I am using a different device (NEC Medias Tab N08-D) but I have a similar problem - Android thinks I am
connected via USB, so I can't use my camera.
Update: I turned on and off my device while connected to my PC and I can now reconnect USB storage,
and since I can reconnect, I can disconnect USB storage, unplug my USB cord and yes, use my camera.
But android needs to offer better control of USB connections.
I think that it is due to my attempt to view the internal memory in the device by turning on the PC link,
before I had installed the required drivers.
[By the way, it is not immediately clear how to get to the screen which allows one to select
between PC link to internal memory, and USB mass storage to SD card. Solution- Click on
storage then the three dots that appear top right, and then on the one item menu
"USB Computer connection"]
I have subsequently installed the drivers first on another Windows machine but still can not see
the device internal memory from my computer.
Even so, Android thinks that there is a USB connection.
When I change the storage settings, to view the SD card as a "USB Mass Storage Device", the
"USB Connected" green-android screen is displayed but when I click on "Turn on USB storage"
I get the swirling circle (android equivalent of an egg timer) and never get to the orange android
screen, or the option to disconnect, irrespective of the SD card I use.
After a while the swirl circle disappears, and the "Turn on USB storage" button reappears.
So my device things that there is a USB connection, probably to the internal memory, and I
can't break the connectin.
And as Treesham the OP writes, this means that my camera says disconnect USB, so
I can not use my device's camera!
There is a work-around, which is to install a third-party camera, such as Zoom camera.
https://forums.androidcentral.com/e...=ar.com.moula.zoomcamera&hl=en&token=qk84wCn1
But I would like some way of killing rogue USB connections, since I will never be able to
access my SD card via USB.
I have tried installing some USB software such as
USB Host controller (which did not seem to be compatible with my device)
https://forums.androidcentral.com/e...tupy.android.usbhostcontroller&token=el8zEd-C
USB Device Info
https://forums.androidcentral.com/e...d=aws.apps.usbDeviceEnumerator&token=JkDv9vrv
which told me that no USB device is connected (when connected to my PC)
I would like an app called "USB connection killer" or "Unmount USB connection" or some such.
Related problems elsewhere....
Here a factory reset is advised.
http://androidforums.com/samsung-galaxy-s2-t-mobile/720199-unable-mount-usb-storage.html
Pain in the **** reinstalling all my apps, but I guess it might work.
I have Winamp installed which should press the "turn on USB storage" button for me (it did that till this problem arouse)
http://androidforums.com/droid-supp...w-disable-turn-usb-storage-pop-up-screen.html
I have tried turning on "USB debugging" in developer options, which resulted in an "ABD Interface" being installed on my computer, but still I can't see my device from my Windows computer (clicking on my computer) and I still can't connect to my SD card, and I still can't use the camera since it still thinks I am connected by USB (even when I disconnect).