Database Users

[Q] Can't mount USB storage/SD card in OSX

I am having a huge problem mounting my Epic 4G to my Mac. When I select Mount USB, nothing happens. I have read several posts about Galaxy S phones having the same problem, they all say to have USB Debugging turned on, but mine is on and still can't mount.
Also, another huge problem. I connect my phone, then I use adb to access the sd card, but I can only use adb for a short period of time, then it disconnects itself, then I try to run adb again but it does not recognize it. I have to unplug the phone, then plug it again.
Does anybody have any idea why this is happening or how to fix it?
Note: I can do everything perfectly fine with my Sprint Hero
Thanks

JGeZau said:
I am having a huge problem mounting my Epic 4G to my Mac. When I select Mount USB, nothing happens. I have read several posts about Galaxy S phones having the same problem, they all say to have USB Debugging turned on, but mine is on and still can't mount.
Also, another huge problem. I connect my phone, then I use adb to access the sd card, but I can only use adb for a short period of time, then it disconnects itself, then I try to run adb again but it does not recognize it. I have to unplug the phone, then plug it again.
Does anybody have any idea why this is happening or how to fix it?
Note: I can do everything perfectly fine with my Sprint Hero
Thanks
Click to expand...
Click to collapse
I've successfully mounted my SD card on OSX. I have debugging turned off. If it won't mount, try a different slot, if that doesn't work, try rebooting the phone. It will work.

JGeZau said:
I am having a huge problem mounting my Epic 4G to my Mac. When I select Mount USB, nothing happens. I have read several posts about Galaxy S phones having the same problem, they all say to have USB Debugging turned on, but mine is on and still can't mount.
Also, another huge problem. I connect my phone, then I use adb to access the sd card, but I can only use adb for a short period of time, then it disconnects itself, then I try to run adb again but it does not recognize it. I have to unplug the phone, then plug it again.
Does anybody have any idea why this is happening or how to fix it?
Note: I can do everything perfectly fine with my Sprint Hero
Thanks
Click to expand...
Click to collapse
Dude, welcome to the club. Since i got my phone i have not successfully been able to have it read on my Mac Mini. Tried different cables and different ports. Some say get a powered USB hub but i'm not in the mood to clutter my puny desk space.
For now i use an app called Websharing to transfer stuff via WiFi. It's a pain sometimes but that's how i get by for now.

I don't have any problem with 10.5 or .6
I can use either regular or debug. Sometimes rebooting the phone and/or the computer helps. It could be a crappy cable. I don't think the supplied one is very good. The one I use with no problems is the overpriced 3 footer that the corporate sprint stores have. I think the cables that came with the epic, moment, and evo were el cheapo. I had a problem that you are describing with a stock supplied cable. I figured out that the micro usb end wasn't making solid contact with the phone. If I would move the cable, it would disconnect. Changing to a real micro usb cable helped me. It could be the usb port is flaky or the usb plug is intermittent. If you are using vmware fusion or bootcamp or dual boot, see if it drops connection in a different os.

No luck under Windows7 (running with Parallels Desktop) either. I'll try buying a new USB cable and see if that works ... Will try Websharing too.
Thanks

I am able to see and access the SD card at work after installing Samsumg USB Drivers under Windows XP, however I am not able to use adb to access the phone ... ahh, this is driving me crazy, I need to root the phone and install a custom rom ... >_<

JGeZau said:
I am able to see and access the SD card at work after installing Samsumg USB Drivers under Windows XP, however I am not able to use adb to access the phone ... ahh, this is driving me crazy, I need to root the phone and install a custom rom ... >_<
Click to expand...
Click to collapse
Did you put your phone into debug mode?
I found that trying different USB slots on the PC, it will eventually work. When you plug it in the first time, it will install some needed drivers ABD etc, if you unplug the phone and plug it back into the same USB slot, it will install the last remaining drivers and you should now be able to see the phone.
Samsungs drivers are flaky at best. It took me a good hour to get it working for me so I could root my phone.

blazinazn said:
Did you put your phone into debug mode?
I found that trying different USB slots on the PC, it will eventually work. When you plug it in the first time, it will install some needed drivers ABD etc, if you unplug the phone and plug it back into the same USB slot, it will install the last remaining drivers and you should now be able to see the phone.
Samsungs drivers are flaky at best. It took me a good hour to get it working for me so I could root my phone.
Click to expand...
Click to collapse
That worked, turning on USB debugging and switching to another USB slot. But, this is at work under WinXP. Now I need to make it work under OSX at home.
I'll try Ubuntu when I get home and see if that works...
Thanks

JGeZau said:
That worked, turning on USB debugging and switching to another USB slot. But, this is at work under WinXP. Now I need to make it work under OSX at home.
I'll try Ubuntu when I get home and see if that works...
Thanks
Click to expand...
Click to collapse
I know some people successfully installed Clockwork via Mac but I haven't seen anything about root. Instructions might be the same, files are obviously different, maybe it'll help you:
http://forum.xda-developers.com/showpost.php?p=8163186&postcount=87

I still can't conect to my Mac. Already bought a new cable and did everything I could...I'm getting mad
Sent from my SPH-D700 using Tapatalk

help me too please!!!
i my self having the same issues but on my windows xp desktop computer i never had this problem with a droid i always just plug it in the usb an my sd card pop up on the screen but on this epic 4g my god it doesn't make a sound on the computer or show any thing all it do is charging my phone i even mount it like i always on my droid can some one please tell me whats the issue i have alot of apk files i want to put in my sd card i need to get set cpu up an running an other roms on my epic 4g thanks for looking help.

temporary fix
This topic has been discussed at another tread.... but anyway, The Macs (current generation only) do not give you enough energy at the USB to power the phone into connecting the memory card. Nor even enough to recognize the phone for more than a few seconds. You can get around it, temporarily, by connecting through a powered USB port. Tetheris still doen's work, but at least you can mount your sd card. It's a software issue... if you're running Windows on the mac machine, it'll connect and mount fine. So, ask Mac for a fix.

Wellington Amaral said:
This topic has been discussed at another tread.... but anyway, The Macs (current generation only) do not give you enough energy at the USB to power the phone into connecting the memory card. Nor even enough to recognize the phone for more than a few seconds. You can get around it, temporarily, by connecting through a powered USB port. Tetheris still doen's work, but at least you can mount your sd card. It's a software issue... if you're running Windows on the mac machine, it'll connect and mount fine. So, ask Mac for a fix.
Click to expand...
Click to collapse
Yes..thanks. That did it for me. The only thing I hadn't tried was plugging it into my powered usb hub...boom it works.

Worked for me too... can't f'in believe it.

Windows 7 64 Bit Enterprise USB Problems

I have tried just about everything to get my Xoom to work with my 64bit Windows 7 system, but the various steps do not work. What is even more odd is that I have a laptop with windows 7 64bit enterprise that works perfectly with the Xoom.
So here are the symptoms:
1) When I connect the Xoom without debugging on, it tries to install a driver, but fails with a message about MTP drive failure.
2) When I turn debugging on, it installs a driver and tells me that the Xoom installed, but then my computer goes wonky. I can't open "My Computer", it like Windows Explorer freezes up. As soon as I disconnect the Xoom, my desktop works correctly again and I can go into "My Computer".
A few times i've gotten into "My Computer" after the Xoom installed, but when I double click on the Xoom icon it just times out.
The only difference I can think of between this PC and my laptop is that in the past I've connected my Droid X to this PC, and used those drivers. I'm not sure if it is some sort of issue because of the X or what. I've installed, uninstalled, cleaned, restarted, etc... with the Motorola drivers.
Its driving me nuts. Has nobody else had this problem?

Did you try different USB ports on your computer? I was kind of experiencing the same thing. I'm also running Windows 7 Enterprise x64. My explorer window would freeze up when I tried to transfer data from my PC to the Xoom. While frozen, switching from/to normal/debugging mode would unfreeze things, until I tried copying again.
My problem was resolved when I connected my Xoom to another USB port on my PC, one that was integrated with the motherboard. Previously, I was plugging it into one of the front USB ports.
So my suggestion is to try a different USB port, preferably one that's on the back of your PC.

i ran into the same issue as well.
this was fixed by changing to a different usb cable, and inserting it into a different port.
if you're connecting it to the front of your computer USB connector, try connecting via back of your desktop computer.
this worked for me.

Like another poster has suggested, the usb ports on the front of the base unit or ports on a usb hub might not be powerful enough to run the Xoom. I've had the same thing with external hard drives.
Sent from my Desire HD using XDA App

I've successfully connected my xoom to 3 Win x64 Enterprise boxes.
If I had to guess, I'd say that your front USB ports are either failing or under powered. I assume that you've tried a USB port on the back?
Sent from my Xoom using XDA Premium App

W7 PC won't see rooted NC anymore

I rooted my NC from 1.1.0 using autonooter awhile ago and it works pretty well in general. I used to be able to hook it up to my home PC (w7) and my work PC (XP) with no problems. ADB worked (usually), the drives showed up, etc.
Everything still works on the work PC, and another W7 PC I tried it on.
Now, for some reason, neither the NC nor its SD card show up on my home PC when I plug it in! The NC shows the normal "USB Mode" screen when I plug it in, and my PC makes the USB Ding sound. But no new drives show up.
The only thing I can think of that changed is around the time it stopped working, I replaced my old USB Card reader with a new one (old one didn't work with SDHC). I also renamed some drive letters to reorganize them, since the card reader always shows 4 drive letters in windows.
I don't see the USB controller entry for the NC that I used to see in Device Manager either.

Check for NookcolorUMS app

I was having some bizarre connection issues with my PC, too, and they seem to have been corrected (at least they haven't recurred) by using a USB extension cable. It makes no sense, and I didn't do it to attempt a fix, but just noticed that the issues seemed worst when plugging into the top-side 'convenience' USB ports, and had an extra extension cable sitting around, so I plugged that into a rear port to make access less awkward. Since then, the PC consistently mounts everything just like it should.
I'm still using the NC's data cable, just plugging it into a maybe 1' extension cable rather than directly in the slot.

my XP based computer won't see the rooted NC either, however I will have to try using a port on the motherboard as opposed to one of the front mounts and see if that does the trick. I just kinda gave up on it as I didn't really need it too bad (I only use my nook for email, web browsing, and to control my DVR).

Well I unrooted my NC as I had planned anyway to upgrade to 1.2, but the problem hasn't gone away.
I tried plugging into an extension cable I have that goes directly to a MoBo rear port, but no change.
I can't run the nookcolorUMS now that I'm unrooted. Maybe I'll try it when I re-root eventually.
The thing is, it works on every other computer, so I can't figure out why it would stop working on just this one. It seems like it must be a windows issue, but I'll be damned if I can figure out what it is.

I don't bother with usb
USB connectivity is so unreliable that I don't even bother with it.
To move files around I use File Expert/network to access the PC via wireless from the device.
It's easy, reliable, and FAST.

framitz said:
USB connectivity is so unreliable that I don't even bother with it.
To move files around I use File Expert/network to access the PC via wireless from the device.
It's easy, reliable, and FAST.
Click to expand...
Click to collapse
That's a good tip. Unfortunately you have to use USB for certain functions, like manual nooting, or synching with Calibre (I suspect).
Once I'm rooted again I'll probably start using wireless for small stuff, but if I'm moving a gigabyte movie over, I'm not sure how long that will take, or how much battery it will use.

Does anything come up in device manager when you connect it? If so, did you try deleting anything that does come up, disconnect and start over? Worth a shot....

You don't have to guess--if you see a USB device that might be the NC, open properties>details and from the dropdown choose "hardware ids." If the number 2080 is in the id, it's the NC.

Nothing new comes up in device manager when I plug it in. It used to...

I experienced a similar issue and this was what causing it.
1. I have 2 front USB connections (nothing connected to either)
2. External Power USB hub connected to a rear USB slot
On Win 7, whenever I plug-in the NC via USB, I got a device not recognize error. I tried plugging it into different ports and pretty much either got no detection or device not recognize. Here is the kicker, as soon as I plug it into the usb hub, window recognize and mount it right away. This also happen to be true if I remove the usb hub altogether.

Driver Installation Issues

I am trying to install the Samsung Intercept (Virgin Mobile) on my Windows 7 netbook. I could never connect the device before to either WinXP or Win7. I recently factory reset my phone and after installing the drivers on WinXP, the phone showed that it was connected. I mounted the SD card to the computer and it never showed the drive. I unmounted and disconnected and since then it never connected. I keep getting that it's not recognized.
On my Win7 computer, I installed the drivers (had to force Windows to find the driver). Now the computer senses that it's connected, but it says "the device cannot be started". So I'm thinking that my P.O.S. phone can't figure out wtf USB mode is. It showed it once and that's it.
I've tried probably 3 or 4 different drivers and now I can't figure out how to just start clean. I don't even think I need to because the computer driver installed fine (It says Samsung USB Android whatever when it's connected). I tried with USB debugging on and off.

I even tried to make a virtual Windows XP to try it on a fresh install, but VM won't take unknown USB devices.
I uninstalled all my drivers, even the USB hub drivers, rebooted after the uninstall. No luck.
Before I reinstalled the hub I tried to force XP to the drivers (different ones not the same driver over and over) and now its saying "the file does not contain any information about this device". WTF?!
I'm so confused with this stupid driver that I can't take it anymore. I'm now considering reformatting my computer, but it's not worth it just to root a phone. I'd rather put up with my phone needing a battery pull at least once a day than to lose all my files.

caderyn19 said:
I am trying to install the Samsung Intercept (Virgin Mobile) on my Windows 7 netbook. I could never connect the device before to either WinXP or Win7. I recently factory reset my phone and after installing the drivers on WinXP, the phone showed that it was connected. I mounted the SD card to the computer and it never showed the drive. I unmounted and disconnected and since then it never connected. I keep getting that it's not recognized.
On my Win7 computer, I installed the drivers (had to force Windows to find the driver). Now the computer senses that it's connected, but it says "the device cannot be started". So I'm thinking that my P.O.S. phone can't figure out wtf USB mode is. It showed it once and that's it.
I've tried probably 3 or 4 different drivers and now I can't figure out how to just start clean. I don't even think I need to because the computer driver installed fine (It says Samsung USB Android whatever when it's connected). I tried with USB debugging on and off.
Click to expand...
Click to collapse
I had the same issue too.
Have you tried using another USB cable? If you're using the cable that came with the phone it wont work (well sometimes). What you can do is find or buy another Micro USB cable for your intercept. You can buy one off amazon for less than $10. I brought mine from Best buy for $20. It works fantastically.

scream4cheese said:
I had the same issue too.
Have you tried using another USB cable? If you're using the cable that came with the phone it wont work (well sometimes). What you can do is find or buy another Micro USB cable for your intercept. You can buy one off amazon for less than $10. I brought mine from Best buy for $20. It works fantastic.
Click to expand...
Click to collapse
I was seriously considering another cable because I read in some other threads pretty much what you just told me, but I guess I was one of those "on the twelth time it finally connects" type of situations. I connected it last night and it worked. Just need to update my SDK stuff, make sure I have all my info for SuperOneClick, and cross my fingers lol!
Thank you for your advice. If it stops working I'm gettilng a new cable.
[EDIT] and it stopped working... I knew I should've just rooted when I had it connected, but I wanted to back my stuff up. Looks like I'm getting a new cable lol.
Sent from my SPH-M910 using Tapatalk
[EDIT] You were totally right! It's the cable. I got a Belkin for $15 at Target. I plugged it in and immediately Windows 7 Pro 32-bit detected the drivers, the handset, and installed it. Now time for rooting

I know it's been a couple of months, but I'm curious if you've had any other problems with connecting?
I was having the same problem and I had a few cables that I tried with no luck. I also tried my wife's Blackberry cable, which is a thicker cable that claims to be a "DATA" cable...no go.
I probably will just go buy the Belkin one you referred to if you've had no other problems.
Thanks!
-- Sent from my Galaxy Tab using Tapatalk

GreyCelt said:
I know it's been a couple of months, but I'm curious if you've had any other problems with connecting?
I was having the same problem and I had a few cables that I tried with no luck. I also tried my wife's Blackberry cable, which is a thicker cable that claims to be a "DATA" cable...no go.
I probably will just go buy the Belkin one you referred to if you've had no other problems.
Thanks!
-- Sent from my Galaxy Tab using Tapatalk
Click to expand...
Click to collapse
I actually have had no problems (on my Win7 PC) since the install. As for my XP computer, I just gave up on trying to get it to work. Try completely uninstalling every instance of the Samsung programs (I went through my registry *dangerous*) and all things Android and reboot to a fresh power cycle (like with the phone) so Windows can update all its important files reguarding the driver removal. Then install and THEN plugin.
It literally randomly worked for me. I had the drivers installed properly, but the charging cord gave me "bad driver install". I didn't change a thing and plugged in wth the Belkin and was good to go.
Hope you can get it working! I know the anticipation of phone modding, and I love it! Lol!
Sent from my SPH-M910 using Tapatalk

Ditto, ditto and ditto! I have the same thing with my intercept, except I started on win7/64, could not get anything going. Then created an XP VM - over my dead body - no go.
Using the same cable, if I plug in my Captivate, everything comes up.
For you guys, when you bought a different cable, what did you buy? micro-to-micro USB? Or something else?
J

I usually use the cables that came with my HTC phones. Also I have better luck if I reboot the phone prior to connecting it to the PC.

Nexus 7 Not Showing Up In Device Manager

Let me start by stating that I have read through pages of various threads on here & haven't found an answer... Or at least I haven't found an answer in laymen's terms that I can understand. So, if/when offering help, please break it down for me a little. Thank you!!
I just purchased a Nexus 7. When I plug it in to my Windows 7 PC, nothing happens. It doesn't install any device drivers. It doesn't appear anywhere in my device manager. Nothing. After reading several posts, I downloaded drivers from Asus's site, but now I don't know how to install them. I came across this comment from "MrTrackZed" in another thread (one I can't yet post in):
"After you download the driver, unzip/extract its contents. Then you go to your device manager on your PC, and plug in your Nexus. You'll see it with a yellow exclamation point, right click it and select update driver. You can then select this driver manually. Also, if using Wug's root method, make sure you configure the fastboot driver as well. I don't have my PC with me, but I believe its step 6 in the driver install process. Its all very easy, sounds confusing, but its not. Good luck! "
I totally understand that, but what do I do if the device isn't even showing up in the device manager? I've plugged it in to 3 different computers (2 windows 7 & one Windows XP) and it does nothing on any of them. The device does show that it's charging, but nothing else. Please help. This is driving me nuts. Oh, and I've done all of this while having debugging on & off. Same results.
~Clint

U may just have a bad device! I have seen posts similar to this and after a device exchange they have no problems.
The fact that It doesn't register on three different computers means that or a bad cable.
Sent from my Nexus 7 using Tapatalk 2

When you plugin your phone, on your phone, you need to click USB Storage, did you do that?
Another thing to try is to enable Debuging on your phone, and install drivers, to check if device manager can detect it.
We have a package contains the right drivers for your device, you may want to download and try it. We have Nexus 7 users works fine.
http://www.vmlite.com/vaac/
This is for our vmlite vnc server, but it may help you, as it installs USB drivers.

huisinro said:
When you plugin your phone, on your phone, you need to click USB Storage, did you do that?
Another thing to try is to enable Debuging on your phone, and install drivers, to check if device manager can detect it.
We have a package contains the right drivers for your device, you may want to download and try it. We have Nexus 7 users works fine.
This is for our vmlite vnc server, but it may help you, as it installs USB drivers.
Click to expand...
Click to collapse
I did as you suggested & installed both the PC client & downloaded the app from google play. Still nothing... The device works perfectly except for this one issue. It's making me crazy!

can you run this command to debug? (open a command window on Windows)
"c:\program files\vmlite\AndroidAppController\adb.exe" devices
what is the output message?

It just occured to me that some USB cable is charging only, this morning, I got such a cable, there is no USB device showing up in device manager with that USB cable, once I switched to another data cable, it works.
You may want to change to another usb cable to test.

Problem Identified
Okay, so after much research, I think the problem has been identified. The one thing that I've found in common with all the threads that discuss this problem is that we've all, at one point or another, used a USB car charger to charge our N7. I've found that most cheap USB chargers only put out at about 1 amp. The N7 is trying to pull 2 amps. This is causing the USB cable to overheat & damage the USB connector on the N7. Unfortunately, once the damage is done, it's done. Fortunately for me, I purchased my N7 at a local retailer that had a 30 day return policy & they gave me a new N7. It works great & I've ordered a 2.1 amp USB car charger to prevent this from happening in the future.

huisinro said:
It just occured to me that some USB cable is charging only, this morning, I got such a cable, there is no USB device showing up in device manager with that USB cable, once I switched to another data cable, it works.
You may want to change to another usb cable to test.
Click to expand...
Click to collapse
Thank you for the reply, but I am using the OEM N7 USB cable. Plus, I used 3 other cables to no avail. See my previous comment though. I've identified the error.

Sorry for the bump, but are you saying that (under)charging at 1A essentially breaks the N7? Wow. You'd think it would break if you'd feed it 5A or so, not at less than 2!
I think I'm having the same issue now. I can charge, but no debugging for me since my computer doesn't even notice a USB device. Must have happened in my car once when I was trying to charge my phone and my N7 at the same time. (Since then I can't charge any phone at all in the car using that charger.) Let's see if I can find the warranty slip.