapse
Are you plugging into a port directly on the motherboard? (IE: A port on the back of the machine.) Using an emulated port or hub can cause this at times.
FYI, there are 2 drivers. One is for when the phone is fully booted in Android. The other is the driver when in download mode. Have you tried using another machine?
Sent from my Nexus 7 using Tapatalk 2
I think your issue is driver related. I had similiar issues and updated the wiki with the drivers that ended up working for me.
Sent from my SPH-D700 using xda app-developers app

Help please!

So I have the Tmobile variant of the S3 and I have tried everything and spent countless hours trying to fix my problem. My phone will not connect to my computer after I tried with different cables and going through the phone utilities. I also did what other forums said and I had no luck. The binary count is at 10 because I tried to root this phone long time ago and I was unsuccessful. The device is not rooted because I checked if I had root access. The phone will only charge when I connect it to the computer and I need it to update to the stock 4.3 from Tmobile using odin. Any help??
rrravipatel said:
So I have the Tmobile variant of the S3 and I have tried everything and spent countless hours trying to fix my problem. My phone will not connect to my computer after I tried with different cables and going through the phone utilities. I also did what other forums said and I had no luck. The binary count is at 10 because I tried to root this phone long time ago and I was unsuccessful. The device is not rooted because I checked if I had root access. The phone will only charge when I connect it to the computer and I need it to update to the stock 4.3 from Tmobile using odin. Any help??
Click to expand...
Click to collapse
Are you using cables bought with chargers? Or are you using quality "Data Cables"? Also, try different USB ports on the computer. Uninstall and reinstall drivers from Device Manager. If it will charge, but not transfer data, it sounds to me that its either a cable issue, or a driver issue. (Could be a bad port on the phone as well, but this is less likely)
DocHoliday77 said:
Are you using cables bought with chargers? Or are you using quality "Data Cables"? Also, try different USB ports on the computer. Uninstall and reinstall drivers from Device Manager. If it will charge, but not transfer data, it sounds to me that its either a cable issue, or a driver issue. (Could be a bad port on the phone as well, but this is less likely)
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Click to collapse
Yeah I tried all of that and I still had no luck
If you are stock, unrooted, can't you just use the software update in settings > about device?
When connected to the computer, what does it say in device manager?
Can you try on a different computer? If it also does not work on another computer, it may be more likely that there is a problem with the port on your phone.
rrravipatel said:
Yeah I tried all of that and I still had no luck
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Click to collapse
I would try downloading the drivers from the Samsung website. It doesn't really sound like it would be a problem with the phone. Also try switching between MTP and PTP and waiting a couple of minutes in between to see if the computer installs the phone correctly.
You can get drivers from my Sig if you want to try several different versions. Just make sure you uninstall through device manager.
Hi
I recommend you try re installing your cell phones drivers on your computer or flashing your ROM correctly. Try updating the device manually.
DocHoliday77 said:
If you are stock, unrooted, can't you just use the software update in settings > about device?
When connected to the computer, what does it say in device manager?
Can you try on a different computer? If it also does not work on another computer, it may be more likely that there is a problem with the port on your phone.
Click to expand...
Click to collapse
I tried to do all that with the drivers but the phone will not connect regardless.
Sounds like its either cables or usb ports then. See if you cant get a hold of an actual data cable, preferably a samsung replacement. Then try that on every usb port on the computer.
And for the drivers, are you uninstalling them through device manager before trying a different version? In my driver repo at least try the oldest and the 2nd and 3rd from the newest if you haven't already.
If none of the above works you may need to consider either reformatting and reinstalling Windows, or try to do this on a friend ir family members computer.

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