Develop Bugs

32 bit windows 7 home, not recognizing epic on a consistent basis

ive had the epic since the day it was released and have had an impossible time getting my computer to recognize it on a consistent basis. i have no idea whats going on. when i first got it i downloaded the samsung drivers and installed them, hooked up my phone and nothing. the computer tried to install drivers but consistently failed. the next day i tried again, did absolutely nothing, and it recognized my phone and i was able to root and everything else. since then its been hit or miss, one day it will recognize it and then it wont for a week, even without doing a god damn thing.
recently i dropped my epic in the snow and it fried the radio, i brought it to sprint and told them the radio just quit working and they gave me a new one. now im having the same problem, i cant get my comp to recognize the phone. i installed the samsung 32 bit drivers and everything, but still nothing. i hook up my phone and it either tries to install more drivers or does nothing at all. I want to root my phone and throw some roms on here, but i cant seem to figure it out. my buddy has a captivate and said he read a post in those forums of some guy having the same problem and a solution but i cant find it. im told its a windows 7 32 bit malfunction of some kind.
sorry for no capitalization/ punctuation and poor grammar but im in a hurry to get to school and i wanted to get this posted before i left.
please help, this is pissing me off.
thanks,
Phillip Traum

Have you tried completely removing the drivers and reloading them?

+1 uninstall/reinstall drivers. Make sure phone is not connected when installing drivers.
Also make sure you have the usb cable unplugged from the pc until you are ready to do something. I found that if you leave the cable plugged into the PC at all times (and unplug/replug at the phone end) it makes it more likely to not detect. Leaving the phone end plugged in and plugging/unplugging the PC end made a world of difference for me.

Reinstall windows. It's almost funny how often that corrects weird driver issues.

Try using the usb cable and phone on another computer and see if it does the same thing. Also try using different usb ports, alot of times the front usb ports are underpowered and will give you issues when you try and mount the phone.

Sounds to me like the cable. IMO the only thing the stock cable is good for is charging on my nightstand. I bought a $2 cable off of eBay that works EVERY time.

I had the same exact problem as you! Just have you tried connecting your phone to one of the USB ports on the back of your computer?

Use the USB ports on the motherboard on the back. Create a new profile for connecting the epic and load the drivers in that Profile. If it fails to recognize, try another port. Make sure you are installing the drivers on the new profile you created through User Accounts and then plugging your phone in. This should fix your problem.

i had the same issue with home premium (also win7) i had to reinstall the drivers before everytime i plugged my phone in.
however, since i put a new rom on it (bonsai 2.0) i havent had this issue.

i have tried uninstalling and reinstalling the drivers numerous times. i rarely ever have the cable plugged in when im not trying to use it to connect to the phone. and my computer only has 2 usb ports on the side of my laptop, so i dont really have many options as far as that is concerned. not sure what else i can do.

Reinstall windows. It is incredibly easy.

+1 for the reinstalling of windows - obnoxious as it may seem. I have a dinky old laptop that I installed Vista on just to do work on my Epic. I can use any cable (stock or my Monoprice.com special) and any port on it to connect to my epic. My Win7 desktop, however, won't to this day recognize it.
Some people have reported success using the drivers that come with PDA.net , too.

Many people are scared of reinstalling windows. They think they'll mess something up. Just backup everything you don't want to lose and you'll be fine. Windows installs, and especially Windows 7 installs are incredibly easy. They basically install themselves. At work, when computers come back in from our stores with problems, I usually delete the junk, copy the hard drive, and reinstall windows. Unless hardware is dying, it damn near always fixes the problem and takes a whole lot less time than trying to troubleshoot some of windows' weird conflicts.
Also, reinstalling windows on a semi-regular basis will get you to build good habits about backing up and organizing your files.

[Q] Cannot install Windows 7 64 bit Drivers

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?

[Q] Windows 7 Doesn't Recognize my Continuum...

So I'm attempting to root the Continuum, but for some reason the phone won't effectively connect to Windows 7. For example, when I hook the phone up to my Samsung i7 laptop, all the phone does is charge. It doesn't even ask me if I would like to use usb storage or anything. The computer also doesn't recognize the device. Any ideas? Thanks!

A couple questions first:
- Did you install the Continuum drivers?
- Does your phone bring up the USB connection in the status bar?
- Does it bring up the Verizon VCast website on connection?

ExNukeSquid said:
A couple questions first:
- Did you install the Continuum drivers?
- Does your phone bring up the USB connection in the status bar?
- Does it bring up the Verizon VCast website on connection?
Click to expand...
Click to collapse
1. I likely did not install the Continuum drivers, and I have no clue where to get them. I'm assuming Samsung's website, but it's a bit hard to figure out and navigate...
2. My phone does not bring up the USB connection in the status bar.
3. When I go to the browser, it brings up the Verizon website with news, etc.
It should probably be stated as well that this phone is not activated. I am using it on wifi only for the time being because I traded it with a friend for another phone.

Alright, so I've figured it out. Strangely enough, I was just using a generic USB to microUSB cable, and I actually needed to use a Samsung cable. Weird, right?

sportsinger75 said:
Alright, so I've figured it out. Strangely enough, I was just using a generic USB to microUSB cable, and I actually needed to use a Samsung cable. Weird, right?
Click to expand...
Click to collapse
So...now that I'm rooted, how in the world do I install a custom rom? I saw that there's a ClockworkMod Recovery out, but what does "Odin" mean? I'm coming from an LG Optimus V and have extensive experience rooting and installing custom roms and recoveries, but I've never heard of that before. Thanks again!

First, we dont have much for custom roms on this phone. The couple we do have contain fairly well written "how-to's" for them.
Second, if you are not sure, do some research and find out as many answers with the vast pool of knowlendge at your fingertips (the interwebs) as you can. There has already been a swarm of questions asked, and I am sure the answers may already be there for you.
I am waiting for the update and Froyo roms to come out before I bother with custom roms, but I am not holding my breath for that. I will probably be on my next Android phone before I will bother. Modding it up with Widgetlocker, ADW Launcher, and some other goodies at the moment to tide me over.

I had this same problem today. USB mass storage wasn't working, adb wasn't working. I wasn't using the samsung cable, but I can't see how that would make a difference, as the cable I was using has worked for literally a couple dozen different phones from different manufacturers - including other samsungs. I had the samsung drivers installed.
The owner claims that only media sync works on his computer as well, and that usb mass storage has never worked. Anyone have any ideas on how to fix this?

i am also getting this problem. as far as i know i am still using the samsung cable, as normal micro-usb cables dont fit in the continuums port. ill look for another one, but this is quite odd. what i have done (all windows 7 64 bit):
drivers uninstalled
drivers installed
lagfix on
lag fix off
factory reset (within adrenalyne's rom)
i am going to try to transfer the stock rom via bluetooth and see if that works
edit: turns out that isnt possible without odi recognizing the device, which it doesnt (not even in download mode). this is very peculiar
some more information: nothing even shows up in device manager. no unknown devices, nothing. the phone charges, but thats it. i might go to the verizon store and see if i can get another cable

My guess is because you are using a 64 bit version of windows..
Sent from my SCH-I400 using XDA App

I use win7 x64 with odin3v1.3 and it always detects.... I have odin on pc screen with files loaded then I pull bat hold the DownVol button and plug in usb
EDIT: I also have 'galaxy s x64 drivers'...I found em on net sumwhere?
Sent from my SCH-I400 using XDA Premium App

jaizero said:
My guess is because you are using a 64 bit version of windows..
Sent from my SCH-I400 using XDA App
Click to expand...
Click to collapse
Why would that matter at all?

The 64bit version of Windows 7 is notorious for not being compatible with a lot of devices. There just arent any 64bit drivers. If you dont understand how to run your software in the proper compatibility mode you will run into problems. I used the x64 version of Win7 for about 12 seconds after I realized my ancient usb optical mouse didnt work lol.
My advice, try running the Samsung driver installer in compatibility mode and see if that doesnt help.

jaizero said:
My advice, try running the Samsung driver installer in compatibility mode and see if that doesnt help.
Click to expand...
Click to collapse
Compatibility mode won't do anything in the case of drivers. I'm not sure what your issue is though as all of my Samsung phones have been picked up fine from within Windows 7 x64. Is the phone picked up on any non-Windows 7 computer? Have you checked in Device Manager to see if it just needs installed?

its the cable. i took mine to the verizon store, they tested it, and gave me a new one for free. works perfectly now

Excellent, problem solved!

So it turns out a factory reset fixed it. Using a moto cable. So that's definitely not the issue. Flashing froyo now. Thanks!

I have encountered that a few times also. Its weird cuz when I plugged the usb into ac charger it almost immediately asks if I want to mount sd for data transfer. 20 mins later I unplug usb from unit and plugit into my win7 pc and nothin? So plugged back into ac unit and it recognize....so I mounted and it didn't know what to do lol. I then plugged back intopc...waited...changed orientation and 'Boom' pc sees it...in fact I change orientation whenever it seems to hang and seems to work....
sent from my XDA phone - its more than a continuum

I should also note that I have never used a samsung cable and every usb micro I've used (moto,kodak,BB,Lg) has fit and worked. But I have noticed some usb related quirks since froyo update like no lock screen after charging till I push home button, inaccurate batt icon (goes from 3/4 to 1/4 in like 10 mins but overall batt life is same as before)...
On an unrelated note I also can't get v6supercharger to work...?
sent from my XDA phone - its more than a continuum

Unrecognized device

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. =]

USB transfer not working

Hey guys, just wondering if anyone had this before:
I am able to charge the devices, but nothing related to USB transfer works...
I am stock, not rooted, with latest version available for the Telus' E973
I've tryed 3 PCs, 2 cables, hard resetted the thing but nothing...
So far, I'm thinking I'd RMA the thing...

Does phone ask about mode when you plug it in?
Also, does the computer make any sound or showing that it's plugged in under computer or device manager?

Sounds like USB cable problem, but if you tried 2 cables the odd it's the problem are really low.
Sent from my Galaxy Nexus using xda premium

Nothing on either the computer nor the device, no changes in the device manager...

Was having same problem.
Redownload/install the ADB drivers or whatever they are, and all other drivers. Worked for me. Mainly the ADB ones.

You mean on a computer or on the device?
I've tried on multiple computer which were working before, and nothing is being "added" when pluging in the device, so it's most likely not a driver issu on the computers.

Maybe you broke the connector? What os does the pc have

Tried with Windows 7 x64 and x86 and Windows XP, same thing on 3 PC's
No reaction either on the PC's or the device.

Definitely broken connector

I'll keep you posted, I'm going to check out with my reseller tonight or mid-day.
So far, I understand that no one had this issue?
Thanks for all the input!

Got there during lunch, it's send out...
Now I'm stuck with a crappy Desire HD...