Develop Bugs

[Q] Issue with USB Mass Storage

Last night I was getting ready to do my first root. Was watching the syndicate video, following along.
One thing I noticed last night, is when I plugged the phone in for mass storage, to copy the files to the sd card, I kept getting these two errors.
First, when installing the drivers after plugging the phone in, I was getting this cdc failed. You can see it in this picture...
http://i11.photobucket.com/albums/a183/lardo5150/cdcabstract.jpg
I also kept getting this "scan to fix" pop up for the M drive (my phone).
When I turned on USB debugging on the phone and plugged it in, it seemed fine, except I could not access the M drive on my computer, I would get this error...
http://i11.photobucket.com/albums/a183/lardo5150/insertdisk.jpg
I did some search and decided to try what another user tried, I formatted the sd card.
I then plugged the phone back in, and did not receive the "scan to fix" errors anymore and could access the SD card with no issues, but I could not access it still while in debugging mode.
Is this by design?
Samsung drivers are installed. Got them straight from the samsung site.

No yiu should be able to play with your sd card wgile in debugging
Did you turn on mass storage after usb debugging?
Sent from my SPH-D710 using xda premium

I couldn't access the mass storage in USB debugging for a little while. It turned out my drivers got slightly corrupted. I could do everything else but that. Went into Control Panel with USB Debugging on and found the driver listed as samsung android in USB in Device Manager and hit update driver and let it get it from Windows Update.

kennyglass123 said:
I couldn't access the mass storage in USB debugging for a little while. It turned out my drivers got slightly corrupted. I could do everything else but that. Went into Control Panel with USB Debugging on and found the driver listed as samsung android in USB in Device Manager and hit update driver and let it get it from Windows Update.
Click to expand...
Click to collapse
I will try that this afternoon.
How about that cdc? Any reason why that is failing?

Same thing.
Says the latest driver is installed.
It never gives me the option of choosing charging, mass storage, tethering like it does when debugging is off.
Any ideas?

Ok, so I found this some other forums.
Seems stupid, but I had no clue.
With my phone, with debugging off, when you connect the USB, it asks you what you want to do.
With debugging turned on, it does not, you have to tell it. Below is what I found....I feel dumb..
"Okay, so if you are freaking out, or can't figure out why your new Epic isn't being recognized by your computer, calm down. Some of you are probably already searching for drivers. Ya I already went through that freak out when I got my Vibrant. Okay, to mount your phone, and have your computer recognize the internal/external memory, do this:
Connect your phone to your computer via USB. Give it a few seconds.
Next, PULL DOWN your notification bar.
Next, tap your finger on "USB CONNECTED"
You then get a message asking if you would like to mount. Tap "mount" confirming you would like to do so.
Enjoy, your computer should now recognize the internal/external memory."

lardo5150 said:
Last night I was getting ready to do my first root. Was watching the syndicate video, following along.
One thing I noticed last night, is when I plugged the phone in for mass storage, to copy the files to the sd card, I kept getting these two errors.
First, when installing the drivers after plugging the phone in, I was getting this cdc failed. You can see it in this picture...
http://i11.photobucket.com/albums/a183/lardo5150/cdcabstract.jpg
I also kept getting this "scan to fix" pop up for the M drive (my phone).
When I turned on USB debugging on the phone and plugged it in, it seemed fine, except I could not access the M drive on my computer, I would get this error...
http://i11.photobucket.com/albums/a183/lardo5150/insertdisk.jpg
I did some search and decided to try what another user tried, I formatted the sd card.
I then plugged the phone back in, and did not receive the "scan to fix" errors anymore and could access the SD card with no issues, but I could not access it still while in debugging mode.
Is this by design?
Samsung drivers are installed. Got them straight from the samsung site.
Click to expand...
Click to collapse
I had the same issue with my epic, try using a different usb cable, the one for the motorola photon resolved all the issues I had with connecting to the computer, I found out thru experience that the stock cable when using windows 7 kept giving me the same error..
Sent from my MB855 using XDA App

Also, I've had success with rebooting both the phone but especially rebooting the computer and plugging the phone back in. Try a different USB port, some folks have 2 SLOW USB ports for mouse and keyboard (mine are in the back lower left...the fast ones are on the right and in front). Most folks have better luck trying rear USB ports (although I don't know why). First, try the computer reboot though...

USB Connected but doesn't show up on my mac

How come the internal storage and the sd card doesn't show up on my mac? I can see that it is recognizing the phone though.
Tried it with windows 7 on parallels too for some reason they don't show up as drives. Can't seem to figure out why.

It's not on by default, you have to go to Settings>Wireless And Networks>USB Utilities>Connect Storage To PC

After you connect your phone to your computer, on your phone, bring down your notifications and click usb and then click connect usb data mode or whatever it's called. I had the same problem until I found out how it worked.

Both above answers don't give the full story. The default connectivity mode for the phone is a media connectivity mode that simplifies the process and allows you to access your data without unmounting the storage, but it's only supported by Windows. Macs can't connect that way.
86apex's information is one correct way to turn on the more typical mode that will then work with your Mac. It's just not that it's not on by default, it's just that the mode that IS on isn't supported by your system.
Megatr0n.'s instructions are only valid if you have USB debugging mode turned on. Otherwise you wouldn't see what he (I'm assuming) is describing. That said, turning on that mode (Settings/Applications/Development/USB debugging) and enabling that menu option would be easier than going through the steps 86apex listed every single time you want to connect.

[Q] Connect as hard drive / Charge only

I have had this phone for only two days now. My previous phone was an EVO. I got my Epic 4G Touch via a trade and there is one thing that I cant figure out... and feel quite silly asking the question.
When I plug the phone into my PC via USB, I do not get an option or prompt to choose whether to connect as a hard drive / charge only / or tether my internet connection like I did on my EVO. It seems that it only allows me to connect in charge only mode. I have been unable to find an option to choose to connect as a hard drive in the settings menu.
Any help with this solution will be greatly appreciated.
Thanks
Robert

Ok, enabling the USB debugging and then unplugging and plugging in the USB fired up those settings, but it did not find drivers for:
CDC Serial or SAMSUNG_Android... I am going to search the forum for that answer.

Settings>Wireless and Networks>USB Utilities. That's how you get to USB mode. But yes debugging mode also works. But once you plug your phone in the mtp mode should connect. You can also access media on PC that way and ur sd card is still accessible thru phone, unless you're actively syncing something then you get the sync screen.
Sent from my SPH-D710 using XDA App

for my phone as soon as i plug it in i get a notification at the top and i pull down the status bar and i can enable usb mass storage from their

Thanks for the reply folks. I had me EVO so long that I forgot about enabling debugging mode. I did that and I finally got the drop down menu to enable me to use the phone as a hard drive.
My issue now is that I cannot seem to get two drivers to install correctly. I read through many posts, both here and ones I found via google, that suggested that I install Kais from Samsung's website to fix the driver issue. I did that, and applied all of the updates to the program that were available, and I am still getting the error saying that those drivers did not install correctly. I can browse the SD card now that Kais Air is installed, but I am still having the driver issue in device manager.
I am not sure where these drivers can be obtained...

OnDutyTactical said:
Thanks for the reply folks. I had me EVO so long that I forgot about enabling debugging mode. I did that and I finally got the drop down menu to enable me to use the phone as a hard drive.
My issue now is that I cannot seem to get two drivers to install correctly. I read through many posts, both here and ones I found via google, that suggested that I install Kais from Samsung's website to fix the driver issue. I did that, and applied all of the updates to the program that were available, and I am still getting the error saying that those drivers did not install correctly. I can browse the SD card now that Kais Air is installed, but I am still having the driver issue in device manager.
I am not sure where these drivers can be obtained...
Click to expand...
Click to collapse
Other than Kies, your pc should install drivers upon connecting phone. I've had this happen before. I uninstalled the drivers I found via google, restarted my pc, reconnected my device and it immediately began downloading proper drivers. I was good to go from then on.
You may wanna try, once device is connected to pc to
-go to start menu
-computer, and see if your device is there

missing hardward ID limited solution

I've read some people are having trouble with GN2 when connecting it to a PC via a USB cable. I've been having that problem as well.
I've found some suggested solutions, but none worked for me:
Code 10 error device manager
Missing Hardward ID fix
I found a partial solution. It's limited in what is solves. This is good for a user who is looking just to be able the phone USB storage so you can transfer files and what not. This does not give access for ADB. This will get rid of the need to plug and unplug the usb cord, or enable or disable USB debugging or whatever else people need to a bunch of times for the phone to finally be recognized by their machines. This works in Windows 7 64bit; I assume 32 bit. Don't know about Windows 8 (if there is the problem)
Basically, uninstall the Samsung USB drivers. Then just reconnect the GN2 to your PC. Let Windows install it's drivers. You'll see failures for Ssmsung and ADB, but still have access. You'll get the same access with and with USB debugging. Below are pics showing the results of driver installation by Windows, and hardware device properties. If you click the picture, you get see a large image of the screen shot.
Without USB debugging
WIth USB debuggind turned on:
Maybe someone with more knowledge can figure out the rest to complete fix the issue. But I assume for most, this should be sufficient.

lovekeiiy said:
I've read some people are having trouble with GN2 when connecting it to a PC via a USB cable. I've been having that problem as well.
I've found some suggested solutions, but none worked for me:
Code 10 error device manager
Missing Hardward ID fix
I found a partial solution. It's limited in what is solves. This is good for a user who is looking just to be able the phone USB storage so you can transfer files and what not. This does not give access for ADB. This will get rid of the need to plug and unplug the usb cord, or enable or disable USB debugging or whatever else people need to a bunch of times for the phone to finally be recognized by their machines. This works in Windows 7 64bit; I assume 32 bit. Don't know about Windows 8 (if there is the problem)
Basically, uninstall the Samsung USB drivers. Then just reconnect the GN2 to your PC. Let Windows install it's drivers. You'll see failures for Ssmsung and ADB, but still have access. You'll get the same access with and with USB debugging. Below are pics showing the results of driver installation by Windows, and hardware device properties. If you click the picture, you get see a large image of the screen shot.
Without USB debugging
WIth USB debuggind turned on:
Maybe someone with more knowledge can figure out the rest to complete fix the issue. But I assume for most, this should be sufficient.
Click to expand...
Click to collapse
Hey....Thanks so much!! It's a good start.
With all of the brilliant developer on these boards, I'm surprised no one has come up with a fix yet. In good time!!!!

I figured most users on here aren't needing to use ADB after rooting, but want to access storage. I tried accessing using ADB, which I have installed on my PC but never use, and it wasn't connecting. I had to look up how to use it. When I asked for listed devices, nothing came up.
If you look at the threads listed, it appears it's a driver issue with Samsungs USB drivers. I figure at some point either Samsung or Microsoft will fix it, more than the developers here. Although, I think they'll probably find a solution faster.

HA! I'm glad I'm not the only one. I've been rebooting my PC to solve the issue. It only happens once in a while. I'll be watching this thread. Thanks

I know this isn't exactly on topic but I've seen this discussed here and other forums as far as "properly" ejecting the Note 2/GS3 from your PC. Some say you just pull the USB, it will not corrupt etc. I just wanted to share that you can eject(windows). Just go to Devices and Printers, you will see SPH-L900 in your list. Right-click and eject. Probably means nothing but figured I'd share for those that feel iffy about just pulling the plug

I just pull my USB. I don't do the whole eject thing. The "having" to do the eject thing basically went out when Windows 7 arrived. I've been doing this method for couple years with Windows 7 for various devices. Never an issue.
And even faster than when you mention, if on WIndows 7, you go to the task bar to the right, there is a triangle that shows all your running background apps. Click that, right click the USB icon. It should be listed. If not, there is a "open devices and printers" which takes to the same place.

[Q] Help! - New to Android, cannot transfer files via USB connections

Hi all...I am new to XDA forum, but have been browsing in the trove of information to help with my problem. At the end I am resorting to posting a new thread to hopefully help me in resolving this problem or provide a good explanation why it does not work.
Problem: I am trying to use the USB cable to transfer files to my SD Card. (I am not sure what reason, but someone has informed me that either Samsung's proprietary software Kies does NOT work, you can only transfer using Samsung KIES Air...which is painfully slow.)
Now here is my situation:
1. I have a Bell Canada - Samsung Galaxy Note-2
2. The Phone has been unlocked and rooted (using Odin)
GOAL:
- I don't care if I need to transfer files to the SD card, and then sort the files out afterwards on the phone.
- Primary goal is to allow me to transfer files (music, mp3, etc.) via USB cable.
Your help is greatly appreciated...in providing some sort of clear cut instructions or directions.
Thank you in advance.
Android Noob User - Daniel :crying:

I know you didn't ask for this, but could you possibly use Airdroid? It has always been reliable for me and honestly it's my best solution for myself because we don't actually have UMS anymore, sigh.

Airdroid Vs. Kies Air
Thanks for the response and recommendation.
So is Airdroid? better or the same as Kies Air?

dckp said:
Thanks for the response and recommendation.
So is Airdroid? better or the same as Kies Air?
Click to expand...
Click to collapse
I've never used Kies so I can't say!
But basically, you download the app from google play and go to web.airdroid.com and you type in the code that you see in the app. From there you can read your phone's text messages and transfer files and do other things via your wifi connection. File transfer on my (good) wifi network is fairly fast (about the same as using a usb cord) and it's good for me because I personally use Ubuntu and Chrome OS, so the USB storage options don't work or don't work well.

usb driver
All you need is go to samsung website and install the usb driver. You should have an option to do this during the kies installation too.
dckp said:
Hi all...I am new to XDA forum, but have been browsing in the trove of information to help with my problem. At the end I am resorting to posting a new thread to hopefully help me in resolving this problem or provide a good explanation why it does not work.
Problem: I am trying to use the USB cable to transfer files to my SD Card. (I am not sure what reason, but someone has informed me that either Samsung's proprietary software Kies does NOT work, you can only transfer using Samsung KIES Air...which is painfully slow.)
Now here is my situation:
1. I have a Bell Canada - Samsung Galaxy Note-2
2. The Phone has been unlocked and rooted (using Odin)
GOAL:
- I don't care if I need to transfer files to the SD card, and then sort the files out afterwards on the phone.
- Primary goal is to allow me to transfer files (music, mp3, etc.) via USB cable.
Your help is greatly appreciated...in providing some sort of clear cut instructions or directions.
Thank you in advance.
Android Noob User - Daniel :crying:
Click to expand...
Click to collapse

Just in case, make sure that MTP is checked in USB computer connection.
*Settings>Storage> Menu button>USB computer connection> check Media device (MTP)*
I know it may seem obvious to some but it does get overlooked sometimes.
Cheers!

ace862 said:
Just in case, make sure that MTP is checked in USB computer connection.
*Settings>Storage> Menu button>USB computer connection> check Media device (MTP)*
I know it may seem obvious to some but it does get overlooked sometimes.
Cheers!
Click to expand...
Click to collapse
In regards to the downloading the 'Samsung Driver' I have already attempted that, and with no luck of cooperating. Under 'device Manager' in Window 7. The listed device when I plug-in the phone is "Qualcomm CDMA Technologies MSM" with an exclamation mark. I have been trying to try the driver files so I can 'direct' the appropriate drivers file. But no luck locating it. The Samsung Kies installation mention that it has installed, but no luck.
MTP Option:
In regards to the MTP, I do not have that option available on my phone, the only thing avaliable is through the 'Developer option -> Checking/Unchecking USB debugging'
Please Help! :crying:

I have download the driver form the Samsung.com website.
Now, It doesn't technically allow to choose my specific phone model, with my carrier (BELL), so I went with the closest ATT.
I have located the folder with the USB driver, and force window to look through it.
But still windows says it cannot find the correct driver for my device....this is getting frustrating.
HELP...help...help...

dckp said:
MTP Option:
In regards to the MTP, I do not have that option available on my phone, the only thing avaliable is through the 'Developer option -> Checking/Unchecking USB debugging'
Please Help! :crying:
Click to expand...
Click to collapse
That is odd. Do you have a Storage category under System Settings? It should show you available space on internal and sd storage. What happens when you hit the menu button? (button to the left of the home button)
When you connect your USB cable, do you get a notification that says "Connected as a media device"?

Heres what you do.
Make sure you have current samsung usb drivers. Redownload just for fks sake.
Yeah idk wtf ms prob is but its got issues with samsung phones.
So ok drivers gtg?
Plug in phone
Wait for annoying pop up.
Leave phone pluged in and on restart computer.
You should get the all clear but first it may give you the cant recognize drivers thing give it a min should work.
Other solution
Download this
http://www.google.com/url?q=http://...gQFjAA&usg=AFQjCNEJj15zF95WRtG86GXUDNcyErSAGA
Basically just keep going back and forth witj mtp and mount you should kick it in.
And you may need to restart computer.
Sgs3 easy wotks pretty good for me.
You gotta make sure you have the microsoft mtp update installed.
Pia I know.

ace862 said:
That is odd. Do you have a Storage category under System Settings? It should show you available space on internal and sd storage. What happens when you hit the menu button? (button to the left of the home button)
When you connect your USB cable, do you get a notification that says "Connected as a media device"?
Click to expand...
Click to collapse
In regards to your question. Yes It is odd....'Yes" I do have a storage category under System settings. I do see available space on internal and sd storage. BUT Nothing happens when I hit the menu button. Absolutely nothing

dckp said:
In regards to your question. Yes It is odd....'Yes" I do have a storage category under System settings. I do see available space on internal and sd storage. BUT Nothing happens when I hit the menu button. Absolutely nothing
Click to expand...
Click to collapse
I'm sorry. That is my bad. It looks like those options are not available on the stock rom. I thought they were. The option is there on CM.
It looks like it is probably a driver issue. If your computer is not recognizing your device when it is plugged in, it could also be a bad USB cable. If you can try a different cable, see if something different happens when you plug in your phone.
Worst comes to worst, you may just have get a card reader and connect your sd card to your computer that way.

1. Is cable good? It may be sending incomplete signal. The fault could be your device's usb port or cable or pc usb port.
1a. test device with another known working usb cable
1b. test cable with another known working device
2. Is PC port good?
2a. Plug a different, known working USB device into port, do other devices work?
2b. Plug device into another usb port on PC, not into usb hub or front usb ports.
2c. Does it successfully connect for transfer with another PC?
3. Is driver good?
(This is most likely your problem, but a bad usb device, cable, or port can make it more difficult to troubleshoot. )
3a. Re-download driver. BUT BEFORE YOU DO...
use a different browser to download or delete your browser's cache. (Attempting to redownload may just be grabbing the already known poor copy.)
3b. Run Windows Update after driver is installed.
If still having problems.
Search for, download, and run the portable program usbdeview. Attached USB devices will be highlighted. See if it shows up to the system and what it is being recognized as.
It sounds like either a bad driver install or conflicting program/setting.
Turn off antivirus temporarily to rule that out.
For assistance with installing Qualcomm USB drivers, see this post:
http://forum.xda-developers.com/showthread.php?t=1669498