Can't enable USB Mass Storage

I am trying to use recovery software (Recuva) to replace deleted photos. When connecting to my laptop, I can only choose Media Device (MTP) or Camera (PTP). Recuva cannot find my phone without USB Mass Storage enabled but that option seems to no longer exist? What can I do to enable this?

You need to enable USB debugging on phone, so the computer can see it as a storage device.
Go into Settings, then scroll down to the bottom and click on About Phone.
Scroll down to the bottom to where it says “Build Number”.
Tap on “Build number” 7 times. After the third tap, Android will start counting down on how many taps are left before you can access the developer options, with a playful “You are now [insert number of remaining taps] steps away from being a developer”.
After the 7th tap, you’ll get a “You are now a developer!” message.
Now, go back to the main settings screen, and voila, the “Developer options” menu will be visible at the bottom, just above “About phone”!
Developer options->enable USB debugging

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Macbook 2012 Mid: Can't mount USB mass storage after upgrading to Mavericks

Hi guys,
I'm having big problems with USB mass storages. After upgrading to Mavericks my Mac doesn't see some USB storage devices (mostly USB sticks and Android phone's memory cards via USB. My external USB 3.0 hard disks work fine) at all even though the devices themselves (for example my Android phone) are clearly recognized according to the System Report. When I plug them in, they don't show up on my Finder or on Disk Utility.
I've searched everywhere and it seems like some other people are having the same problem, none seems to offer a definite solution. I've even formatted my HD and reinstalled Mavericks from the recovery partition. Now it mounts a USB stick that was in one of the USB ports at the time of installation but still doesn't read anything else! The funny thing is when I boot into Windows 8 on my Boot Camp partition, I can mount any USB devices including the USB stick and the Android phone I'm having problems on Mavericks without any problems. I can even see then when I boot into the recovery so there's clearly something wrong with Mavericks.
Any chance someone has figured out a solution for this? Apple should've address this long time ago.

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a Fusion Drive or a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem? Note: If the devices are not in Mac OS X format, they normally won't mount in safe mode, but they should appear in Disk Utility.
After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

Can't mount USB mass storage device [RESOLVED]

I plugged in my iRiver mp3 player in an attempt to transfer files to it from my hard drive and it prompted me what I wanted to do with it (do nothing, open a folder, etc.). Irrepsective of which alternative I choose, I get the following error:
Error - Konqueror
A security policy in place prevents the sender from sending this message to the recipient, see message bus configuration file (rejected message had interface "org.freedesktop.Hal.Device.Volum" member "Mount" error name "(unset)" destination "org.freedesktop.Hal"
Can anyone tell me what this means and what I need to do to fix the problem?

Thanks Bert. It wasn't working until I realised I had to reboot to effect the new group membership!
Now I've got another problem. My iRiver shows up with permissions:
drwxr-xr-x
How do I change them so that every time I connect it to my PC it allows me to write to it?
It's mounted as /media/IRIVER but I couldn't see a 'media' group in /etc/group.

Z87-G45 USB Mass Storage & other devices not working (except keyboard/mouse)

My Z87-G45 died on me last month in warranty so I received a replacement one.
Unfortunatly I'm experiencing mayor USB issues.
- In Bios mode, no USB mass storage devices are detected (usb stick/disk). USB keyboard and mouse work fine
- In Windows no USB device except for the keyboard and mouse are detected.
- Can't see USB Mass Storage Device driver in the USB controllers list
Installed all latest drivers + CMOS CLEAR just in case. Results stay the same.
I assume it's best that I return the motherboard?
Kind regards
Frederick

Quote from: frederick.dhont on Today at 02:43:46
All drivers are already all up-to-date
I also want to stress that USB mass storage devices are not detected in BIOS, NOR as bootable USB device. So I can't upgrade BIOS even if I wanted to.
have you done >>Clear CMOS Guide<< with power cord removed?
have you tested with mainboard out of PC case placed over wooden table?

Can i use e60 as a usb mass storage device over bl...

Anyone knows if i can use e60 as a usb mass storage device over bluetooth?

no you cannot, mass storage is a USB device class like you said yourself.

I have a new mac air 11inches, i tried to download my pictures using my usb mass storage device. how come my mac can't recognize and open my files? pls help...

i have a new mac air 11 inches and i tried to download my pictures using my usb mass storage device. how come my mac is not reading it? pls hel...

What exactly is your 'mass USB device', and how is it formatted? When you connect it to your MBA, does it show up on the desktop?

Windows 7 64-bit not loading USB mass storage driver

I have a rather strange problem with my Windows 7 Ultimate 64-bit. Everything seems to work fine except for USB mass storage devices. I have USB keyboard, mouse and even a USB audio (wireless headset) all working fine on the computer. But
any USB external drive, thumdrive or USB card reader with flash cards inserted into the USB port of my computer won't work.
Windows keeps reporting that it is unable to find the driver. When I go into the Device Manager console and choose to manually update the driver, then point it to the C:\Windows (with search for sub-directories enabled), it detects the USB Mass Storage
driver but complains that it is unable to load it. The exact message is this: Windows found driver software for your device but encountered error while attempting to install it. USB Mass Storage Device. The system cannot find the file
specified.
This happens to ALL USB Mass storage device, and it doesn't matter which port I plug the device into.
Here's the weird thing, I have VMware Workstation installed on this computer and if I power on a VM that runs Windows 7 32-bit as the Guest OS and connect the USB storage devices to the guest OS via VMware Workstation, the USB storage devices work!
So it would appear that the USB ports are functioning properly but for some reasons, my Windows 64-bit is unable to load the driver.
Any idea how to fix this besides a "nuke it from orbit" and format/reinstall Windows?
Thanks.

I'm very excited to finally have a solution for this problem. Thank You Balaji for figuring this out. I've been struggling with this for a number of years, and had only one USB Hard Drive that worked. I too have VMware workstation, and had the missing files
in "c:\windows\inf." I can say with certainty that I did not delete the files from that folder, but something is common in both of our situations. Maybe it has to do with VMware, and some of it's updates over the years. I'm also using nCompute to share out
a networked desktop via the wire.
One more thing worthy of mention is this machine was an update from Windows Vista, and the USB hard drive that worked was configured back than. So although I could never add another HD, at least I had the one.
Now with having copied over the files, I can plugin other USB enclosures with different drives and they too are working.
Like you mentioned, it was always possible to use USB devices within my Virtual Machines, so it was clear that the USB ports were functional. I actually got the files from a clean Windows 7 VM, copying out the \windows\inf folder and doing a compare between
the the real one and the virtual one. I found the two missing files you mentioned, along with 8 others. I went ahead and included them all in your fix.
It worked, Amazing. Thanks again. :O)

Arch instance living on USB mass storage device is very slow

I installed an instance of Arch on a USB stick. This is a full installation, not a ramdisk-based "installer" or anything. However, this little guy is very, very slow. Sometimes, I have to wait for almost a minute between writes while the UI locks up (XFCE4, in case you're curious).
I think a lot of the problem comes from iowait load and pending write requests. I've been considering experimenting with data=writeback, but I've never used this ext option before, and thought I'd ask you guys about it first. I hear that sudden power failure can lead to pretty severe data loss with writeback enabled. Anyone have any experience with this? Are there any other tweaks I can apply to increase performance that would be appropriate for a USB mass storage device? I have noatime enabled, but that only gives it an almost unnoticeable bump.

@hifi25nl You can link a post directly, by copying the link that is behind the date, at least with my theme, on the same height as the post number.
https://bbs.archlinux.org/viewtopic.php … 2#p1428782

Samsung A900 USB mass storage and Tiger

I just got a Samsung A900 phone, when I connect with USB as mass storage device, the phone is mounted write protected in 10.4.3. In 10.3.9, it mounts as a writeable drive.

Hi there. I just bought a Samsung A900 and figured out how to use the phone as a USB Mass storage device:
My setup is a PowerBook G4 with 10.4.6 all updates (including the latest Security Updates and iLife '06 updates).
1. Plug the USB cable into the phone, and your computer.
2. The phone should say "USB Cable connected" on the main screen. If it doesn't, turn the phone off, and back on again with the cable plugged in.
3. Press the Menu button
4. Go to Tools
5. Go to Mass Storage
6. Select "Connect to PC."
You will not be able to receive phone calls while the phone is in USB Mass Storage mode.
A new volume should appear in the OS X Finder as "Untitled."
You have access to the same folders as with a Bluetooth connection.
Unfortunately, this also means that it is not a solution to get custom ring tones from an MP3 you own.
I tried looking in Terminal for any hidden folders, and I can't find any. I honestly think a firmware update/hack is needed to enable this on the phone.
Hope this helps.
PowerBook G4 1.33 GHz 17" Mac OS X (10.4.4) iPod w/video 60 GB, iSight
PowerBook G4 1.33 GHz 17" Mac OS X (10.4.6) iPod w/video 60 GB, iSight

Disabling of USB Mass Storage affects Default Printer setup

When I try to disable USB Mass Storage using HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UsbStor equals
4, the default local Printer i.e. HP LaserJet Pro 400 - M401D stopped working.
To avoid this thing, I have to once again enable the USB feature using
3 and re-install the printer driver along with all its application.
It never happened when tried in Windows XP Professional earlier.
Can you please provide solution of this?

Hi,
In Windows 7, you can disable USB by following GPO:
Computer Configuration > Administrative Templates > System > Removable Storage Access
Removable Disks: Deny execute access Enabled
Removable Disks: Deny read access Enabled
Removable Disks: Deny write access Enabled
Roger Lu
TechNet Community Support

USB Mass Storage Device - ?

Shuffle shows up as a USB Mass Storage Device under the drive (USB Port) i plug it into.
It will not take an update or reformat.
Wondering if it is possible that the factory format could be erased and now the unit is just being recognized as a storage device and unable to be used in the manner it was originally intended for...MUSIC.?
What does it mean when you get a message "Media in Drive - Changed" ?
Fixed many other ipods in past but only one shuffle so far....now this one has me going...no clue what else i can do to it.
Any help would be appreciated.

i think it was trying to read the shuffle when i wanted to format and restore.
i never did get it to work.
no way of knowing now..i just got through tearing into this one to make one good shuffle out of the two i was working on.
all was good till i went to put the slide bar on/off switch back on....broke the switch again.
do you have a switch?
thanks

USB Mass Storage device problem

Hello, I cant use my USB mass storage device in my computer, it is a SanDisk ImageMate CF/SM unit, which works perfectly in every other computer I have tried it, but in this one it hangs while accessing the device, and in linux, it hangs while mounting it (the same thing).
I dont know what might the problem be but some other people have seen the same problem, perhaps someone here can help me.

Yeah, I though so, but first I wanted to know what might be causing this incompatibility, in the linux posts people have said that it is a nForce2 generic problem, perhaps a big nvidia bug? heh

USB Mass Storage Device won't Eject/Unmount

My brother bought a Sanyo ICR-B180NX digital voice recorder last year to use with his iBook. It was working very well up until about August of 2005. At that point, the recorder would mount on the desktop, and he could get all the files off (it records direct to MP3 format rather than WMV, so he can edit his files very easily), but when it came time to eject it, the device icon would disappear and then immediately re-appear on the desktop. The display on the voice recorder remained static at the "Connect" screen.
I believe this happened in conjunction with some sort of OS update, as it was a "sudden" thing. We can't quite recall what happened between the times it worked and the time it stopped working.
I have tried the device on a PC, and it works the way it should, so I don't believe there's anything wrong with it.
Now, I know the system requirements on the website say that you must have Windows, but a statement from a support company (we returned it to the place where we got it, and they sent it out for repairs, and it came back with a letter) states that the device does act as a generic Mass Storage device, and thus may work with most systems.
All my other USB storage devices (ie. SanDisk 12-in-1 card reader, SanDisk Cruzer Titanium 2GB, iPod Photo), and FireWire devices (ie. WiebeTech TrayDock Extreme) work fine and unmount fine.
Does anyone know of any changes to the way Mass Storage devices are ejected in the current iteration of the OS? I haven't had a chance to test the device under an older OS, but will soon.
Alternately, if anyone has any suggestions regarding replacements (not really looking forward to that, given this recorder cost almost $300CAD), let me know. We need a device that can plug in via USB and transfer files to his iBook which he can edit together (he's a newspaper reporter in training, and needs to edit the interviews to take out such things like dead air, etc).
Thanks!
Mike Ma.

Hi
+USB mass storage device. An error occurred during the installation of the device the data is invalid+
This typical error message appears if the installation of external USB devices failed.
Why? This is not easy to say
What you could do firstly is to clean your registry using the freeware software called CCleaner (Google for that).
Install it and clean your OS and the registry entries.
After cleaning access the device manager and remove all USB root hubs and all USB Host controllers from the device list and reboot the notebook.
New reboot should cause a new installation of USB drivers.
Finally try to connect and try to install your external USB devices again.

Usb masse storage in solaris 10 problem !!

Hi all
i have srss 3.0 with solaris10-GA, all work well but the usb masse storage
does' nt recognize by srss3.0 are there solution for that problem.
or patch for srss 3.0.
thanks team

Congratulations on your choice of Os ;-)
To solve this problem you can try and create a directory called /rmdisk , then start vold running:
/etc/init.d/volmgt stop
/etc/init.d/volmgt start
if you are lucky your USB flash will show up under /rmdisk/<name> after a few seconds.
If not you should be able to see the flash with cfgadm, which list the status of USB ports (among other things).
Solaris should automatically create a /dev/dsk/ and /dev/rdsk/ entries for your flash memory, if its not automatically mounted by vold, try and stop vold using
/etc/init.d/volmgt stop
Then do a cd /dev/dsk and run an ls -lart, the USB devices should be among the last devices in that list, then mount it using:
mount -F pcfs /dev/dsk/<device> /some/directory
the device should end with s2 or p2, some flash devices might also need :c, aka /dev/dsk/<device>:c, it depends how its configured.
See man mount_pcfs for more information...
Hope this helps a bit (:
//Magnus

8320 - Can't use as mass storage device

Hello all,
I received this Blackberry from my dad, he works at this company and they gave him this blackberry a while ago, and eventually they gave him a new one so he gave me this one. Needless to say, it was registered with BES, with some restrictions, however I was able to remove them all, from firewall policies to MMS and other policies that didn't allow to do certain things. (it's now BIS)
Everything is working great, except that I'm not able to access the media card using windows explorer. I'm not getting the prompt when connected to the PC, despite the fact that at options (on the device) I have it configured to prompt, and media card is activated and all.. which should make it work, but still doesn't.
I installed USB drivers (5.0.1) then the DM 5.0.1... tried to connect but nothing. However, DM does detect the device and shows its PIN number, I can make backups and install apps from there, so it is connected correctly, but I don't get a prompt asking for mass storage or just charge as it should...
I think it has to do with restrictions it used to have, because I can't think of any other reason for it not working. I wiped the device once, reinstalled ALL the device software (4.5) from my carrier, make sure no policy was active (I removed them using both policy.bin file and JL_cmder method.. the later worked best as it removed policies for firewall as well, which I was not able to do with the blank policy.bin file method. I removed the policy file already from my computer and deleted the registry entry I made when I used it, so this should not be a problem now. I even reinstalled DM, USB drivers, and tried "calfix" from blackberry support, which supposedly was going to fix my problem, but didn't.
I tried reading lots and lots of forum post, either from here or any other BB forum on the internet, but the solutions haven't worked on my BB device...
So, can anyone help me? What should I do? USB mass storage option is the only thing that doesn't work, but I need it to transfer files between my PC and my BB....
Thanks in advance.
edit: I forgot to add more details,
Windows 7 Ultimate
8320 with OS 4.5.0.55 installed
USB cable: the one provided with the device, I even tried connecting another Blackberry and it worked fine, so it has to be a problem with my blackberry and not the PC/windows/cable/desktop software.

Hi and Welcome to the Forums!
First -- thank you so much for the detailed report...it really helps us know how to guide you! Kudos!!
I do not think that you have yet successfully removed the IT Policy...here is another method that has been tried by many that works:
http://supportforums.blackberry.com/t5/BlackBerry-Storm-BlackBerry-9500/Remove-IT-Policy-from-person...
After you complete that, you will have to reset everything from scratch...but the Policy should be gone.
Good luck and let us know!
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
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Can't enable USB Mass Storage

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