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Editorial Team
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Asked: 2026-06-13T19:53:31+00:00

I have been checking since some time to mount external drives to android phone

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I have been checking since some time to mount external drives to android phone i.e., if I plug external drive(hard/flash/camera) to android device, the android phone should be able to access the storage file system.

There are apps in the market which controls external devices through phone.

I can use the USB Host mode { http://developer.android.com/guide/topics/connectivity/usb/index.html } to communicate with the usb device. But USB Host and Accessory modes are directly supported in Android 3.1 (API level 12) or newer platforms.

While an app named DSLR Controller { https://play.google.com/store/apps/details?id=eu.chainfire.dslrcontroller&hl=en } , requires Android 2.1 or above. Since the application is based on accessing the camera through android phone. If the app displays the correct info, then the task of accessing the storage of camera (or any other drive) seems to be possible.

But I want to use the application in lower version as well. Any kind of help will be appreciated.

Please comment,if need any more description of the problem.

Thanks.

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1 Answer

  1. Editorial Team

    The only sure way of getting this done is to use API level above 12, otherwise a few phones may have support for usb host but most of them wont support it.
    The reason being first of all you need hardware support for usb host, even if that is present the drivers needed might not be compiled into the kernel, i did some work while trying to implement usb host on nook color, even though it had hardware support, getting usb host working took almost 2 months and a dedicated app. So its not something you will be able to do for every device. A few might support it out of the box but even those would need root and lots more work for mounting drives and all that..
    the DSLR camera also does it the same way look at the requirements 

    - Android device with ARMv7-A or newer CPU architecture (most 1ghz+ devices)
- Not rooted: Android 3.1 or higher with USB host kernel+API support
- Rooted: Android 2.3.1 or higher with USB host kernel support

    These are the only devices that can support USB host.

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